Figure 3.

Forest plots for the meta-analysis of the effect of testosterone supplementation on exercise tolerance; (A) exercise capacity as evaluated by the shuttle walk test (SWT) or the six-minute walk test (6MWT); (B) subgroup analysis according to the baseline mean total testosterone level in male CHF patients treated with testosterone supplementation; and (C) subgroup analysis according to the mean total testosterone level at endpoint in male CHF patients treated with testosterone supplementation.