Electromyographic study of the trapezius and deltoideus in elevation, lowering, retraction and protraction of the shoulders.
作者信息
Campos G E, De Freitas V, Vitti M
机构信息
Department of Anatomy, Institute of Biology, UNICAMP, Campinas, São Paulo.
出版信息
Electromyogr Clin Neurophysiol. 1994 Jun;34(4):243-7.
PMID:8082611
Abstract
The electromyographic activity of the trapezius and deltoideus was analyzed using a 2-channel TECA TE4 electromyograph and needle electrodes in 16 male volunteers in the following movements of the shoulders elevation, lowering, protraction and retraction. The superior portion of the trapezius was active in the elevation and lowering of the shoulders. The middle and inferior portions were active in retraction. The deltoideus was practically inactive in all these movements.
摘要
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