﻿<?xml version="1.0" encoding="utf-8"?><rss version="2.0"><channel><title>Age?</title><link>http://www.discussbodybuilding.com/</link><description /><copyright>(c) DiscussBodybuilding.com</copyright><ttl>30</ttl><item><title> RE: Age? (Capefl)</title><description>  weight lifting does not make your penis smaller.&amp;nbsp; Weight lifting doesnt stunt your growth, its the supplements that you take during lifting that may stunt your growth at an early age. </description><link>http://www.discussbodybuilding.com/fb.ashx?m=197670</link><pubDate>Sun, 05 Nov 2006 16:28:01 GMT</pubDate></item><item><title> RE: Age? (vdk_au)</title><description>  no it's more like 1kg = 2.2lbs, so therefore 60kg = 132lbs, you're off by about 5lbs :D </description><link>http://www.discussbodybuilding.com/fb.ashx?m=195606</link><pubDate>Sun, 29 Oct 2006 20:04:51 GMT</pubDate></item><item><title> RE: Age? (CrashCoder)</title><description>  A pound is 0.435 Kg. 60 Kg: 60 / 0.435 = 137.93 lbs &lt;br&gt;   </description><link>http://www.discussbodybuilding.com/fb.ashx?m=195393</link><pubDate>Sun, 29 Oct 2006 05:12:15 GMT</pubDate></item><item><title> RE: Age? (SmoothWillSmith)</title><description>  I can relate to the 'skellatally imateur' comment, as sometimes while benching - it's not that i cannot lift the weight, but i get really bad pains in my right wrist which obviously inhibits the lift. Usually with the higher weights - 60kg +  &lt;br&gt;  &amp;nbsp; &lt;br&gt;  Another question while im here if thats ok ? &lt;br&gt;  &amp;nbsp; &lt;br&gt;  As im in England, our gym operates in Kilograms (kg) and i'm curious as to what im lifting in relation to others here operating in lbs. Anyone link to a converter? or tell me some way of working it out? &lt;br&gt;   </description><link>http://www.discussbodybuilding.com/fb.ashx?m=195383</link><pubDate>Sun, 29 Oct 2006 04:01:37 GMT</pubDate></item><item><title> RE: Age? (CrashCoder)</title><description>  That throws up another question, just out of curiosity: &lt;br&gt;  They say that exercises like Squats and Deadlifts liberate growth hormones. If this is so, could it cause excessive growth in teens???  &lt;br&gt;  &amp;nbsp; &lt;br&gt;  It's really just out of curiosity. Since I'm 39 now, I guess I'm slightly beyond that age. &lt;br&gt;   </description><link>http://www.discussbodybuilding.com/fb.ashx?m=195063</link><pubDate>Sat, 28 Oct 2006 01:25:25 GMT</pubDate></item><item><title> RE: Age? (michguy)</title><description>  Gzinkl always goes all out and proves his ****, I love it! Great job dude, I admire you :) </description><link>http://www.discussbodybuilding.com/fb.ashx?m=195013</link><pubDate>Fri, 27 Oct 2006 20:52:27 GMT</pubDate></item><item><title> RE: Age? (gzinkl)</title><description>  &lt;blockquote class="quote"&gt;&lt;i&gt;&lt;/i&gt;&lt;br&gt;ORIGINAL:  mmcwiz &lt;br&gt;   &lt;br&gt;  Speaking of anecdotal... &lt;br&gt;   &lt;br&gt;  &lt;blockquote class="quote"&gt;&lt;i&gt;&lt;/i&gt;&lt;br&gt; If your growth plates have not completely formed and you lift too heavy, you can hurt your growth.&lt;/blockquote&gt; &lt;br&gt;   &lt;br&gt;  Can you link to a scientific journal or study that has shown this to be true? &lt;br&gt;  &lt;/blockquote&gt; &lt;br&gt;    &lt;br&gt;   Ok, I'll be big enough to admit that I was wrong--well, not totally wrong, but not correct.&amp;nbsp; Until you are physically mature, your lifting regime will be different than someone on a all-out mass building expedition. &lt;br&gt;    &lt;br&gt;   Here's what the Academy of Pediatrics says.&amp;nbsp; Note the following: &lt;br&gt;    &lt;br&gt;   "&lt;font color="#000000"&gt;A limite&lt;b&gt;d&lt;/b&gt; number of case reports have raise&lt;b&gt;d&lt;/b&gt; concern about epiphyseal injuries in the wrist an&lt;b&gt;d&lt;/b&gt; apophyseal injuries in the spine from weight lifting in skeletally immature in&lt;b&gt;d&lt;/b&gt;ivi&lt;b&gt;d&lt;/b&gt;uals. &lt;u&gt;Such injuries are uncommon an&lt;b&gt;d&lt;/b&gt; are believe&lt;b&gt;d&lt;/b&gt; to be largely preventable by avoi&lt;b&gt;d&lt;/b&gt;ing improper lifting techniques, maximal lifts, an&lt;b&gt;d&lt;/b&gt; improperly supervise&lt;b&gt;d&lt;/b&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B12" target="_blank" rel="nofollow"&gt;12&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B15" target="_blank" rel="nofollow"&gt;,15&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B16" target="_blank" rel="nofollow"&gt;,16&lt;/a&gt; &lt;/u&gt;&lt;/font&gt;&lt;u&gt; lifts."&lt;/u&gt; &lt;br&gt;   And recommendation no. 2, "Prea&lt;b&gt;d&lt;/b&gt;olescents an&lt;b&gt;d&lt;/b&gt; a&lt;b&gt;d&lt;/b&gt;olescents shoul&lt;b&gt;d&lt;/b&gt; avoi&lt;b&gt;d&lt;/b&gt; competitive weight lifting, power lifting, bo&lt;b&gt;d&lt;/b&gt;y buil&lt;b&gt;d&lt;/b&gt;ing, an&lt;b&gt;d&lt;/b&gt; maximal lifts until they reach physical an&lt;b&gt;d&lt;/b&gt; skeletal maturity.")--sorry it pasted in so ugly. &lt;br&gt;    &lt;br&gt;   &lt;font color="#000000"&gt; POLICY STATEMENT     &lt;/font&gt;    	 	 	            	       	 		 		 	                      	  		   			 				 				             			             			             			                                              	 	 		 			 	 	 		&lt;font color="#000000"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrowsm.gif"&gt; 	 		 	&lt;/font&gt;&lt;font color="#000000"&gt;&lt;font size="-1"&gt;   			&lt;a href="http://aappolicy.aappublications.org/cgi/content/abstract/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000742305_224" target="_blank" rel="nofollow"&gt; 			Abstract of this Article 			&lt;/a&gt; 			 	&lt;/font&gt;&lt;/font&gt;  		          	  	 	 		 	  	 	 		 	  	 	 		 	  	 	                   	  	 	                  	  	                   	                             	           	           	           	           	         	 	 		 			 	 	 	 		&lt;font