TY - JOUR T1 - Specific Collagen Peptides in Combination with Resistance Training Improve Body Composition and Regional Muscle Strength in Premenopausal Women: A Randomized Controlled Trial. AU - Jendricke,Patrick, AU - Centner,Christoph, AU - Zdzieblik,Denise, AU - Gollhofer,Albert, AU - König,Daniel, Y1 - 2019/04/20/ PY - 2019/03/22/received PY - 2019/04/09/revised PY - 2019/04/16/accepted PY - 2019/4/24/entrez PY - 2019/4/24/pubmed PY - 2019/11/5/medline KW - body composition KW - collagen peptides KW - hand-grip strength KW - leg press KW - premenopausal KW - protein supplementation KW - resistance training JF - Nutrients JO - Nutrients VL - 11 IS - 4 N2 - The aim was to investigate the effects of resistance exercise combined with supplementation of specific collagen peptides (SCP) on body composition and muscle strength in premenopausal women. In a double-blind, placebo-controlled, randomized trial 77 premenopausal women completed a 12-week resistance training (3 day/week) and ingested 15 g of SCP or placebo on a daily basis. Changes in body composition were determined by bioelectrical impedance analysis (BIA) and muscular strength by isometric strength testing. The treatment group (TG) significantly increased (p < 0.001) their percentage of fat-free mass. Although the control group (CG) also showed a significant (p < 0.01) gain in fat-free mass from pre- to post-training, the increase in the TG was significantly higher in an RMANOVA analysis (p < 0.05). Regarding the change in percentage body fat, a significant decline was observed in both TG (p < 0.001) and CG (p < 0.01), with a significantly higher reduction in the TG (p < 0.05). Subjects receiving 15 g of collagen peptides daily also showed a significantly higher gain in hand-grip strength compared to those performing resistance training only (p < 0.05). In both groups, the gain in leg strength (TG = p < 0.001; CG = p < 0.01) was significant after 12 weeks with a more pronounced effect in the treatment group. In conclusion, resistance training in combination with supplementation of SCP induced a significantly higher increase in fat-free mass and hand-grip strength than resistance training and placebo supplementation. In addition, there was a significantly higher loss in fat mass and a more pronounced increase in leg strength in the treatment group compared to the control group. SN - 2072-6643 UR - https://www.unboundmedicine.com/medline/citation/31010031/Specific_Collagen_Peptides_in_Combination_with_Resistance_Training_Improve_Body_Composition_and_Regional_Muscle_Strength_in_Premenopausal_Women:_A_Randomized_Controlled_Trial_ DB - PRIME DP - Unbound Medicine ER -