Effects of physical exercise on phospholipid fatty acid composition in skeletal muscle

The American Journal of Physiology
A AnderssonB Vessby

Abstract

The effects of low-intensity exercise on the fatty acid composition in skeletal muscle and in serum were studied in 19 sedentary, middle-aged Swedish men. During a 10-wk period, all subjects were given a standardized diet with an identical fat composition. After 4 wk on this diet, they were randomly allocated to a daily exercise program (55% peak oxygen uptake) or to continue to live a sedentary life for the remaining 6 wk. Aerobic capacity (submaximal bicycle test) and peripheral insulin sensitivity (hyperinsulinemic euglycemic clamp) improved with training, whereas the body weight as well as the body composition (underwater weighing and bioimpedance) were unchanged. The proportions of palmitic acid (16:0) and linoleic acid [18:2(n-6)] and the sum of n-6 fatty acids [18:2(n-6), 20:3(n-6), 20:4(n-6)] were decreased in skeletal muscle phospholipids, whereas the proportion of oleic acid [18:1(n-9)] was increased, by training. The fatty acid profile in skeletal muscle triglycerides remained unchanged. We conclude that regular low-intensity exercise influences the fatty acid composition of the phospholipids in skeletal muscle, which hypothetically may contribute to changes of the skeletal muscle membrane fluidity and influence the ...Continue Reading

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Citations

Sep 23, 2000·American Journal of Physiology. Endocrinology and Metabolism·A AnderssonB Vessby
Feb 13, 2001·Journal of Applied Physiology·J W HelgeB Kiens
Jun 26, 2010·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Jimin RenCraig R Malloy
Sep 9, 2015·Molecular Nutrition & Food Research·Jacqueline HallmannUNKNOWN Food4Me Study
Sep 23, 2000·American Journal of Physiology. Endocrinology and Metabolism·N ZeghariM Donner
Nov 27, 2002·The American Journal of Clinical Nutrition·Agneta AnderssonBengt Vessby
Nov 25, 2003·Journal of Applied Physiology·Nigel TurnerJohn A Hawley
Oct 23, 2002·Journal of Applied Physiology·Vassilis MougiosMichalis G Nikolaidis
Jul 5, 2007·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Augustine OclooMartin D Brand
May 12, 2011·Integrative and Comparative Biology·Christopher G Guglielmo
Jun 23, 2004·Journal of Applied Physiology·Todd W MitchellStephen J Blanksby
Jun 25, 2002·Annals of the New York Academy of Sciences·B VessbyA Andersson
Apr 3, 2020·Cardiovascular Research·Yen Chin KoayJohn F O'Sullivan
Dec 24, 2005·Physiological Reviews·Bente Kiens
Jul 10, 2009·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Edwin R Price, Christopher G Guglielmo
Jan 23, 2021·FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology·Hao GuBo Zuo
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Jun 22, 2010·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Edwin R Price

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