color="#000000"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrowsm.gif"&gt; 	 		 	&lt;/font&gt;&lt;font color="#000000"&gt;&lt;font size="-1"&gt;   	&lt;a href="http://aappolicy.aappublications.org/cgi/reprint/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000742305_224" target="_blank" rel="nofollow"&gt; 	 	&lt;b&gt; 	P&lt;b&gt;D&lt;/b&gt;F Version of this Article 	&lt;/b&gt;  	&lt;/a&gt; 	 	&lt;/font&gt;&lt;/font&gt;   		 	 	 	 	                                   	            	                                                    	 	                  	 	 		&lt;font color="#000000"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrowsm.gif"&gt; 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  		&lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=11389279&amp;amp;link_type=MED" target="_blank" rel="nofollow"&gt; 		PubMe&lt;b&gt;d&lt;/b&gt; Citation 		&lt;/a&gt; 		 	&lt;/font&gt;&lt;/font&gt;  		 	           	                     	 		 			 	 		 			 	 	 		&lt;font color="#000000"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrowsm.gif"&gt; 	 		 	&lt;/font&gt;&lt;font color="#000000"&gt;&lt;font size="-1"&gt;   			This Article has been cite&lt;b&gt;d&lt;/b&gt; by: 			 	&lt;/font&gt;&lt;/font&gt;  		 		  			 	 		 			 	          	&lt;font color="#000000"&gt;&lt;font size="-1"&gt;   			&lt;img src="http://aappolicy.aappublications.org/icons/spacer.gif"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/spacer.gif"&gt; 			&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#otherarticles" target="_blank" rel="nofollow"&gt;other online articles&lt;/a&gt; 			 	&lt;/font&gt;&lt;/font&gt;  		 	  		 	                    	           	           	           	      	 	 		 			 			 	 	 		&lt;font color="#000000"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrowsm.gif"&gt; 	 		 	&lt;/font&gt;&lt;font color="#000000"&gt;&lt;font size="-1"&gt;   			&lt;a href="http://aappolicy.aappublications.org/cgi/citmgr?gca=pediatrics;107/6/1470&amp;amp;wherefrom=content" target="_blank" rel="nofollow"&gt; 			&lt;b&gt;D&lt;/b&gt;ownloa&lt;b&gt;d&lt;/b&gt; to Citation Manager 			&lt;/a&gt; 			 	&lt;/font&gt;&lt;/font&gt;  			 		 	                   		  	 		 	  	 		 	  		  	 		 			 		 	  	 		  	  				          			 		 	   		 	                    	 	 	 	 	 	 	 	 	 		&lt;font color="#000000"&gt;  &lt;/font&gt; &lt;br&gt;    &lt;font color="#000000"&gt;&lt;font size="-1"&gt; PE&lt;b&gt;D&lt;/b&gt;IATRICS Vol. 107 No. 6   June 2001, pp. 1470-1472 &lt;/font&gt;&lt;/font&gt;  &lt;br&gt;          &lt;font color="#000000"&gt;&lt;font size="-1"&gt;AMERICAN ACA&lt;b&gt;D&lt;/b&gt;EMY OF PE&lt;b&gt;D&lt;/b&gt;IATRICS:&lt;/font&gt;&lt;/font&gt;&lt;font color="#000000"&gt; &lt;br&gt;    Strength Training by Chil&lt;b&gt;d&lt;/b&gt;ren an&lt;b&gt;d&lt;/b&gt; A&lt;b&gt;d&lt;/b&gt;olescents  &lt;/font&gt;       &lt;font color="#000000"&gt; &lt;b&gt;Committee on Sports Me&lt;b&gt;d&lt;/b&gt;icine an&lt;b&gt;d&lt;/b&gt; Fitness&lt;/b&gt;&lt;/font&gt;  &lt;br&gt;                  	 	     	 	     		      	 	     	      	 	     	      	 	     	      	 	     	           	 	     	            &lt;font color="#000000"&gt;&lt;/font&gt; &lt;br&gt;       &lt;font color="#000000"&gt; &lt;/font&gt;   &lt;font color="#000000"&gt;&amp;nbsp;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrow.gif"&gt;&lt;/font&gt; &lt;font color="#000000"&gt;&lt;font size="+2"&gt;&amp;nbsp;&amp;nbsp;ABSTRACT&lt;/font&gt;&lt;/font&gt;     &lt;font color="#000000"&gt; &lt;/font&gt; &lt;font color="#000000"&gt;&lt;font size="-1"&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Top" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/uarrow.gif"&gt; Top&lt;/a&gt;   &lt;br&gt;  &lt;img src="http://aappolicy.aappublications.org/icons/toc/dot.gif"&gt; Abstract   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Introduction" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/darrow.gif"&gt; Intro&lt;b&gt;d&lt;/b&gt;uction&lt;/a&gt;   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Recommendation" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/darrow.gif"&gt; Recommen&lt;b&gt;d&lt;/b&gt;ation&lt;/a&gt;   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#References" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/darrow.gif"&gt; References&lt;/a&gt; &lt;/font&gt;&lt;/font&gt;     &lt;br&gt;   &lt;font color="#000000"&gt;Pe&lt;b&gt;d&lt;/b&gt;iatricians are often aske&lt;b&gt;d&lt;/b&gt; to give a&lt;b&gt;d&lt;/b&gt;vice on the safety an&lt;b&gt;d&lt;/b&gt; efficacy of strength training programs for chil&lt;b&gt;d&lt;/b&gt;ren an&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;olescents. This review, a revision of a previous American Aca&lt;b&gt;d&lt;/b&gt;emy of Pe&lt;b&gt;d&lt;/b&gt;iatrics policy statement, &lt;b&gt;d&lt;/b&gt;efines relevant terminology an&lt;b&gt;d&lt;/b&gt; provi&lt;b&gt;d&lt;/b&gt;es current information on risks an&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;ren an&lt;b&gt;d&lt;/b&gt; a&lt;b&gt;d&lt;/b&gt;olescents. &lt;/font&gt; a benefits of strength training for chil &lt;br&gt;           &lt;font color="#000000"&gt;                                                                &lt;/font&gt;  &lt;font color="#000000"&gt;&amp;nbsp;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrow.gif"&gt;&lt;/font&gt; &lt;font color="#000000"&gt;&lt;font size="+2"&gt;&amp;nbsp;&amp;nbsp;INTRO&lt;b&gt;D&lt;/b&gt;UCTION&lt;/font&gt;&lt;/font&gt;     &lt;font color="#000000"&gt; &lt;/font&gt; &lt;font color="#000000"&gt;&lt;font size="-1"&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Top" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/uarrow.gif"&gt; Top&lt;/a&gt;   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Abstract" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/uarrow.gif"&gt; Abstract&lt;/a&gt;   &lt;br&gt;  &lt;img src="http://aappolicy.aappublications.org/icons/toc/dot.gif"&gt; Intro&lt;b&gt;d&lt;/b&gt;uction   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Recommendation" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/darrow.gif"&gt; Recommen&lt;b&gt;d&lt;/b&gt;ation&lt;/a&gt;   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#References" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/darrow.gif"&gt; References&lt;/a&gt; &lt;/font&gt;&lt;/font&gt;               &lt;br&gt;   &lt;font color="#000000"&gt;Strength training (also known as resistance training) is a common component of sports an&lt;b&gt;d&lt;/b&gt; physical fitness programs for young people. Some a&lt;b&gt;d&lt;/b&gt;olescents an&lt;b&gt;d&lt;/b&gt; prea&lt;b&gt;d&lt;/b&gt;olescents may use strength training as a means to enhance muscle size an&lt;b&gt;d&lt;/b&gt; &lt;b&gt;d&lt;/b&gt;efinition or to simply improve appearance.     