Lee, J, Bridge, J, Clark, D, Stewart, C and Erskine, R (2023) Collagen supplementation augments changes in patellar tendon properties in female soccer players. Frontiers in Physiology, 14. ISSN 1664-042X

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Abstract

We investigated the effect of collagen hydrolysate supplementation on changes in patellar tendon (PT) properties after 10 weeks’ training in female soccer players from a Football Association Women’s Super League Under 21s squad. We pair-matched n=17 players (age: 17±0.9 years; height: 1.66±0.06m; mass: 58.8±8.1kg) for baseline knee extensor (KE) maximum isometric voluntary contraction (MIVC) torque, age, height, and body mass, and randomly assigned them to collagen (COL) or placebo (PLA) groups (COL n=8, PLA n=9). Participants consumed 30g collagen hydrolysate supplementation or energy-matched PLA (36.5g maltodextrin, 8.4g fructose) and plus both groups consumed 500mg vitamin C, after each training session, which comprised bodyweight strength-, plyometric- and/or pitch-based exercise 3 days/week for 10 weeks in-season. We assessed KE MIVC torque, vastus lateralis muscle thickness and PT properties using isokinetic dynamometry and ultrasonography before and after 10 weeks’ soccer training. KE MIVC torque, muscle thickness and tendon cross-sectional area did not change after training in either group. However, COL increased PT stiffness (COL, +18.0±12.2 % [d=1.11] vs. PLA, +5.1±10.4 % [d=0.23], P=0.049) and Young’s modulus (COL, +17.3±11.9 % [d=1.21] vs. PLA, +4.8±10.3 % [d=0.23], P=0.035) more than PLA. Thus, 10 weeks’ in-season soccer training with COL increased PT mechanical and material properties more than soccer training alone in high-level female soccer players. Future studies should investigate if collagen hydrolysate supplementation can improve specific aspects of female soccer performance requiring rapid transference of force, and if it can help mitigate injury risk in this under-researched population.

Item Type:	Article
Uncontrolled Keywords:	0606 Physiology; 1116 Medical Physiology; 1701 Psychology
Subjects:	R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions:	Sport & Exercise Sciences
Publisher:	Frontiers Media S.A.
SWORD Depositor:	A Symplectic
Date Deposited:	27 Jan 2023 09:28
Last Modified:	27 Jan 2023 09:30
DOI or ID number:	10.3389/fphys.2023.1089971
URI:	https://researchonline.ljmu.ac.uk/id/eprint/18739

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