Figure 1.
Effects of PR on 6MWD. Open circle: PR group before PR, solid circle: PR group after PR, open triangle: control group before PR, solid triangle: control group after usual care.
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.