Biceps femoris long head muscle and aponeurosis geometry in males with and without a history of hamstring strain injury
Journal article
Lazarczuk, Stephanie L., Collings, Tyler J., Hams, Andrea H., Timmins, Ryan Gregory, Opar, David, Edwards, Suzi, Shield, Anthony, Barrett, Rod and Bourne, Matthew. (2024). Biceps femoris long head muscle and aponeurosis geometry in males with and without a history of hamstring strain injury. Scandinavian Journal of Medicine and Science in Sports. 34(4), pp. 1-11. https://doi.org/10.1111/sms.14619
Authors | Lazarczuk, Stephanie L., Collings, Tyler J., Hams, Andrea H., Timmins, Ryan Gregory, Opar, David, Edwards, Suzi, Shield, Anthony, Barrett, Rod and Bourne, Matthew |
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Abstract | Objectives: Hamstring strain injuries (HSIs) commonly affect the proximal biceps femoris long head (BFlh) musculotendinous junction. Biomechanical modeling suggests narrow proximal BFlh aponeuroses and large muscle-to-aponeurosis width ratios increase localized tissue strains and presumably risk of HSI. This study aimed to determine if BFlh muscle and proximal aponeurosis geometry differed between limbs with and without a history of HSI. Methods: Twenty-six recreationally active males with (n = 13) and without (n = 13) a history of unilateral HSI in the last 24 months underwent magnetic resonance imaging of both thighs. BFlh muscle and proximal aponeurosis cross-sectional areas, length, volume, and interface area between muscle and aponeurosis were extracted. Previously injured limbs were compared to uninjured contralateral and control limbs for discrete variables and ratios, and along the relative length of tissues using statistical parametric mapping. Results: Previously injured limbs displayed significantly smaller muscle-to-aponeurosis volume ratios (p = 0.029, Wilcoxon effect size (ES) = 0.43) and larger proximal BFlh aponeurosis volumes (p = 0.019, ES = 0.46) than control limbs with no history of HSI. No significant differences were found between previously injured and uninjured contralateral limbs for any outcome measure (p = 0.216–1.000, ES = 0.01–0.36). Conclusions: Aponeurosis geometry differed between limbs with and without a history of HSI. The significantly larger BFlh proximal aponeuroses and smaller muscle-to-aponeurosis volume ratios in previously injured limbs could alter the strain experienced in muscle adjacent to the musculotendinous junction during active lengthening. Future research is required to determine if geometric differences influence the risk of re-injury and whether they can be altered via targeted training. |
Keywords | magnetic resonance imaging; muscle-tendon unit size; tendon; volume |
Year | 01 Jan 2024 |
Journal | Scandinavian Journal of Medicine and Science in Sports |
Journal citation | 34 (4), pp. 1-11 |
Publisher | John Wiley & Sons, Inc. (US) |
ISSN | 0905-7188 |
Digital Object Identifier (DOI) | https://doi.org/10.1111/sms.14619 |
Web address (URL) | https://onlinelibrary.wiley.com/doi/10.1111/sms.14619 |
Open access | Published as ‘gold’ (paid) open access |
Research or scholarly | Research |
Page range | 1-11 |
Publisher's version | License File Access Level Open |
Output status | Published |
Publication dates | |
Online | 04 Apr 2024 |
Publication process dates | |
Accepted | 13 Mar 2024 |
Deposited | 22 May 2024 |
Additional information | © 2024 The Authors. Scandinavian Journal of Medicine & Science In Sports published by John Wiley & Sons Ltd. |
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | |
Queensland Academy of Sport's Centre for Sport Performance, Innovation and Knowledge Excellence (SPIKE) | |
Place of publication | Denmark |
https://acuresearchbank.acu.edu.au/item/907z7/biceps-femoris-long-head-muscle-and-aponeurosis-geometry-in-males-with-and-without-a-history-of-hamstring-strain-injury
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OA_Timmins_2024_Biceps_femoris_long_head_muscle_and.pdf | |
License: CC BY 4.0 | |
File access level: Open |
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