Abstract
Creatine supplementation reduces the impact of muscle fatigue on post-activation potentiation (PAP) of the lower body, but its effects on the upper body remain unknown. This study examined the effects of creatine supplementation on muscle strength, explosive power, and optimal individual PAP time of the upper body during a set of complex training bouts in canoeists. Seventeen male high school canoeists performed a bench row for one repetition at maximum strength and conducted complex training bouts to determine the optimal individual timing of PAP and distance of overhead medicine ball throw before and after the supplementation. Subjects were assigned to a creatine or placebo group, and later consumed 20 g of creatine or carboxymethyl cellulose per day for six days. After supplementation, the maximal strength in the creatine group significantly increased (p < 0.05). The optimal individual PAP time in the creatine group was significantly earlier than the pre-supplementation times (p < 0.05). There was no significant change in explosive power for either group. Our findings support the notion that creatine supplementation increases maximal strength and shortens the optimal individual PAP time of the upper body in high school athletes, but has no effect on explosive power. Moreover, it was found that the recovery time between a bench row and an overhead medicine ball throw in a complex training bout is an individual phenomenon.
Highlights
Using ergogenic aids is a strategy or technique that serves to increase performance during exercise, efficiency of exercise, and recovery after exercise in athletes
To training maximize the effect of post-activation potentiation (PAP) on the upper body was significantly earlier after Cr supplementation, The primary original of this study indicate that the on optimal individual required decreasing from 9.75and min to 8.12results min after supplementation
This study suggests that short-term Cr supplementation in male high school canoeists resulted in improved upper body maximum strength and shortened optimal individual PAP times for training efficiency during a set of complex training bouts involving the upper body
Summary
Using ergogenic aids is a strategy or technique that serves to increase performance during exercise, efficiency of exercise, and recovery after exercise in athletes. Creatine (Cr) is one of the most commonly used nutritional ergogenic aids in various athletic populations and was designed to increase exercise-related strength and power for high intensity exercise bouts of short duration (
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