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Unilateral lower limb injury : Its long-term effects on quadriceps, hamstring, and plantarflexor muscle strength
HOLDERPOWELL HM; RUTHERFORD OM
ARCH PHYS MED REHABIL , 1999, vol. 80, n° 6, p. 717-720 Doc n°: 91036 Localisation : Documentation IRR Descripteurs : DE14 - TRAUMATISMES - MEMBRE INFERIEUR
Article consultable sur : http://www.archives-pmr.org
OBJECTIVE: To ascertain if long-term deficits in quadriceps, hamstring, and plantarflexor muscle strength remain after unilateral lower-limb musculoskeletal injury and to quantify whether improvements in performance continue once a subject concludes rehabilitation and returns to everyday activities. The relation between the size of decrement and limb dominance, type of injury, and time since injury was also considered. DESIGN: Isometric and/or dynamic muscle strength of both legs was measured (using the KinCom 500H isokinetic dynamometer) in 48 subjects. SETTING: A physiological laboratory at Brunel University. PATIENTS: Patients were recruited locally via a district general hospital, sports injury clinic, and university. MAIN OUTCOME MEASURES: Muscle strength in the injured limb, reported as a percentage of muscle strength in the uninjured limb. It was assumed that the preinjury state of the injured limb was similar to that of the uninjured limb. RESULTS: Decrements were seen in mean isometric and peak isometric, concentric, and eccentric quadriceps activity (p < .0001) and isometric plantarflexor activity (p < .05) in the injured limb, with the type of injury influencing the size of the decrement. Minimal difference was found in the hamstring muscles. CONCLUSIONS: The decrements in performance in the quadriceps muscle imply that full recovery Langue : ANGLAIS Identifiant basis : 1999206890 |
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