Figure 5.

Forest plot summarizing the effects of postoperative protein supplementation (PS) plus exercise training (ET) on changes in (a) walking capability; (b) timed up-and-go performance; (c) stair climbing performance; (d) physical activity; and (e) global functioning over the overall follow-up period. The square represents the point estimate of the intervention effect for each trial. The horizontal line links the lower and upper limits of the 95% CI for the given effect. The area of the squares indicates the relative weight of the trials in the meta-analysis. Trial results plotted on the right-hand side of the vertical axis indicate effects in favor of protein supplementation. The combined effects are plotted using black diamonds. 95% CI, 95% confidence interval; Std, standard; IV, inverse variance.