Omega-3 supplementation with resistance training does not improve body composition or lower biomarkers of inflammation more so than resistance training alone in older men.

Autor: Cornish SM; Faculty of Kinesiology and Recreation Management, University of Manitoba, 117 Frank Kennedy Centre, Winnipeg, Manitoba, Canada. Electronic address: Stephen.Cornish@umanitoba.ca., Myrie SB; Department of Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, University of Manitoba, W565 Duff Roblin Bldg, Winnipeg, Manitoba, Canada., Bugera EM; Faculty of Kinesiology and Recreation Management, University of Manitoba, 117 Frank Kennedy Centre, Winnipeg, Manitoba, Canada., Chase JE; Faculty of Kinesiology and Recreation Management, University of Manitoba, 117 Frank Kennedy Centre, Winnipeg, Manitoba, Canada., Turczyn D; Faculty of Kinesiology and Recreation Management, University of Manitoba, 117 Frank Kennedy Centre, Winnipeg, Manitoba, Canada., Pinder M; Department of Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, University of Manitoba, W565 Duff Roblin Bldg, Winnipeg, Manitoba, Canada.
Jazyk: angličtina
Zdroj: Nutrition research (New York, N.Y.) [Nutr Res] 2018 Dec; Vol. 60, pp. 87-95. Date of Electronic Publication: 2018 Sep 19.
DOI: 10.1016/j.nutres.2018.09.005
Abstrakt: The purpose of this study was to evaluate the effectiveness of 3.0 g/d of omega-3 fatty acid (eicosapentaenoic acid and docosahexaenoic acid) supplementation combined with progressive resistance training to improve body composition and lower inflammatory cytokines in older men when compared to placebo and resistance training. We hypothesized that completing a 12-week omega-3 supplementation period along with whole body resistance exercise (3 times/wk) would result in a significantly greater improvement in lean tissue mass as well as a significant decrease in interleukin-6 and tumor necrosis factor-α when compared to placebo. A total of 23 older men (≥65 years old) were randomized to an omega-3 supplementation group (n = 11) or placebo group (n = 12), and all the participants completed the same whole body progressive resistance training program. Baseline and 12-week data collection included body composition, muscle strength, functional ability, and inflammatory cytokines. Results indicated a significant main effect for time (all P < .05) for percent body fat (-2.5%), lean tissue mass (+1.1%), lumbar bone mineral density (+1.1%), hip bone mineral content (+1.1%), chest press strength (+31%), leg press strength (+37%), timed-up-and-go (-6.6%), and 6-minute walk distance (+4.5%) from baseline to post 12 weeks. No significant effects were noted for the 2 inflammatory cytokines measured (P > .05). We conclude that progressive resistance training exercise is an excellent method to enhance parameters of body composition, skeletal muscle strength, and functional ability in older men, whereas omega-3 supplementation did nothing to enhance these parameters or influence inflammatory biomarkers.
(Copyright © 2018 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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