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Comparative Analysis of Integrated EMG Activity in Lower Extremity Muscles during Different Phasing Conditions

This study examines the relative change in integrated electromyography (EMG) activity across seven muscles in the lower extremities among eight subjects. The data, averaged across six cycles, were normalized to the mean of integrated EMG activity in four phasing conditions. Significant differences were observed between the muscles across the phases. Authors: Ming Wu, PhD, et al.

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Comparative Analysis of Integrated EMG Activity in Lower Extremity Muscles during Different Phasing Conditions

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  1. Relative change in integrated electromyography (EMG) activity of seven muscles: tibialis anterior (TA), medial gastrocnemius (MG), soleus (SOL), vastus medialis (VM), rectus femoris (RF), medial hamstrings (MH), and adductors (ADD) for eight subjects. Data were averaged across six cycles and normalized to mean of integrated EMG activity across four phasing conditions: phase 0, hip and knee joints are in same phase; phase 0.50, hip and knee joints are out of phase; phase 0.25, hip is 1/4 cycle (90°) earlier than knee joint; phase 0.75, hip is 1/4 cycle (90°) later than knee joint. Data represent mean ± standard deviation. *Significant difference (p < 0.05). Ming Wu, PhD; et.al

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