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Fig. 3 | Journal of the International Society of Sports Nutrition

Fig. 3

From: Effects of caffeine intake on muscle strength and power: a systematic review and meta-analysis

Fig. 3

Forest plot showing differences between the effects of placebo and caffeine trials on measures of upper-body maximal muscle strength. The size of the plotted squares reflects the relative statistical weight of each study. The numbers on the x-axis denote the standardized mean differences expressed as Hedge’s g. The horizontal lines denote the respective 95% confidence intervals (CI)

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