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  • Effects of Blood Flow Restriction Training with Protein Supplementation on Muscle Mass And Strength in Older Men

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    Author(s)
    Centner, Christoph
    Zdzieblik, Denise
    Roberts, Llion
    Gollhofer, Albert
    Koenig, Daniel
    Griffith University Author(s)
    Roberts, Llion A.
    Year published
    2019
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    Abstract
    Blood flow restriction (BFR) training has been shown to induce favorable changes in muscle mass and strength with a considerably low training load (20 – 30% 1RM). However, it has never been evaluated if an additional post-exercise protein supplementation enhances the effects of this training regimen. Thirty healthy older men (60.1 ± 7.6 years) were enrolled in the 8-week intervention and randomly allocated to one of the following groups: low-load BFR training with protein (collagen hydrolysate) supplementation (BFR-CH), low-load BFR training with placebo (BFR-PLA), or a control group without training, but with protein ...
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    Blood flow restriction (BFR) training has been shown to induce favorable changes in muscle mass and strength with a considerably low training load (20 – 30% 1RM). However, it has never been evaluated if an additional post-exercise protein supplementation enhances the effects of this training regimen. Thirty healthy older men (60.1 ± 7.6 years) were enrolled in the 8-week intervention and randomly allocated to one of the following groups: low-load BFR training with protein (collagen hydrolysate) supplementation (BFR-CH), low-load BFR training with placebo (BFR-PLA), or a control group without training, but with protein supplementation (CON). Muscle cross-sectional area (CSA), muscle strength, circulating reactive oxygen species and IGF-1 were measured before and after the intervention. Muscle CSA increased in both BFR-CH and BFR-PLA groups by 6.7 ± 3.2 % (p < 0.001) and 5.7 ± 2.7 % (p < 0.001) respectively. No significant changes were observed in the CON group (1.1 ± 1.7 %, p = 0.124). Evaluation of isometric strength (p = 0.247), insulin-like growth factor 1 (p = 0.705) and the production of reactive oxygen species (pt1 = 0.229; pt2 = 0.741) revealed no significant interaction effect but a significant long-term time effect (p < 0.001). Our results demonstrate that BFR training is an effective alternative for increasing muscle CSA in older men. Although there was a trend towards greater muscle mass adaptations in the BFR-CH group, these findings showed no statistical significance. Further research with larger sample sizes is needed to confirm these results.
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    Journal Title
    Journal of Sports Science and Medicine
    Volume
    18
    Issue
    3
    Publisher URI
    https://www.jssm.org/hf.php?id=jssm-18-471.xml
    Copyright Statement
    © 2019 JSSM. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Mechanical engineering
    Sports science and exercise
    Psychology
    Science & Technology
    Life Sciences & Biomedicine
    Sport Sciences
    Blood flow restriction
    sarcopenia
    Publication URI
    http://hdl.handle.net/10072/392096
    Collection
    • Journal articles

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