Jungers W L, Stern J T
Science. 1980 May 9;208(4444):617-9. doi: 10.1126/science.7367886.
Electromyographic studies of brachiation in the gibbon controvert deductions, based on dissection, about the purported functions of muscle chains in the hylobatid forelimb. Neither force conduction distally along the components of the chains nor simultaneity of muscular contraction occurs in brachiation. Rather, the unique structure of the forelimb is probably the result of evolved changes in the short head of biceps brachii to enhance its role as a forearm flexor.
长臂猿臂行的肌电图研究对基于解剖学得出的关于长臂猿前肢肌肉链所谓功能的推论提出了质疑。在臂行过程中，力量既不会沿着肌肉链的组成部分向远端传导，肌肉收缩也不会同时发生。相反，前肢的独特结构可能是肱二头肌短头进化变化的结果，以增强其作为前臂屈肌的作用。