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;Strength training programs may inclu&lt;b&gt;d&lt;/b&gt;e the use of free weights, weight machines, elastic tubing, or bo&lt;b&gt;d&lt;/b&gt;y weight. The amount an&lt;b&gt;d&lt;/b&gt; form of resistance use&lt;b&gt;d&lt;/b&gt; as well as the frequency of resistance exercises is &lt;b&gt;d&lt;/b&gt;etermine&lt;b&gt;d&lt;/b&gt; by specific program goals. &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#T1" target="_blank" rel="nofollow"&gt;Table 1&lt;/a&gt; &lt;b&gt;d&lt;/b&gt;efines common terms use&lt;b&gt;d&lt;/b&gt; in strength training.   &lt;/font&gt; &lt;br&gt;     &lt;font color="#000000"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/font&gt;&lt;font color="#000000"&gt; &lt;br&gt;               &lt;/font&gt;&lt;font color="#000000"&gt;&lt;b&gt;View this table:&lt;/b&gt;&lt;/font&gt;&lt;font color="#000000"&gt;              &lt;br&gt;               &lt;/font&gt;&lt;font color="#000000"&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470/T1" target="_blank" rel="nofollow"&gt;[in this win&lt;b&gt;d&lt;/b&gt;ow]&lt;/a&gt;&lt;/font&gt;&lt;font color="#000000"&gt; &lt;br&gt;               &lt;/font&gt; &lt;font color="#000000"&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content-nw/full/pediatrics;107/6/1470/T1" target="_blank" rel="nofollow"&gt;[in a new win&lt;b&gt;d&lt;/b&gt;ow]&lt;/a&gt; &lt;br&gt;   &amp;nbsp;&lt;/font&gt;               &lt;font color="#000000"&gt;&lt;/font&gt; &lt;div align="center"&gt;&lt;font color="#000000"&gt;&lt;b&gt;TABLE 1&lt;/b&gt; &lt;br&gt;               &lt;b&gt;D&lt;/b&gt;efinition of Terms             &lt;/font&gt;      &lt;/div&gt;                          &lt;font color="#000000"&gt;&amp;nbsp;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrow.gif"&gt;&lt;/font&gt; &lt;font color="#000000"&gt;&lt;font size="+2"&gt;&amp;nbsp;&amp;nbsp;BENEFITS OF RESISTANCE TRAINING&lt;/font&gt;&lt;/font&gt;                  &lt;font color="#000000"&gt;In a&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;ition to the obvious goal of getting stronger, strength training programs may be un&lt;b&gt;d&lt;/b&gt;ertaken to improve sports performance, rehabilitate injuries, prevent injuries, an&lt;b&gt;d&lt;/b&gt;/or enhance long-term health. Stu&lt;b&gt;d&lt;/b&gt;ies have shown that strength training, when properly structure&lt;b&gt;d&lt;/b&gt; with regar&lt;b&gt;d&lt;/b&gt; to frequency, mo&lt;b&gt;d&lt;/b&gt;e (type of lifting), intensity, an&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;uration of program, can increase strength in prea&lt;b&gt;d&lt;/b&gt;olescents an&lt;b&gt;d&lt;/b&gt; a&lt;b&gt;d&lt;/b&gt;olescents.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B1" target="_blank" rel="nofollow"&gt;1-4&lt;/a&gt; muscle size, or power are lost after 6&amp;nbsp;weeks if resistance training is &lt;b&gt;d&lt;/b&gt;iscontinue&lt;b&gt;d&lt;/b&gt;.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B5" target="_blank" rel="nofollow"&gt;5&lt;/a&gt; Maintenance exercises may offset these losses, but specific recommen&lt;b&gt;d&lt;/b&gt;ations for maintaining strength gains have not been &lt;b&gt;d&lt;/b&gt;efine&lt;b&gt;d&lt;/b&gt; for prea&lt;b&gt;d&lt;/b&gt;olescents an&lt;b&gt;d&lt;/b&gt; a&lt;b&gt;d&lt;/b&gt;olescents. &lt;/font&gt;  Gains in strength,      &lt;br&gt;                    &lt;font color="#000000"&gt;In prea&lt;b&gt;d&lt;/b&gt;olescents, proper resistance training can enhance strength without concomitant muscle hypertrophy. Such gains in strength can be attribute&lt;b&gt;d&lt;/b&gt; to neuromuscular "learning," in which training increases the number of motor neurons that will fire with each muscle contraction.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B2" target="_blank" rel="nofollow"&gt;2&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B6" target="_blank" rel="nofollow"&gt;,6&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B7" target="_blank" rel="nofollow"&gt;,7&lt;/a&gt; This mechanism helps explain strength gains from resistance training in populations with low an&lt;b&gt;d&lt;/b&gt;rogen levels, inclu&lt;b&gt;d&lt;/b&gt;ing females an&lt;b&gt;d&lt;/b&gt; prea&lt;b&gt;d&lt;/b&gt;olescent males. Strength training can also augment the muscle enlargement that normally occurs with pubertal growth in males an&lt;b&gt;d&lt;/b&gt; females.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B3" target="_blank" rel="nofollow"&gt;3&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B6" target="_blank" rel="nofollow"&gt;,6&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B8" target="_blank" rel="nofollow"&gt;,8&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B9" target="_blank" rel="nofollow"&gt;,9&lt;/a&gt; &lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Strength training can improve an a&lt;b&gt;d&lt;/b&gt;olescent athlete's performance in weight lifting an&lt;b&gt;d&lt;/b&gt; power lifting. Strength training is a common practice in sports like football in which size an&lt;b&gt;d&lt;/b&gt; strength are &lt;b&gt;d&lt;/b&gt;esirable. &lt;b&gt;D&lt;/b&gt;espite theoretical benefits, scientific stu&lt;b&gt;d&lt;/b&gt;ies have faile&lt;b&gt;d&lt;/b&gt; to consistently show that improve&lt;b&gt;d&lt;/b&gt; strength enhances running spee&lt;b&gt;d&lt;/b&gt;, jumping ability, or overall sports performance.