"ergogenic effects" refers to the extra benefits or improvements in performance that a substance or method may provide in terms of physical or mental abilities. Full definition
Timing creatine doses when it is combined with lifting weights has proven to be an essential factor that increases the aforementioned ergogenic effects. (fitnessandpower.com)
A small number of studies have considered a potential ergogenic effect of low and very low intakes of caffeine taken late in prolonged exercise. (coffeeandhealth.org)
For context, it said that while «ergogenic effects of caffeine on aerobic or endurance exercise are well documented,» its impact on «high - intensity, primarily anaerobic performance, was not well understood.» (businessinsider.com)