... mak-ing and execution in practice.Numerous factors can be involved in athletes' decisions touse supplements including desired end points such asincreasing strength, endurance, training ... enhance-ment and/or health maintenance [10,15,34-37] includ-ing: caffeine, ephedrine, creatine, whey protein,antioxidants, ginseng, multivitamins, vitamin C, iron,Echinacea and magnesium supplements. ... studies for estimating effect size and power,hence determining the minimum sample size required fornoteworthy research. In parallel to the increase in computational power, anincreasing number of...