An official website of the United States government
Here's how you know
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.
FIGURE 1. Association of Age With Oxygen Uptake and its Determinants at Rest.
Correlations between age and the following parameters at upright rest: (A) oxygen consumption, (B) cardiac index, (C) stroke volume index, and (D) arteriovenous oxygen (A-V O2) difference.