Worringham C J, Stelmach G E
Exp Brain Res. 1985;61(1):38-42. doi: 10.1007/BF00235618.
An experiment is reported which examined whether gravitational torque acting about a joint is used by the CNS in elbow joint angle matching. Subjects were required to match the joint angles of their two limbs while the external torques acting about each elbow were systematically varied. It was found that when the matching limb was differentially loaded, the error in the produced reference angle corresponded to the directional prediction of a proposed gravitational torque hypothesis. The data suggest that torque sensation is an accessory source of information in limb positioning.
本文报道了一项实验，该实验研究了中枢神经系统（CNS）在肘关节角度匹配中是否利用了作用于关节的重力扭矩。要求受试者在系统改变每个肘关节所受外部扭矩的同时，匹配其双上肢的关节角度。结果发现，当匹配的肢体承受不同负荷时，所产生的参考角度误差与所提出的重力扭矩假说的方向性预测相符。数据表明，扭矩感觉是肢体定位信息的一个辅助来源。
