FIGURE 3.
Linear regression analysis on the estimated VO2max by the step test combined with hear rate variability (HRV): (A) estimated VO2max by the step test; (B) estimated VO2max by HRV.
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.