Messier Sylvie, Bourbonnais Daniel, Desrosiers Johanne, Roy Yves
School of Rehabilitation, Université de Montréal and Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal, Rehabilitation Institute of Montreal, Canada.
J Rehabil Med. 2005 Jul;37(4):242-6. doi: 10.1080/16501970510026007.
Verify weight-bearing on the feet in a sitting position during pointing in different directions with 1 or both upper limbs.
Comparative study.
Fifteen subjects with post-stroke hemiparesis with good to very good motor recovery and 13 healthy subjects participated in the study.
The subjects were seated on a chair with each foot resting on a force plate. They had to touch with 1 or, simultaneously with both hands, 2 target(s) located in front of them or at a 45 degrees angle on either side at a standardized distance beyond their upper limb's length. The percentage of weight loading variation under each foot was measured.
Weight-bearing on the paretic foot is reduced during unilateral and bilateral pointing in the anterior direction and 45 degrees ipsilateral to the paretic side. However, both unilateral and bilateral pointing 45 degrees contralateral to the paretic side produced symmetrical weight-bearing on both feet, paretic and non-paretic.
Since the paretic muscles of the trunk are probably used to control the leaning of the trunk towards the non-paretic side, the subjects with hemiparesis may put weight on the paretic foot to compensate for trunk weakness and maintain balance.
在单上肢或双上肢向不同方向指物时，验证坐位时足部的负重情况。
对比研究。
15名中风后偏瘫且运动恢复良好至非常好的受试者以及13名健康受试者参与了该研究。
受试者坐在椅子上，每只脚放在一个测力板上。他们必须用一只手或双手同时触碰位于其前方或在其上肢长度之外的标准距离处两侧呈45度角的2个目标。测量每只脚下负重变化的百分比。
在前向及患侧同侧45度方向单上肢和双上肢指物时，患侧足部的负重减少。然而，在患侧对侧45度方向单上肢和双上肢指物时，患侧和非患侧双脚的负重是对称的。
由于躯干的患侧肌肉可能用于控制躯干向非患侧倾斜，偏瘫受试者可能会在患侧足部负重以补偿躯干无力并维持平衡。
