Fig. 1.
Timeline of the study. E = endurance training group; HHR = heart rate reserve; PA = physical activity recommendations group; RM = repetitions maximum; S = strength training group; SE = combined strength and endurance training group.
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.