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Kellis, E, Sahinis, C and Baltzopoulos, V (2022) Is hamstrings-to-quadriceps torque ratio useful for predicting anterior cruciate ligament and hamstring injuries? A systematic and critical review. Journal of Sport and Health Science, 12 (3). pp. 343-358. ISSN 2095-2546
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Abstract
Background: For the past 30 years, the hamstring (H)-to-quadriceps (Q) torque ratio (H:Q) has been considered an important index of muscle strength imbalance around the knee joint. The purpose of this systematic review has been to examine the value of H:Q torque ratio as an independent risk factor for hamstring and anterior cruciate ligament (ACL) injuries.
Methods: Database searches were performed to identify all relevant articles in PubMed, MEDLINE, Cochrane Library, and Scopus. Prospective studies evaluating the conventional (concentric H:Q), functional (eccentric H: concentric Q), and mixed (eccentric H at 30°/s: concentric Q at 240°/s) H:Q ratios as risk factors for occurrence of hamstring muscle strain or ACL injury were considered. Risk of bias was assessed using the Quality In Prognosis Studies tool.
Results: Eighteen included studies reported 585 hamstrings injuries in 2945 participants, and 5 studies documented 128 ACL injuries in 2772 participants. Best evidence synthesis analysis indicated that there is very limited evidence that H:Q strength ratio is an independent risk factor for hamstring and ACL injury, and this was not different between various ratio types. Methodological limitations and limited evidence for ACL injuries and some ratio types might have influenced these results.
Conclusion: The H:Q ratio has limited value for the prediction of ACL and hamstring injuries. Monitoring strength imbalances along with other modifiable factors during the entire competitive season may provide a better understanding of the association between H:Q ratio and injury.
| Item Type: | Article |
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| Uncontrolled Keywords: | ACL; Isokinetic; Prospective; Strains; Strength imbalance; 1106 Human Movement and Sports Sciences |
| Subjects: | R Medicine > RC Internal medicine > RC1200 Sports Medicine |
| Divisions: | Sport & Exercise Sciences |
| Publisher: | Elsevier BV |
| SWORD Depositor: | A Symplectic |
| Date Deposited: | 01 Mar 2023 12:24 |
| Last Modified: | 23 May 2023 09:45 |
| DOI or ID number: | 10.1016/j.jshs.2022.01.002 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/19006 |
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