EXSC 530 Study Guide - Quiz Guide: Performance-Enhancing Substance, Clenbuterol, Modafinil

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A substance or phenomenon that is work producing and is believed to enhance performance. Describe the different research design issues: amount of substance, too much or too little may show no effect, side effects can outweigh intended outcome, ie. Too many steroids will create estrogen, which will conflict with increases in muscle size/strength: ie. Doing an endurance event, you won"t want to use creatine; doing short-term, you wont: athlete"s belief in substance may affect performance, neither investigators nor subjects know who"s getting the treatment vs. placebo. Someone"s belief in the substance could affect their performance, so by using a placebo group, investigators can see the difference between someone who"s enhancing their own performance vs. )t means that an individual doesn"t know whether a treatment is the actual treatment or just a. There"s little evidence that supplements improve performance, but 80% of athletes take them anyway.