Differences in psychological readiness for return to sport after anterior cruciate ligament injury is evident in thigh musculature motor unit characteristics

Following anterior cruciate ligament (ACL) injury, many athletes that undergo surgery and 6-9 months of rehabilitation struggle to return to sport. Evidence suggests that psychological factors contribute to this failure to return-to-sport. Determine the motor control relationship between thigh muscu...

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Bibliographic Details
Published in:BMJ Open Sport & Exercise Medicine 2023, Vol.9 (3), p.e001609-e001609
Main Authors: Schilaty, Nathan D, McPherson, April L, Nagai, Takashi, Bates, Nathaniel A
Format: Article
Language:English
Subjects:
Confidence
Data collection
Electromyography
Exercise
Joint and ligament injuries
Knee
Original Research
Rehabilitation
Surgery
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Summary:Following anterior cruciate ligament (ACL) injury, many athletes that undergo surgery and 6-9 months of rehabilitation struggle to return to sport. Evidence suggests that psychological factors contribute to this failure to return-to-sport. Determine the motor control relationship between thigh musculature motor unit characteristics and psychological readiness to return to sport between ACL-injured and healthy controls. A longitudinal cohort study. Athletes longitudinally completed the ACL Return to Sport after Injury (ACL-RSI) survey and isometric strength measures with a measurement of electromyography (EMG) of the vastus lateralis, vastus medialis, biceps femoris, and semitendinosus. A score cut-off of 61 on the ACL-RSI was used to divide ACL-injured groups. EMG was decomposed to provide each identified motor unit's characteristics (amplitude, average firing rate, etc). Data demonstrated increased average firing rate for hamstrings (p
ISSN:2055-7647
2055-7647
DOI:10.1136/bmjsem-2023-001609