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The Influence of Specific Bioactive Collagen Peptides on Body Composition and Muscle Strength in Middle-Aged, Untrained Men: A Randomized Controlled Trial

Author

Listed:
  • Denise Zdzieblik

    (Department for Nutrition, Institute for Sports and Sports Science, University of Freiburg, Schwarzwaldstr 175, 79117 Freiburg, Germany)

  • Patrick Jendricke

    (Department for Nutrition, Institute for Sports and Sports Science, University of Freiburg, Schwarzwaldstr 175, 79117 Freiburg, Germany)

  • Steffen Oesser

    (CRI, Collagen Research Institute, Schauenburgerstr 116, 24118 Kiel, Germany)

  • Albert Gollhofer

    (Department for Nutrition, Institute for Sports and Sports Science, University of Freiburg, Schwarzwaldstr 175, 79117 Freiburg, Germany)

  • Daniel König

    (Centre of Sports Science, Department for Nutrition, Exercise and Health, University of Vienna, Auf der Schmelz 6, 1150 Vienna, Austria
    Department for Nutrition, Exercise and Health, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria)

Abstract

It has been shown that specific collagen peptides combined with resistance training (RT) improves body composition and muscle strength in elderly sarcopenic men. The main purpose of this RCT study was to investigate the efficacy of the identical specific collagen peptides combined with RT on body composition and muscle strength in middle-aged, untrained men. Furthermore, in the exploratory part of the study, these results were compared with another group that had received whey protein in addition to the RT. Ninety-seven men completed this study and participated in a 12-week RT program. They ingested 15 g of specific collagen peptides (n = 30; CP-G), placebo (n = 31; P-G), or whey protein (n = 36; WP-G) daily. Changes in fat free mass and fat mass were determined by dual-energy X-ray absorptiometry (DXA), and isometric leg strength was measured. All participants had significantly ( p < 0.01) improved levels in fat free mass (ΔCP-G = 3.42 ± 2.54 kg; ΔP-G = 1.83 ± 2.09 kg; ΔWP-G = 2.27 ± 2.56 kg), fat mass (Δ CP-G = −5.28 ± 3.19 kg; ΔP-G = −3.39 ± 3.13 kg; ΔWP-G = −4.08 ± 2.80 kg) and leg strength (ΔCP-G = 163 ± 189 N; ΔP-G = 100 ± 154 N; ΔWP-G = 120 ± 233 N). The main analysis revealed a statistically significantly higher increase in fat free mass ( p = 0.010) and decrease in fat mass ( p = 0.023) in the CP-G compared with the P-G. The exploratory analysis showed no statistically significant differences between WP-G and CP-G or P-G, regarding changes of fat free mass and fat mass. In conclusion, specific collagen peptide supplementation combined with RT was associated with a significantly greater increase in fat free mass and a decrease in fat mass compared with placebo. RT combined with whey protein also had a positive impact on body composition, but the respective effects were more pronounced following the specific collagen peptide administration.

Suggested Citation

  • Denise Zdzieblik & Patrick Jendricke & Steffen Oesser & Albert Gollhofer & Daniel König, 2021. "The Influence of Specific Bioactive Collagen Peptides on Body Composition and Muscle Strength in Middle-Aged, Untrained Men: A Randomized Controlled Trial," IJERPH, MDPI, vol. 18(9), pages 1-15, April.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:9:p:4837-:d:547363
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    References listed on IDEAS

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    3. Maria Felicia Faienza & Giuseppe Lassandro & Mariangela Chiarito & Federica Valente & Loredana Ciaccia & Paola Giordano, 2020. "How Physical Activity across the Lifespan Can Reduce the Impact of Bone Ageing: A Literature Review," IJERPH, MDPI, vol. 17(6), pages 1-9, March.
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