It used to be that sports drinks were just sports drinks. Now there are several subcategories of sports drinks: regular, low-calorie, recovery, extended endurance, etc. One of the newer sports drink subcategories is the pre-exercise category. According to a new study published in the Journal of the International Society of Sports Nutrition, “Pre-exercise sports drinks (PRX) are commonly used as ergogenic aids in athletic competitions requiring aerobic power. However, in most cases, claims regarding their effectiveness have not been substantiated.”
The authors of this study set out to test the effectiveness of a specific PRX formulation. Twenty-nine college women performed treadmill tests on two occasions, consuming the PRX before one test and a placebo (flavored water) before the other. VO2max and time to exhaustion were both greater in the PRX trial. So there you have it.
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