Nice post
Nicolas
Creatine, again, has little proven benefits (infact, no proven benefits, only many theories as to what it actually aids in);
Sorry, that is simply not reflected in the science...
Creatine is one of the best-documented supplements for enhancing athletic performance but the scientific evidence that it works
is far from complete. The best evidence we have points to benefits in forms of exercise that require repeated short-term bursts of high-intensity exercise
While it can be derived from foods...supplementation has shown some benefit.
Several small double-blind studies suggest that creatine can improve performance in exercises that involve repeated short bursts of high-intensity activity.
For example, a double-blind study investigated creatine and swimming performance in 18 men and 14 women. Men taking the supplement had significant increases in speed when doing 6 bouts of 50-meter swims started at 3-minute intervals, as compared with men taking placebo.
Interestingly, none of the women enrolled in the study showed any improvement with the creatine supplement.
In another double-blind study, 16 physical education students exercised 10 times for 6 seconds on a stationary cycle, alternating with a 30-second rest period. The results showed that individuals who took creatine for 6 days were better able to maintain cycle speed. Similar results were seen in many other studies of repeated high-intensity exercise, although there have been negative results as well.
Isometric exercise capacity (pushing against a fixed resistance) also may improve with creatine.
In addition, two double-blind, placebo-controlled studies, each lasting 28 days, provide some evidence that creatine and creatine plus HMB (or by extention BCAA) can increase lean muscle and bone mass.
However, studies of endurance or nonrepeated exercise have not shown benefits. Therefore, creatine probably won't help you for marathon running or single sprints.
Williams MH, Branch JD. Creatine supplementation and exercise performance: an update. J Am Coll Nutr. 1998;17:216,234.
Balsom PD, Ekblom B, Soderlund K, et al. Creatine supplementation and dynamic high-intensity intermittent exercise. Scand J Med Sci Sport. 1993;3:143,149.
Mujika I, Padilla S. Creatine supplementation as an ergogenic acid for sports performance in highly trained athletes: a critical review. Int J Sports Med. 1997;18:491,496.
Williams MH, Branch JD. Creatine supplementation and exercise performance: an update. J Am Coll Nutr. 1998;17:216,234.
Balsom PD, Ekblom B, Soderlund K, et al. Creatine supplementation and dynamic high-intensity intermittent exercise. Scand J Med Sci Sport. 1993;3:143,149.
Gilliam JD, Hohzorn C, Martin D, et al. Effect of oral creatine supplementation on isokinetic torque production. Med Sci Sports Exerc. 2000;32:993,996.
Williams MH, Branch JD. Creatine supplementation and exercise performance: an update. J Am Coll Nutr. 1998;17:216,234.
Volek JS, Kraemer WJ, Bush JA, et al. Creatine supplementation enhances muscular performance during high-intensity resistance exercise. J Am Diet Assoc. 1997;97:765,770.
Kreider RB. Dietary supplements and the promotion of muscle growth with resistance exercise. Sports Med. 1999;27:97,110.
Balsom PD, Harridge SDR, Soderlund K, et al. Creatine supplementation per se
does not enhance endurance exercise performance. Acta Physiol Scand. 1993;149:521,523.
Cooke WH, Grandjean PW, Barnes WS. Effect of oral creatine supplementation on power output and fatigue during bicycle ergometry. J Appl Physiol. 1995;78:670,673.
Bemben MG, Bemben DA, Loftiss DD, et al. Creatine supplementation during resistance training in college football athletes. Med Sci Sports Exerc. 2001;33:1667-1673.
Kambis KW, Pizzedaz SK. Short-term Creatine Supplementation Improves Maximum Quadriceps Contraction in Women. Int J Sport Nutr Exerc Metab. 2003;13:97,111.
Branch JD. Effect of creatine supplementation on body composition and performance: a meta-analysis. Int JSport Nutr Exerc Metab. 2003;13:198-226.
Rawson ES, Volek JS. Effects of creatine supplementation and resistance training on muscle strength and weightlifting performance. J Strength Cond Res. 2003;17:822-31.
Branch JD. Effect of creatine supplementation on body composition and performance: a meta-analysis. Int JSport Nutr Exerc Metab. 2003;13:198-226.
Branch JD. Effect of creatine supplementation on body composition and performance: a meta-analysis. Int J Sport Nutr Exerc Metab. 2003;13:198-226.