Figure 1.
Workflow of the study. Eligible subjects will be randomly divided into Tai Chi group, stretching exercises group, and control group, and evaluated three times.
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.