Fig. 4
From: Weekly Training Frequency Effects on Strength Gain: A Meta-Analysis
Lower vs. higher weekly training frequency. Pre- vs. post-mean ES strength difference on multi-joint and isolation exercise. The vertical line indicates the overall estimate of combined multi-joint and isolation studies pre- vs. post-mean ES strength difference. Horizontal lines indicate 95% CI, squares estimates, whereas square size is proportional to sample size and rhombs’ meta-analytically pooled estimates