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B6" target="_blank" rel="nofollow"&gt;6&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B10" target="_blank" rel="nofollow"&gt;,10&lt;/a&gt; &lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Evi&lt;b&gt;d&lt;/b&gt;ence that strength training programs help prevent sports-relate&lt;b&gt;d&lt;/b&gt; musculoskeletal injuries in prea&lt;b&gt;d&lt;/b&gt;olescents an&lt;b&gt;d&lt;/b&gt; a&lt;b&gt;d&lt;/b&gt;olescents is inconclusive.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B11" target="_blank" rel="nofollow"&gt;11&lt;/a&gt; Furthermore, there is no evi&lt;b&gt;d&lt;/b&gt;ence that strength training will re&lt;b&gt;d&lt;/b&gt;uce the inci&lt;b&gt;d&lt;/b&gt;ence of catastrophic sports-relate&lt;b&gt;d&lt;/b&gt; injuries.     &lt;/font&gt; &lt;br&gt;                 &lt;font color="#000000"&gt;&amp;nbsp;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrow.gif"&gt;&lt;/font&gt; &lt;font color="#000000"&gt;&lt;font size="+2"&gt;&amp;nbsp;&amp;nbsp;RISKS OF STRENGTH TRAINING&lt;/font&gt;&lt;/font&gt;                  &lt;font color="#000000"&gt;The US Consumer Pro&lt;b&gt;d&lt;/b&gt;uct Safety Commission, through its National Electronic Injury Surveillance System (NEISS), has estimate&lt;b&gt;d&lt;/b&gt; the number of injuries that are associate&lt;b&gt;d&lt;/b&gt; with strength training equipment. The NEISS &lt;b&gt;d&lt;/b&gt;ata neither specifies cause of injury nor separates recreational from competitive weight lifting injuries. From 1991&amp;nbsp;to 1996,&amp;nbsp;an estimate&lt;b&gt;d&lt;/b&gt; 20&amp;nbsp;940&amp;nbsp;to 26&amp;nbsp;120&amp;nbsp;injuries occurre&lt;b&gt;d&lt;/b&gt; each year in in&lt;b&gt;d&lt;/b&gt;ivi&lt;b&gt;d&lt;/b&gt;uals un&lt;b&gt;d&lt;/b&gt;er 21&amp;nbsp;years ol&lt;b&gt;d&lt;/b&gt;.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B12" target="_blank" rel="nofollow"&gt;12&lt;/a&gt; Accor&lt;b&gt;d&lt;/b&gt;ing to NEISS &lt;b&gt;d&lt;/b&gt;ata an&lt;b&gt;d&lt;/b&gt; other stu&lt;b&gt;d&lt;/b&gt;ies,&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B13" target="_blank" rel="nofollow"&gt;13&lt;/a&gt; for 40% to 70% of all injuries. The lumbar back is the most commonly injure&lt;b&gt;d&lt;/b&gt; area.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B11" target="_blank" rel="nofollow"&gt;11&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B14" target="_blank" rel="nofollow"&gt;,14&lt;/a&gt; &lt;/font&gt; muscle strains account      &lt;br&gt;                    &lt;font color="#000000"&gt;A limite&lt;b&gt;d&lt;/b&gt; number of case reports have raise&lt;b&gt;d&lt;/b&gt; concern about epiphyseal injuries in the wrist an&lt;b&gt;d&lt;/b&gt; apophyseal injuries in the spine from weight lifting in skeletally immature in&lt;b&gt;d&lt;/b&gt;ivi&lt;b&gt;d&lt;/b&gt;uals. Such injuries are uncommon an&lt;b&gt;d&lt;/b&gt; are believe&lt;b&gt;d&lt;/b&gt; to be largely preventable by avoi&lt;b&gt;d&lt;/b&gt;ing improper lifting techniques, maximal lifts, an&lt;b&gt;d&lt;/b&gt; improperly supervise&lt;b&gt;d&lt;/b&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B12" target="_blank" rel="nofollow"&gt;12&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B15" target="_blank" rel="nofollow"&gt;,15&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B16" target="_blank" rel="nofollow"&gt;,16&lt;/a&gt; &lt;/font&gt; lifts.      &lt;br&gt;                    &lt;font color="#000000"&gt;Strength training programs &lt;b&gt;d&lt;/b&gt;o not seem to a&lt;b&gt;d&lt;/b&gt;versely affect linear growth an&lt;b&gt;d&lt;/b&gt; &lt;b&gt;d&lt;/b&gt;o not seem to have any long-term &lt;b&gt;d&lt;/b&gt;etrimental effect on car&lt;b&gt;d&lt;/b&gt;iovascular health.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B2" target="_blank" rel="nofollow"&gt;2&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B4" target="_blank" rel="nofollow"&gt;,4&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B17" target="_blank" rel="nofollow"&gt;17-19&lt;/a&gt; Young athletes with hypertension may experience further elevation of bloo&lt;b&gt;d&lt;/b&gt; pressure from the isometric &lt;b&gt;d&lt;/b&gt;eman&lt;b&gt;d&lt;/b&gt;s of strength training.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B8" target="_blank" rel="nofollow"&gt;8&lt;/a&gt; &lt;/font&gt;      &lt;br&gt;                 &lt;font color="#000000"&gt;&amp;nbsp;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrow.gif"&gt;&lt;/font&gt; &lt;font color="#000000"&gt;&lt;font size="+2"&gt;&amp;nbsp;&amp;nbsp;STRENGTH TRAINING GUI&lt;b&gt;D&lt;/b&gt;ELINES&lt;/font&gt;&lt;/font&gt;                  &lt;font color="#000000"&gt;A me&lt;b&gt;d&lt;/b&gt;ical evaluation before commencing a formal strength training program can i&lt;b&gt;d&lt;/b&gt;entify possible risk factors for injury an&lt;b&gt;d&lt;/b&gt; provi&lt;b&gt;d&lt;/b&gt;e an opportunity to &lt;b&gt;d&lt;/b&gt;iscuss training goals, techniques, an&lt;b&gt;d&lt;/b&gt; expectations. Risks involve&lt;b&gt;d&lt;/b&gt; with use of anabolic steroi&lt;b&gt;d&lt;/b&gt;s an&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;y-buil&lt;b&gt;d&lt;/b&gt;ing supplements are appropriate topics for &lt;b&gt;d&lt;/b&gt;iscussion with any a&lt;b&gt;d&lt;/b&gt;olescent intereste&lt;b&gt;d&lt;/b&gt; in getting bigger an&lt;b&gt;d&lt;/b&gt; stronger.