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.
Effect of caffeine and albuterol on human metabolic rate. Values are means ± 95% confidence interval, n=8. Bars that are statistically different (p<0.05) are denoted by a different letter (a, b or c). Bars with the same letter are not significantly different.
