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The Effect of Specific Bioactive Collagen Peptides on Function and Muscle Remodeling During Human Resistance Training by Thomas G. Balshaw; Mark P. Funnell; Emmet McDermott; Thomas M. Maden‐Wilkinson; Sean Abela; Btool Quteishat; Max Edsey; Lewis J. James; Jonathan P. Folland is a Medicine article available to read on EtoBox.

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## Abstract ## Aim Bioactive collagen peptides (CP) have been suggested to augment the functional, structural (size and architecture), and contractile adaptations of skeletal muscle to resistance training (RT), but with limited evidence. This study aimed to determine if CP vs. placebo (PLA) supplementation enhanced the functional and underpinning structural, and contractile adaptations after 15 weeks of lower body RT. ## Methods Young healthy males were randomized to consume either 15 g of CP (__n__ = 19) or PLA (__n__ = 20) once every day during a standardized program of progressive knee extensor, knee flexor, and hip extensor RT 3 times/wk. Measurements pre‐ and post‐RT included: knee extensor and flexor isometric strength; quadriceps, hamstrings, and gluteus maximus volume with MRI; evoked twitch contractions, 1RM lifting strength, and architecture (with ultrasound) of the quadriceps. ## Results Percentage changes in maximum strength (isometric or 1RM) did not differ between‐groups (0.684 ≤ __p__ ≤ 0.929). Increases in muscle volume were greater (quadriceps 15.2% vs. 10.3%; vastus medialis (VM) 15.6% vs. 9.7%; total muscle volume 15.7% vs. 11.4%; [all] __p__ ≤ 0.032) or tended t

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Author

Thomas G. Balshaw; Mark P. Funnell; Emmet McDermott; Thomas M. Maden‐Wilkinson; Sean Abela; Btool Quteishat; Max Edsey; Lewis J. James; Jonathan P. Folland

Publisher

John Wiley and Sons Inc.

Published

2022

Language

EN

Field

Medicine (Life Sciences)