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.
Line chart: primary outcomes. (A) The changes of modified Medical Research Council (mMRC) scale , from baseline to 14 days. (B) The changes of Borg scale, from baseline to 14 days. All data were expressed as mean ± standard error of the mean; n = 194 per group
