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Interlimb asymmetry in persons with and without an anterior cruciate ligament deficiency during stationary cycling
HUNT MA; SANDERSON DJ; MOFFET H
ARCH PHYS MED REHABIL , 2004, vol. 85, n° 9, p. 1475-1478 Doc n°: 115244 Localisation : Documentation IRR Descripteurs : DE54 - TRAUMATISMES - GENOU
Article consultable sur : http://www.archives-pmr.org
Objective: To investigate the power output generation from anterior cruciate ligament (ACL)-injured and noninjured limbs during stationary cycling. Design: Repeated measures. Setting: Research laboratory. Participants: Ten people with unilateral ACL deficiency and 10 uninjured controls matched for age and sex. Interventions: Participants performed 6 randomized bouts of stationary cycling at intensities of 2 cadences (60, 90rpm) and 3 power outputs (75, 125, 175W) for approximately 2 minutes for each bout during a single laboratory visit. Main Outcome Measures: The effective component of force (perpendicular to the crank) was measured and used to calculate the power output contribution from each limb to the total power output. Results: Subjects with ACL injury generated significantly more power from uninjured limbs compared with that from injured limbs and the limbs of control subjects. Conclusions: Results suggest that people with ACL injury have a reduced total output from the injured limb and rely on the uninjured limb for most of the power output. This may compromise the ability to restore lower-limb muscle strength after injury. Langue : ANGLAIS |
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