Faculty Collaboration Database

Influence of age and endurance training on metabolic rate and hormones in healthy men. Am J Physiol 1990 Jul;259(1 Pt 1):E66-72

Date

07/11/1990

Pubmed ID

2196822

DOI

10.1152/ajpendo.1990.259.1.E66

Scopus ID

2-s2.0-0025302683 (requires institutional sign-in at Scopus site)   121 Citations

Abstract

The associations among age, maximal aerobic capacity (VO2max), and body composition with resting metabolic rate (RMR), and fasting plasma hormones were examined in endurance-trained and untrained older and younger men. A higher RMR (approximately 6%; P less than 0.05), normalized per kilogram of fat-free weight (FFW), was found in endurance-trained younger and older men relative to untrained men. VO2max, independent of FFW, accounted for a significant portion of the variation in RMR. Fasting insulin and the fasting insulin-to-glucose ratio were higher in older men relative to younger men. This difference was diminished when differences in percent body fat were taken into account. Plasma thyroid hormones and glucagon were not associated with age, VO2max, or percent body fat. We conclude that endurance-trained and older men have a higher RMR than untrained younger and older men that is independent of differences in FFW. Plasma levels of thyroid hormones and glucagon are not influenced by age, VO2max, or adiposity in healthy nonobese men.

Author List

Poehlman ET, McAuliffe TL, Van Houten DR, Danforth E Jr

Author

Timothy L. McAuliffe PhD Professor in the Psychiatry and Behavioral Medicine department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adult
Aged
Aging
Analysis of Variance
Blood Glucose
Diet
Energy Intake
Energy Metabolism
Exercise
Glucagon
Hormones
Humans
Insulin
Male
Oxygen Consumption
Reference Values
Thyroxine
Triiodothyronine