Asymmetrical lower extremity loading early after ACL reconstruction is a significant predictor of asymmetrical loading at the time of return to sport
Mariani, Pier Paolo
Wolters Kluwer Health
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OBJECTIVES: The aim of this study was to examine whether asymmetrical lower limb loading early after anterior cruciate ligament reconstruction (1 mo) can predict asymmetrical lower limb loading at the time of return to sport (6 mos) and whether other early predictors as knee joint range of motion or maximal isometric strength affect this relationship. DESIGN: Ground reaction forces were measured during a sit-to-stand task 1 mo after anterior cruciate ligament reconstruction and a vertical countermovement jump 6 mos after anterior cruciate ligament reconstruction in 58 athletes. Other early postoperative measurements were knee joint range of motion (2 wks, 1 mo, and 2 mos after surgery) and maximal isometric strength of the knee extensor and flexor muscles (2 mos after surgery). Linear regression models were developed using side-to-side limb symmetry index (LSI) of countermovement jump as the dependent variable. RESULTS: LSI of sit-to-stand task 1 mo after surgery was a significant independent predictor of LSI of countermovement jump 6 mos after surgery. After accounting for deficits in knee joint range of motion and LSI of maximal isometric strength (ΔR² = 0.35, P < 0.01), LSI of sit-to-stand task predicted LSI of countermovement jump (ΔR² = 0.14 P < 0.01). CONCLUSIONS: Asymmetrical lower extremity loading 1 mo after anterior cruciate ligament reconstruction is an early predictor of asymmetrical lower extremity loading 6 mos after surgery.
American Journal of Physical Medicine & Rehabilitation;
Labanca L., Laudani L., Menotti F., Rocchi J., Mariani P.P., Giombini A., Pigozzi F. and Macaluso A. (2016) 'Asymmetrical Lower Extremity Loading Early After Anterior Cruciate Ligament Reconstruction is a Significant Predictor of Asymmetrical Loading at the Time of Return to Sport', American Journal of Physical Medicine & Rehabilitation, 95(4), pp.248-55.
This article was published in American Journal of Physical Medicine and Rehabilitation on 01 April 2016, available at http://dx.doi.org/10.1097/PHM.0000000000000369
Cardiff Metropolitan University (Grant ID: Cardiff Metropolian (Internal))
- Sport Research Groups 
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