Variation of hamstrings lengths and velocities with walking speed
نویسندگان
چکیده
منابع مشابه
Variation of hamstrings lengths and velocities with walking speed.
Crouch gait, one of the most prevalent movement abnormalities among children with cerebral palsy, is frequently treated with surgical lengthening of the hamstrings. To assist in surgical planning many clinical centers use musculoskeletal modeling to help determine if a patient's hamstrings are shorter or lengthen more slowly than during unimpaired gait. However, some subjects with crouch gait w...
متن کاملDo the hamstrings operate at increased muscle-tendon lengths and velocities after surgical lengthening?
Children with crouch gait frequently walk with improved knee extension during the terminal swing and stance phases following hamstrings lengthening surgery; however, the mechanisms responsible for these improvements are unclear. This study tested the hypothesis that surgical lengthening enables the hamstrings of persons with cerebral palsy to operate at longer muscle-tendon lengths or lengthen ...
متن کاملThe role of estimating muscle-tendon lengths and velocities of the hamstrings in the evaluation and treatment of crouch gait.
Persons with cerebral palsy frequently walk with excessive knee flexion during terminal swing and stance. This gait abnormality is often attributed to "short" or "spastic" hamstrings that restrict knee extension, and is often treated by hamstrings lengthening surgery. At present, the outcomes of these procedures are inconsistent. This study examined whether analyses of the muscle-tendon lengths...
متن کاملWalkway lengths for measuring walking speed in stroke rehabilitation.
OBJECTIVES To investigate the effect of walkway length (5, 8 or 10 m) on measurements of comfortable and maximum walking speed. DESIGN A cross-sectional study. SETTING University-based rehabilitation centre. SUBJECTS Patients (n = 25) with chronic stroke. METHODS Timed walking with different walkway lengths (5, 8 and 10 m) walkways were recorded using a stop-watch. RESULTS No signific...
متن کاملThe effect of walking speed on hamstrings length and lengthening velocity in children with spastic cerebral palsy.
Children with cerebral palsy often walk with reduced knee extension in terminal swing, which can be associated with short length or slow lengthening velocity of hamstrings muscles during gait. This study investigated the role of two factors that may contribute to such short and slow hamstrings: walking speed and spasticity. 17 children with spastic cerebral palsy and 11 matched typically develo...
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ژورنال
عنوان ژورنال: Journal of Biomechanics
سال: 2010
ISSN: 0021-9290
DOI: 10.1016/j.jbiomech.2010.01.008