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- Title
IS QUADRICEPS STRENGTH THE KEY FACTOR FOR RTR AFTER ACLR?
- Authors
HARIRI, Badr; HARDY, Alexandre; FORELLI, Florian
- Abstract
Background: Return to run (RTR) after anterior cruciate ligament reconstruction (ACLR) is an important step in the return to previous performance. Generally, postoperative time (12-weeks) help clinicians in RTR decision making but it seems important to recover strength, mobility, functional and psychological qualities to optimize the RTR. Objectives: The aim of this study was to analyze the RTR self-perceived quality with physical, functional and psychological parameters at 6 months after ACLR. Design: Cross-sectional study Methods: This study included 130 patients at 6 months after ACLR. The patients performed the international knee documentation committee (IKDC) subjective knee form, the anterior cruciate ligament - return to sport after injury (ACL-RSI) scale, strength and functional assessment. Limb symmetry index (LSI) and peak torque to body weight ratio (PT/BW) were assessed with isokinetic dynamometer for quadriceps (Q) and hamstring (H) in concentric mode at 60°. s-1, 240°. s-1, and eccentric mode at 30°. s-1. Functional assessment was performed with MyJump app and included knee range of motion (ROM), hop tests (single, triple and triple cross over for distance) and single leg vertical drop jump. All participants were assigned in 2 groups : RTR with pain (G1, 33.6%) and pain-free RTR (G2). Results: G2 showed significantly higher quadriceps PT/BW than G1 (1.8 ± 0.4 N.kg -1 vs. 2.3 ± 0.5, p = 0.05), but similar LSI Q (81.1% ± 14.8; 80.2% ± 15.1 ; p = 0.008). ACL-RSI (p = 0.22) and IKDC (p = 0.43) scores were lower in G1 compared to G2. No significant results were found for ROM and hop tests in both groups. Conclusion: These findings indicate that quadriceps strength seems to be a key performance discriminator to allow for safe RTR. Besides, IKDC and ACL-RSI may help athletes and clinicians in RTR decision making.
- Subjects
NORWAY; ANTERIOR cruciate ligament surgery; SURGERY; PATIENTS; RUNNING; FUNCTIONAL status; CONFERENCES &; conventions; MUSCLE strength; BODY movement; QUADRICEPS muscle; SELF-perception; PATIENTS' attitudes
- Publication
International Journal of Sports Physical Therapy, 2024, Vol 19, Issue 6, p775
- ISSN
2159-2896
- Publication type
Article