Anatomical versus functional motor points of selected upper body muscles

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Introduction We aimed to identify nerve entry points (NEP) of superficial skeletal muscles obtained by dissection of 20 human cadavers and to compare those to motor points (MP) previously obtained by electrical stimulation. Methods The biceps brachii- (BB), trapezius (TZ), latissimus dorsi (LD), pectoralis major (Pmaj) and pectoralis minor muscles (Pmin) were dissected from human cadavers. Mean values ±SD of the NEPs of each muscle were calculated. F-tests with Bonferroni corrections were used to compare NEPs and MPs. Results The number of NEPs was two in BB, one in Pmin, four in TZ and three in LD, while the total number in Pmaj varied from three to five. NEPs and MPs were statistically equal only in Pmin and in the descending part of TZ. Discussion These findings show crucial differences between NEPs and MPs, possibly impacting the effectiveness of several medical treatment strategies. This article is protected by copyright. All rights reserved.

Original languageEnglish
JournalMuscle & nerve
Issue number3
Pages (from-to)460-465
Number of pages6
Publication statusPublished - 2018

ID: 3058679


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