Journal article

Effect of 1-h moderate-intensity aerobic exercise on intramyocellular lipids in obese men before and after a lifestyle intervention

Stephanie Ipavec-Levasseur, Ilaria Croci, Stephane Choquette, Nuala M Byrne, Gary Cowin, Trisha M O'Moore-Sullivan, Johannes B Prins, Ingrid J Hickman

APPLIED PHYSIOLOGY NUTRITION AND METABOLISM | CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS | Published : 2015

Abstract

Intramyocellular lipids (IMCL) are depleted in response to an acute bout of exercise in lean endurance-trained individuals; however, it is unclear whether changes in IMCL content are also seen in response to acute and chronic exercise in obese individuals. We used magnetic resonance spectroscopy in 18 obese men and 5 normal-weight controls to assess IMCL content before and after an hour of cycling at the intensity corresponding with each participant's maximal whole-body rate of fat oxidation (Fatmax). Fatmax was determined via indirect calorimetry during a graded exercise test on a cycle ergometer. The same outcome measures were reassessed in the obese group after a 16-week lifestyle interve..

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University of Melbourne Researchers