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B20" target="_blank" rel="nofollow"&gt;20&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B21" target="_blank" rel="nofollow"&gt;,21&lt;/a&gt; &lt;/font&gt; other bo      &lt;br&gt;                    &lt;font color="#000000"&gt;If chil&lt;b&gt;d&lt;/b&gt;ren or a&lt;b&gt;d&lt;/b&gt;olescents un&lt;b&gt;d&lt;/b&gt;ertake a strength training program, they shoul&lt;b&gt;d&lt;/b&gt; begin with low-resistance exercises until proper technique is learne&lt;b&gt;d&lt;/b&gt;. When 8&amp;nbsp;to 15&amp;nbsp;repetitions can be performe&lt;b&gt;d&lt;/b&gt;, it is reasonable to a&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt; weight in small increments. Exercises shoul&lt;b&gt;d&lt;/b&gt; inclu&lt;b&gt;d&lt;/b&gt;e all muscle groups an&lt;b&gt;d&lt;/b&gt; be performe&lt;b&gt;d&lt;/b&gt; through the full range of motion at each joint. To achieve gains in strength, workouts nee&lt;b&gt;d&lt;/b&gt; to be at least 20&amp;nbsp;to 30&amp;nbsp;minutes long, take place a minimum of 2&amp;nbsp;to 3&amp;nbsp;times per week, an&lt;b&gt;d&lt;/b&gt; continue to a&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt; or repetitions as strength improves. There is no a&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;itional benefit to strength training more than 4&amp;nbsp;times per week.&lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#B5" target="_blank" rel="nofollow"&gt;5&lt;/a&gt; &lt;/font&gt; weight      &lt;br&gt;                    &lt;font color="#000000"&gt;Young people who want to improve sports performance will generally benefit more from practicing an&lt;b&gt;d&lt;/b&gt; perfecting skills of the sport than from resistance training. If long-term health benefits are the goal, strength training shoul&lt;b&gt;d&lt;/b&gt; be combine&lt;b&gt;d&lt;/b&gt; with an aerobic training program.     &lt;/font&gt; &lt;br&gt;             &lt;font color="#000000"&gt;&lt;/font&gt;    &lt;font color="#000000"&gt;&amp;nbsp;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrow.gif"&gt;&lt;/font&gt; &lt;font color="#000000"&gt;&lt;font size="+2"&gt;&amp;nbsp;&amp;nbsp;RECOMMEN&lt;b&gt;D&lt;/b&gt;ATIONS&lt;/font&gt;&lt;/font&gt;       &lt;font color="#000000"&gt; &lt;/font&gt;   &lt;font color="#000000"&gt;&lt;font size="-1"&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Top" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/uarrow.gif"&gt; Top&lt;/a&gt;   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Abstract" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/uarrow.gif"&gt; Abstract&lt;/a&gt;   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Introduction" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/uarrow.gif"&gt; Intro&lt;b&gt;d&lt;/b&gt;uction&lt;/a&gt;   &lt;br&gt;  &lt;img src="http://aappolicy.aappublications.org/icons/toc/dot.gif"&gt; Recommen&lt;b&gt;d&lt;/b&gt;ation   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#References" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/darrow.gif"&gt; References&lt;/a&gt; &lt;/font&gt;&lt;/font&gt;                       &lt;br&gt;                    &lt;font color="#000000"&gt;1. Strength training programs for prea&lt;b&gt;d&lt;/b&gt;olescents an&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;olescents can be safe an&lt;b&gt;d&lt;/b&gt; effective if proper resistance training techniques an&lt;b&gt;d&lt;/b&gt; safety precautions are followe&lt;b&gt;d&lt;/b&gt;. &lt;/font&gt; a      &lt;br&gt;                    &lt;font color="#000000"&gt;2. Prea&lt;b&gt;d&lt;/b&gt;olescents an&lt;b&gt;d&lt;/b&gt; a&lt;b&gt;d&lt;/b&gt;olescents shoul&lt;b&gt;d&lt;/b&gt; avoi&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;y buil&lt;b&gt;d&lt;/b&gt;ing, an&lt;b&gt;d&lt;/b&gt; until they reach physical an&lt;b&gt;d&lt;/b&gt; skeletal maturity. &lt;/font&gt; competitive weight lifting, power lifting, bo maximal lifts      &lt;br&gt;                    &lt;font color="#000000"&gt;3. When pe&lt;b&gt;d&lt;/b&gt;iatricians are aske&lt;b&gt;d&lt;/b&gt; to recommen&lt;b&gt;d&lt;/b&gt; or evaluate strength training programs for chil&lt;b&gt;d&lt;/b&gt;ren an&lt;b&gt;d&lt;/b&gt; a&lt;b&gt;d&lt;/b&gt;olescents, the following issues shoul&lt;b&gt;d&lt;/b&gt; be consi&lt;b&gt;d&lt;/b&gt;ere&lt;b&gt;d&lt;/b&gt;:  a.&amp;nbsp; Before beginning a formal strength training program, a me&lt;b&gt;d&lt;/b&gt;ical evaluation shoul&lt;b&gt;d&lt;/b&gt; be performe&lt;b&gt;d&lt;/b&gt; by a pe&lt;b&gt;d&lt;/b&gt;iatrician. If in&lt;b&gt;d&lt;/b&gt;icate&lt;b&gt;d&lt;/b&gt;, a referral may be ma&lt;b&gt;d&lt;/b&gt;e to a sports me&lt;b&gt;d&lt;/b&gt;icine physician who is familiar with various strength training metho&lt;b&gt;d&lt;/b&gt;s as well as risks an&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;olescents an&lt;b&gt;d&lt;/b&gt; a&lt;b&gt;d&lt;/b&gt;olescents. &lt;/font&gt; benefits in prea      &lt;br&gt;                    &lt;font color="#000000"&gt;b b. Aerobic con&lt;b&gt;d&lt;/b&gt;itioning shoul&lt;b&gt;d&lt;/b&gt; be couple&lt;b&gt;d&lt;/b&gt; with resistance training if general health benefits are the goal. &lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;c c. Strength training programs shoul&lt;b&gt;d&lt;/b&gt; inclu&lt;b&gt;d&lt;/b&gt;e a warm-up an&lt;b&gt;d&lt;/b&gt; cool-&lt;b&gt;d&lt;/b&gt;own component.     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;&lt;b&gt;d&lt;/b&gt; &lt;b&gt;d&lt;/b&gt;. Specific strength training exercises shoul&lt;b&gt;d&lt;/b&gt; be learne&lt;b&gt;d&lt;/b&gt; initially with no loa&lt;b&gt;d&lt;/b&gt; been mastere&lt;b&gt;d&lt;/b&gt;, incremental loa&lt;b&gt;d&lt;/b&gt;s can be a&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;e&lt;b&gt;d&lt;/b&gt;.  e.&amp;nbsp; Progressive resistance exercise requires successful completion of 8&amp;nbsp;to 15 repetitions in goo&lt;b&gt;d&lt;/b&gt; form before increasing weight or resistance. &lt;/font&gt; (resistance). Once the exercise skill has      &lt;br&gt;                    &lt;font color="#000000"&gt;f f. A general strengthening program shoul&lt;b&gt;d&lt;/b&gt; a&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;ress all major muscle groups an&lt;b&gt;d&lt;/b&gt; &lt;/font&gt; exercise through the complete range of motion.      &lt;br&gt;                    &lt;font color="#000000"&gt;g g. Any sign of injury or illness from strength training shoul&lt;b&gt;d&lt;/b&gt; be evaluate&lt;b&gt;d&lt;/b&gt; before continuing the exercise in question. &lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Committee on Sports Me&lt;b&gt;d&lt;/b&gt;icine an&lt;b&gt;d&lt;/b&gt; Fitness, 2000-2001     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;Reginal&lt;b&gt;d&lt;/b&gt; L.&amp;nbsp;Washington, M&lt;b&gt;D&lt;/b&gt;, Chairperson     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;&lt;b&gt;D&lt;/b&gt;avi&lt;b&gt;d&lt;/b&gt; T.&amp;nbsp;Bernhar&lt;b&gt;d&lt;/b&gt;t, M&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Jorge Gomez, M&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Miriam &lt;b&gt;D&lt;/b&gt;.&amp;nbsp;Johnson, M&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Thomas J.&amp;nbsp;Martin, M&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Thomas W.&amp;nbsp;Rowlan&lt;b&gt;d&lt;/b&gt;, M&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Eric Small, M&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Liaisons     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;Claire LeBlanc, M&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Cana&lt;b&gt;d&lt;/b&gt;ian Pe&lt;b&gt;d&lt;/b&gt;iatric Society     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;Robert Malina, Ph&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Institute for the Stu&lt;b&gt;d&lt;/b&gt;y of Youth Sports     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;Carl Krein, AT, PT     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;National Athletic Trainers Association     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;Ju&lt;b&gt;d&lt;/b&gt;ith C.&amp;nbsp;Young, Ph&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;National Association for Sport an&lt;b&gt;d&lt;/b&gt; Physical E&lt;b&gt;d&lt;/b&gt;ucation     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;Section Liaison     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;Fre&lt;b&gt;d&lt;/b&gt;erick E.&amp;nbsp;Ree&lt;b&gt;d&lt;/b&gt;, M&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Section on Orthope&lt;b&gt;d&lt;/b&gt;ics     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;Consultants     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;Steven J.&amp;nbsp;An&lt;b&gt;d&lt;/b&gt;erson, M&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Bernar&lt;b&gt;d&lt;/b&gt; A.&amp;nbsp;Griesemer, M&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;O&lt;b&gt;d&lt;/b&gt;e&lt;b&gt;d&lt;/b&gt; Bar-Or, M&lt;b&gt;D&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;Staff     &lt;/font&gt; &lt;br&gt;                    &lt;font color="#000000"&gt;Heather Newlan&lt;b&gt;d&lt;/b&gt;&lt;/font&gt;      &lt;br&gt;                    &lt;font color="#000000"&gt;&lt;/font&gt;     &lt;font color="#000000"&gt;&amp;nbsp;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrow.gif"&gt;&lt;/font&gt; &lt;font color="#000000"&gt;&lt;font size="+2"&gt;&amp;nbsp;&amp;nbsp;FOOTNOTES&lt;/font&gt;&lt;/font&gt;             &lt;font color="#000000"&gt; The recommen&lt;b&gt;d&lt;/b&gt;ations in this statement &lt;b&gt;d&lt;/b&gt;o not in&lt;b&gt;d&lt;/b&gt;icate an exclusive course of treatment or serve as a stan&lt;b&gt;d&lt;/b&gt;ar&lt;b&gt;d&lt;/b&gt; of me&lt;b&gt;d&lt;/b&gt;ical care. Variations, taking into account in&lt;b&gt;d&lt;/b&gt;ivi&lt;b&gt;d&lt;/b&gt;ual circumstances, may be appropriate.  &lt;/font&gt; &lt;br&gt;     &lt;br&gt;     &lt;br&gt;     &lt;br&gt;             &lt;font color="#000000"&gt;&lt;/font&gt;     &lt;font color="#000000"&gt;&amp;nbsp;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrow.gif"&gt;&lt;/font&gt; &lt;font color="#000000"&gt;&lt;font size="+2"&gt;&amp;nbsp;&amp;nbsp;ABBREVIATIONS&lt;/font&gt;&lt;/font&gt;      &lt;font color="#000000"&gt;  NEISS, National Electronic Injury Surveillance System.  &lt;/font&gt; &lt;br&gt;              &lt;font color="#000000"&gt;&lt;/font&gt;    &lt;font color="#000000"&gt;&amp;nbsp;&lt;img src="http://aappolicy.aappublications.org/icons/toc/rarrow.gif"&gt;&lt;/font&gt; &lt;font color="#000000"&gt;&lt;font size="+2"&gt;&amp;nbsp;&amp;nbsp;REFERENCES&lt;/font&gt;&lt;/font&gt;       &lt;font color="#000000"&gt; &lt;/font&gt;   &lt;font color="#000000"&gt;&lt;font size="-1"&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Top" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/uarrow.gif"&gt; Top&lt;/a&gt;   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Abstract" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/uarrow.gif"&gt; Abstract&lt;/a&gt;   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Introduction" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/uarrow.gif"&gt; Intro&lt;b&gt;d&lt;/b&gt;uction&lt;/a&gt;   &lt;br&gt;   &lt;a href="http://aappolicy.aappublications.org/cgi/content/full/pediatrics;107/6/1470?maxtoshow=&amp;amp;HITS=&amp;amp;hits=&amp;amp;RESULTFORMAT=&amp;amp;fulltext=vitamin+D&amp;amp;searchid=1162000433771_220#Recommendation" target="_blank" rel="nofollow"&gt;&lt;img src="http://aappolicy.aappublications.org/icons/toc/uarrow.gif"&gt; Recommen&lt;b&gt;d&lt;/b&gt;ation&lt;/a&gt;   &lt;br&gt;  &lt;img src="http://aappolicy.aappublications.org/icons/toc/dot.gif"&gt; References &lt;/font&gt;&lt;/font&gt;       &lt;ol&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Falk B, Tenenbaum G    The effectiveness of resistance training in chil&lt;b&gt;d&lt;/b&gt;ren. A meta-analysis.     &lt;i&gt;Sports Me&lt;b&gt;d&lt;/b&gt;&lt;/i&gt;&lt;/font&gt; 1996; 3:176-186 &lt;br&gt;  &lt;li&gt;     &lt;font color="#000000"&gt;       Ramsay JA, Blimkie CJ, Smith K, Garner S, Mac&lt;b&gt;D&lt;/b&gt;ougall J, Sale &lt;b&gt;D&lt;/b&gt;G    Strength training effects in prepubescent boys. Issues an&lt;b&gt;d&lt;/b&gt; controversies.     &lt;i&gt;Me&lt;b&gt;d&lt;/b&gt; Sci Sports Exerc&lt;/i&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=2233199&amp;amp;link_type=MED" target="_blank" rel="nofollow"&gt;[Me&lt;b&gt;d&lt;/b&gt;line]&lt;/a&gt;&lt;/font&gt; 1990; 22:605-614 &lt;br&gt;  &lt;li&gt;     &lt;font color="#000000"&gt;       Blimkie CJ    Resistance training &lt;b&gt;d&lt;/b&gt;uring prea&lt;b&gt;d&lt;/b&gt;olescence.     &lt;i&gt;Sports Me&lt;b&gt;d&lt;/b&gt;&lt;/i&gt; 1993; 15:389-407 &lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=8341873&amp;amp;link_type=MED" target="_blank" rel="nofollow"&gt;[Me&lt;b&gt;d&lt;/b&gt;line]&lt;/a&gt;&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Faigenbaum A&lt;b&gt;D&lt;/b&gt;, Zaichkowsky L&lt;b&gt;D&lt;/b&gt;, Westcott WL, Micheli LJ, Fehlan&lt;b&gt;d&lt;/b&gt;t AF    The effects of a twice-a-week strength training program on chil&lt;b&gt;d&lt;/b&gt;ren.     &lt;i&gt;Pe&lt;b&gt;d&lt;/b&gt;iatr Exerc Sci&lt;/i&gt; 1993; 5:339-346 &lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Faigenbaum A&lt;b&gt;D&lt;/b&gt;, Wescott WL, Micheli LJ,     The effects of strength training an&lt;b&gt;d&lt;/b&gt;&lt;b&gt;d&lt;/b&gt;etraining on chil&lt;b&gt;d&lt;/b&gt;ren.     &lt;i&gt;J Strength Con&lt;b&gt;d&lt;/b&gt;&lt;/i&gt; 1996; 10:109-114 &lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=10.1519/1533-4287%281996%29010%3C0109:TEOSTA%3E2.3.CO;2&amp;amp;link_type=%3CSTRONG%3E%3CFONT%20COLOR=" target="_blank" rel="nofollow"&gt;DOI" &amp;gt;[CrossRef]&lt;/a&gt;&lt;/font&gt; &lt;br&gt;  &lt;li&gt;     &lt;font color="#000000"&gt;       Kraemer WJ, Fry AC, Frykman PN, Conroy B, Hoffman J    Resistance training an&lt;b&gt;d&lt;/b&gt;&lt;i&gt;Pe&lt;b&gt;d&lt;/b&gt;iatr Exerc Sci&lt;/i&gt; 1989; 1:336-350 &lt;/font&gt; youth. &lt;br&gt;  &lt;li&gt;     &lt;font color="#000000"&gt;       Ozmun JC, Mikesky AE, Surburg PR    Neuromuscular a&lt;b&gt;d&lt;/b&gt;aptations following prepubescent strength training.     &lt;i&gt;Me&lt;b&gt;d&lt;/b&gt; Sci Sports Exerc&lt;/i&gt; 1994; 26:510-514 &lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=8201908&amp;amp;link_type=MED" target="_blank" rel="nofollow"&gt;[Me&lt;b&gt;d&lt;/b&gt;line]&lt;/a&gt;&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;     Fleck SJ, Kraemer WJ. &lt;i&gt;&lt;b&gt;D&lt;/b&gt;esigning Resistance Training Programs&lt;/i&gt;. 2n&lt;b&gt;d&lt;/b&gt; e&lt;b&gt;d&lt;/b&gt;. Champaign, IL: Human Kinetics Books; 1997&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Webb &lt;b&gt;D&lt;/b&gt;r    Strength training in chil&lt;b&gt;d&lt;/b&gt;ren an&lt;b&gt;d&lt;/b&gt; a&lt;b&gt;d&lt;/b&gt;olescents.     &lt;i&gt;Pe&lt;b&gt;d&lt;/b&gt;iatr Clin North Am&lt;/i&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=2216562&amp;amp;link_type=MED" target="_blank" rel="nofollow"&gt;[Me&lt;b&gt;d&lt;/b&gt;line]&lt;/a&gt;&lt;/font&gt; 1990; 37:1187-1210 &lt;br&gt;  &lt;li&gt;     &lt;font color="#000000"&gt;       Hakkinen K, Mero A, Kauhanen H    Specificity of en&lt;b&gt;d&lt;/b&gt;urance, sprint, an&lt;b&gt;d&lt;/b&gt; strength training on physical performance capacity in young athletes.     &lt;i&gt;J Sports Me&lt;b&gt;d&lt;/b&gt; Phys Fitness&lt;/i&gt; 1989; 29:27-35 &lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=2770265&amp;amp;link_type=MED" target="_blank" rel="nofollow"&gt;[Me&lt;b&gt;d&lt;/b&gt;line]&lt;/a&gt;&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Cahill BR, Griffith EH    Effect of preseason con&lt;b&gt;d&lt;/b&gt;itioning on the inci&lt;b&gt;d&lt;/b&gt;ence an&lt;b&gt;d&lt;/b&gt;&lt;i&gt;Am J Sports Me&lt;b&gt;d&lt;/b&gt;&lt;/i&gt; 1978; 6:180-184 &lt;a href="http://aappolicy.aappublications.org/cgi/ijlink?linkType=ABST&amp;amp;journalCode=amjsports&amp;amp;resid=6/4/180" target="_blank" rel="nofollow"&gt;[Abstract]&lt;/a&gt;&lt;/font&gt; severity of high school football knee injuries. &lt;br&gt;  &lt;li&gt;     &lt;font color="#000000"&gt;     National Electronic Injury Surveillance System. Washington, &lt;b&gt;D&lt;/b&gt;C: Consumer Pro&lt;b&gt;d&lt;/b&gt;ucts Safety Commission&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Risser WL, Risser JM, Preston &lt;b&gt;D&lt;/b&gt;    Weight-training injuries in a&lt;b&gt;d&lt;/b&gt;olescents.     &lt;i&gt;Am J &lt;b&gt;D&lt;/b&gt;is Chil&lt;b&gt;d&lt;/b&gt;&lt;/i&gt; 1990; 144:1015-1017 &lt;a href="http://aappolicy.aappublications.org/cgi/ijlink?linkType=ABST&amp;amp;journalCode=archpedi&amp;amp;resid=144/9/1015" target="_blank" rel="nofollow"&gt;[Abstract]&lt;/a&gt;&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Brown EW, Kimball RG    Me&lt;b&gt;d&lt;/b&gt;ical history associate&lt;b&gt;d&lt;/b&gt; with a&lt;b&gt;d&lt;/b&gt;olescent powerlifting.     &lt;i&gt;Pe&lt;b&gt;d&lt;/b&gt;iatrics&lt;/i&gt; 1983; 72:636-644 &lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=6634267&amp;amp;link_type=MED" target="_blank" rel="nofollow"&gt;[Me&lt;b&gt;d&lt;/b&gt;line]&lt;/a&gt;&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Bra&lt;b&gt;d&lt;/b&gt;y TA, Cahill BR, Bo&lt;b&gt;d&lt;/b&gt;nar LM    Weight training-relate&lt;b&gt;d&lt;/b&gt; injuries in the high school athlete.     &lt;i&gt;Am J Sports Me&lt;b&gt;d&lt;/b&gt;&lt;/i&gt; 1982; 10:1-5 &lt;a href="http://aappolicy.aappublications.org/cgi/ijlink?linkType=ABST&amp;amp;journalCode=amjsports&amp;amp;resid=10/1/1" target="_blank" rel="nofollow"&gt;[Abstract]&lt;/a&gt;&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Ryan JR, Salciccioli GG    Fractures of the &lt;b&gt;d&lt;/b&gt;istal ra&lt;b&gt;d&lt;/b&gt;ial epiphysis in a&lt;b&gt;d&lt;/b&gt;olescent weight lifters.     &lt;i&gt;Am J Sports Me&lt;b&gt;d&lt;/b&gt;&lt;/i&gt; 1976; 4:26-27 &lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=937625&amp;amp;link_type=MED" target="_blank" rel="nofollow"&gt;[Me&lt;b&gt;d&lt;/b&gt;line]&lt;/a&gt;&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Weltman A, Janney C, Rians CB, Stran&lt;b&gt;d&lt;/b&gt; K, Katch FT    The effects of hy&lt;b&gt;d&lt;/b&gt;raulic-resistance strength training on serum lipi&lt;b&gt;d&lt;/b&gt; levels in prepubertal boys.     &lt;i&gt;Am J &lt;b&gt;D&lt;/b&gt;is Chil&lt;b&gt;d&lt;/b&gt;&lt;/i&gt; 1987; 141:777-780 &lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=10.1001/archpedi.141.7.777&amp;amp;link_type=DOI" target="_blank" rel="nofollow"&gt;[CrossRef]&lt;/a&gt;&lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=3591769&amp;amp;link_type=MED" target="_blank" rel="nofollow"&gt;[Me&lt;b&gt;d&lt;/b&gt;line]&lt;/a&gt;&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Weltman A, Janney C, Rians CB,     The effects of hy&lt;b&gt;d&lt;/b&gt;raulic resistance strength training in pre-pubertal males.     &lt;i&gt;Me&lt;b&gt;d&lt;/b&gt; Sci Sports Exerc&lt;/i&gt; 1986; 18:629-638 &lt;a href="http://aappolicy.aappublications.org/cgi/external_ref?access_num=2946921&amp;amp;link_type=MED" target="_blank" rel="nofollow"&gt;[Me&lt;b&gt;d&lt;/b&gt;line]&lt;/a&gt;&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       Bailey &lt;b&gt;D&lt;/b&gt;A, Martin A&lt;b&gt;D&lt;/b&gt;    Physical activity an&lt;b&gt;d&lt;/b&gt; skeletal health in a&lt;b&gt;d&lt;/b&gt;olescents.     &lt;i&gt;Pe&lt;b&gt;d&lt;/b&gt;iatr Exerc Sci&lt;/i&gt; 1994; 6:330-347 &lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       American Aca&lt;b&gt;d&lt;/b&gt;emy of Pe&lt;b&gt;d&lt;/b&gt;iatrics, Committee on Sports Me&lt;b&gt;d&lt;/b&gt;icine an&lt;b&gt;d&lt;/b&gt; Fitness    A&lt;b&gt;d&lt;/b&gt;olescents an&lt;b&gt;d&lt;/b&gt; anabolic steroi&lt;b&gt;d&lt;/b&gt;s: a subject review.     &lt;i&gt;Pe&lt;b&gt;d&lt;/b&gt;iatrics&lt;/i&gt; 1997; 99:904-908 &lt;a href="http://aappolicy.aappublications.org/cgi/ijlink?linkType=ABST&amp;amp;journalCode=pediatrics&amp;amp;resid=99/6/904" target="_blank" rel="nofollow"&gt;[Abstract/Free Full&amp;nbsp;Text]&lt;/a&gt;&lt;/font&gt;&lt;li&gt;     &lt;font color="#000000"&gt;       American Aca&lt;b&gt;d&lt;/b&gt;emy of Pe&lt;b&gt;d&lt;/b&gt;iatrics, Committee on Sports Me&lt;b&gt;d&lt;/b&gt;icine    Anabolic steroi&lt;b&gt;d&lt;/b&gt;s an&lt;b&gt;d&lt;/b&gt; the a&lt;b&gt;d&lt;/b&gt;olescent athlete.     &lt;i&gt;Pe&lt;b&gt;d&lt;/b&gt;iatrics&lt;/i&gt; 1989; 83:127-128 &lt;a href="http://aappolicy.aappublications.org/cgi/ijlink?linkType=ABST&amp;amp;journalCode=pediatrics&amp;amp;resid=83/1/127" target="_blank" rel="nofollow"&gt;[Abstract/Free Full&amp;nbsp;Text]&lt;/a&gt;&lt;/font&gt; &lt;/ol&gt;           &lt;hr&gt; &lt;font color="#000000"&gt;&lt;font size="-1"&gt; Pe&lt;b&gt;d&lt;/b&gt;iatrics (ISSN 0031 4005). &lt;a href="http://aappolicy.aappublications.org/terms.shtml" target="_blank" rel="nofollow"&gt;Copyright ©2001 by the American Aca&lt;b&gt;d&lt;/b&gt;emy of Pe&lt;b&gt;d&lt;/b&gt;iatrics&lt;/a&gt; &lt;/font&gt;&lt;/font&gt;    		                   	 	 	 	 	             &lt;font color="#000000"&gt; &lt;/font&gt;       &lt;font color="#000000"&gt;[font=""]      &lt;/font&gt;&lt;/font&gt; &lt;font color="#000000"&gt;  &lt;br&gt;    &lt;br&gt;   &lt;/font&gt;  &lt;br&gt;   </description><link>http://www.discussbodybuilding.com/fb.ashx?m=194995</link><pubDate>Fri, 27 Oct 2006 19:08:42 GMT</pubDate></item><item><title> RE: Age? (mmcwiz)</title><description>  Speaking of anecdotal... &lt;br&gt;   &lt;br&gt;  &lt;blockquote class="quote"&gt;&lt;i&gt;&lt;/i&gt;&lt;br&gt; If your growth plates have not completely formed and you lift too heavy, you can hurt your growth.&lt;/blockquote&gt; &lt;br&gt;   &lt;br&gt;  Can you link to a scientific journal or study that has shown this to be true? &lt;br&gt;   &lt;br&gt;   &lt;br&gt;   </description><link>http://www.discussbodybuilding.com/fb.ashx?m=194931</link><pubDate>Fri, 27 Oct 2006 13:40:18 GMT</pubDate></item><item><title> RE: Age? (gzinkl)</title><description>  No, have to disagree with jkoemel. &lt;br&gt;   &lt;br&gt;  If your growth plates have not completely formed and you lift too heavy, you can hurt your growth.&amp;nbsp; You cannot rely on anecdotal evidence ("I still grew" is not objective nor scientific--what if you would have grown more?&amp;nbsp; Has your whole body been examined with imaging techniques for bone damage)? &lt;br&gt;   &lt;br&gt;  However, 16 is probably ok. &lt;br&gt;   &lt;br&gt;  If Mr. Winky shrinks, that will make medical history. &lt;br&gt;   </description><link>http://www.discussbodybuilding.com/fb.ashx?m=194911</link><pubDate>Fri, 27 Oct 2006 12:47:15 GMT</pubDate></item><item><title> RE: Age? (jkoelmel)</title><description>  typical myths that float around the locker room...but no they arent true...your penis is not going to get smaller because you lift weights, and i personally grew the most while lifting...if you notice, its the people that dont workout, or have realized that they have the lack of motivation to workout, that spread these rumors...they're jealous. </description><link>http://www.discussbodybuilding.com/fb.ashx?m=194903</link><pubDate>Fri, 27 Oct 2006 12:11:59 GMT</pubDate></item><item><title> Age? (SmoothWillSmith)</title><description>  Well, i've started gyming it and body building for 5months... When i told my friends and stuff they began questioning me : &lt;br&gt;  &amp;nbsp; &lt;br&gt;  Weight lifting at an early age can stunt your growth? &lt;br&gt;  &amp;nbsp; &lt;br&gt;  It makes your penis small!? &lt;br&gt;  &amp;nbsp; &lt;br&gt;  I'm 16 years old, should age be a problem? Does it make your knob smaller? :O &lt;br&gt;  &amp;nbsp; &lt;br&gt;  (sry if covered, im new) &lt;br&gt;   </description><link>http://www.discussbodybuilding.com/fb.ashx?m=194897</link><pubDate>Fri, 27 Oct 2006 11:41:02 GMT</pubDate></item></channel></rss>