Twelve weeks of endurance training increases FFA mobilization and reesterification in postmenopausal women.

Journal of Applied Physiology
Matthew L JohnsonG A Brooks

Abstract

We examined the effects of exercise intensity and training on rates of lipolysis, plasma free fatty acid (FFA) appearance (R(a)), disappearance (R(d)), reesterification (R(s)), and oxidation (R(oxP)) in postmenopausal (PM) women. Ten sedentary but healthy women (55 ± 0.6 yr) completed 12 wk of supervised endurance exercise training on a cycle ergometer [5 days/wk, 1 h/day, 65% peak oxygen consumption (Vo(2peak))]. Flux rates were determined by continuous infusion of [1-(13)C]palmitate and [1,1,2,3,3-(2)H(5)]glycerol during 90 min of rest and 60 min of cycle ergometer exercise during one pretraining exercise trial [65% Vo(2peak) (PRE)] and two posttraining exercise trials [at power outputs that elicited 65% pretraining Vo(2peak) (absolute training; ABT) and 65% posttraining Vo(2peak) (relative training; RLT)]. Initial body weights (68.2 ± 4.5 kg) were maintained over the course of study. Training increased Vo(2peak) by 16.3 ± 3.9% (P < 0.05) (Zarins ZA, Wallis GA, Faghihnia N, Johnson ML, Fattor JA, Horning MA and Brooks GA. Metabolism 58: 9: 1338-1346, 2009). Glycerol R(a) and R(d) were elevated in the RLT trial (P < 0.05), but not the ABT trial after training. Rates of plasma FFA R(a), R(d), and R(oxP) were elevated during the...Continue Reading

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Citations

Apr 13, 2012·Journal of Lipids·Paulo J OliveiraVilma A Sardao
Dec 6, 2011·Lipids in Health and Disease·Jiexiu ZhaoBinxiu Zhao
Oct 24, 2012·Journal of Strength and Conditioning Research·Thomas G ManfrediMaria L Urso
Dec 17, 2014·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Matthew L JohnsonK Sreekumaran Nair
Mar 22, 2013·European Journal of Preventive Cardiology·Espen RostrupJan Erik Nordrehaug
Sep 10, 2020·Proceedings of the National Academy of Sciences of the United States of America·Bruna B BrandãoMarcelo A Mori
Mar 3, 2020·Frontiers in Physiology·Claire LaurensCedric Moro
Dec 5, 2018·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·L Isacco, J L Miles-Chan

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