Donaldson N, Yu C
Department of Medical Physics and Bioengineering, University College London, U.K.
IEEE Trans Rehabil Eng. 1998 Jun;6(2):162-7. doi: 10.1109/86.681181.
Many paraplegics can stand up if their leg extensor muscles are stimulated without feedback to the stimulator-controller. Their neurologically-intact upper bodies control the motion by exerting forces through the arms. To develop stimulator-controllers, we wish to understand the strategy they use. In two subjects, we measured the handle forces and the posture during standing up. Plotted so as to relate the handle forces to the leg joints, the results show that the upper body helps extend the knees and then the hips: a strategy we call quick knee-locking. This may keep the upper body forces within the limits of its strength.
如果在没有向刺激器-控制器反馈的情况下刺激截瘫患者的腿部伸肌，许多截瘫患者能够站立起来。他们神经功能完好的上半身通过手臂施加力量来控制动作。为了开发刺激器-控制器，我们希望了解他们所采用的策略。在两名受试者身上，我们测量了站立过程中的手柄力和姿势。将结果绘制出来以便将手柄力与腿部关节联系起来，结果表明上半身会先帮助伸展膝盖，然后是臀部：我们将这种策略称为快速锁膝。这可能会使上半身的力量保持在其力量极限范围内。
