Different muscle activation patterns, identified during walking, in people with spastic drop-foot
نویسندگان
چکیده
Method Subjects were studied walking on a treadmill. EMG signals from the calf and anterior tibial muscles were recorded and force sensitive foot-switches enabled these to be related to phases of the gait cycle. Ankle movement was recorded using a Penny and Giles electrogoniometer. Normal activation periods for each muscle group were identified as percentiles of the gait cycle. Indices for muscle activation periods were then derived using ratios of integrated EMG during selected periods.
منابع مشابه
Evaluation of a Drop Foot Stimulator FES Intensity Envelope Matched to Tibialis Anterior Muscle Activity during Walking
A “natural” stimulation strategy is proposed based on muscle activation patterns observed in healthy gait. This stimulation approach was tested on a 52-year old hemiplegic drop foot subject who is ten years poststroke using a computer-based FES control system. Dorsiflexion angle range was recorded for the subject while walking without orthosis, walking with the “natural” stimulation approach an...
متن کاملThe effects of functional electrical stimulation on walking in hereditary and spontaneous spastic paraparesis.
OBJECTIVES To investigate in people with spastic paraparesis (SP): 1) the factors contributing to foot drop and reduced toe clearance while walking; 2) short-term effects of bilateral functional electrical stimulation (FES) of the common peroneal nerve. MATERIALS AND METHODS Long term (>0.5 years) users of FES with SP were compared to matched controls (N = 11 per group). Ankle strength and ...
متن کاملمقایسه فعالیت الکتریکی عضلات ساق پا در افراد با پای صاف و پای طبیعی حین راه رفتن روی نوارگردان با سرعتهای مختلف
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It is still widely believed that exaggerated stretch reflexes and increased muscle tone in ankle plantar flexors contribute to reduced ankle joint movement during gait in children with cerebral palsy (CP). However, no study has directly measured stretch reflex activity during gait in these children. We investigated sensory feedback mechanisms during walking in 20 CP children and 41 control chil...
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