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Fig. 2 | Journal of the International Society of Sports Nutrition

Fig. 2

From: Effects of two pre-workout supplements on concentric and eccentric force production during lower body resistance exercise in males and females: a counterbalanced, double-blind, placebo-controlled trial

Fig. 2

Subjective measures. ac: Changes in subjective energy (a), focus (b) and fatigue (c) were assessed as the difference between visual analog scale scores between baseline and subsequent measurements. d: Ratings of perceived exertion were assessed after each exercise set using the repetitions-in-reserve method. Pre and post designations refer to pre-supplementation and post-supplementation assessments. A significant time main effect was present, and time points with different letter designations are significantly different from each other (p < 0.05)

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