Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Forest plot of duration of exercise. By subgroup analysis of the disease, <4 weeks [SMD = −0.74, 95% CI (−1.11, −0.37), I2 = 70%, P < 0.01] and 4–12 weeks [SMD = −0.95, 95% CI (−1.45, −0.45), I2 = 82%, P < 0.01] were statistically significant through the subgroup analysis.
