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- W2806681253 abstract "Athletes with history of anterior cruciate ligament (ACL) reconstruction (ACLR) who return to high level of sport are at increased risk of another ACL injury during a game. Neuromuscular fatigue during sport may result in adaptive movement patterns that increase risk of injury. PURPOSE: Compare changes in an ACLR limb and a healthy limb based on fitness level after exercise. METHODS: Thirty-three individuals with history of ACLR (22F/11M, 22.7±23.3 months post-surgery) and 29 healthy individuals (18F/11M) were divided into two groups based on VO2max (higher fit and lower fit). Sagittal, frontal, and transverse knee, hip, and trunk kinematics and triplanar knee and hip internal moments were measured on the involved limb before and after exercise. Data were reduced to 101 points for 0-100% of the gait cycle for kinematics and reduced to 41 points for 0-40% of the gait cycle (stance phase) for kinetics. Change scores were calculated for each 1% with 90% confidence intervals. Significant differences between groups were determined when confidence intervals did not overlap for three or more consecutive points. Mean differences were calculated for all significant differences. RESULTS: Higher fit ACLR demonstrated decreased knee (-3.13°) and hip flexion (-2.14°) and increased trunk flexion (1.59°) and knee abduction (2.79°) compared to healthy individuals after exercise. Higher fit ACLR also demonstrated increased knee flexion moment (0.18Nm/kg) and hip extension moment (0.21Nm/kg) after exercise. Lower fit ACLR demonstrated increased hip adduction (1.48°), knee external rotation (3.57°), hip external rotation (2.87°), and trunk rotation (3.61°) compared to healthy individuals after exercise. Conclusions: Higher fit ACLR demonstrated more sagittal plane changes while lower fit ACLR demonstrated increased transverse plane motion after exercise, suggesting that fitness level should be a consideration when making return to activity decisions after ACLR." @default.
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- W2806681253 date "2018-05-01" @default.
- W2806681253 modified "2023-09-27" @default.
- W2806681253 title "Biomechanical Adaptations After Exercise in Healthy and ACL Reconstructed Individuals" @default.
- W2806681253 doi "https://doi.org/10.1249/01.mss.0000535918.50703.16" @default.
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