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Immediate effects of single-leg stance exercise on dynamic balance, weight bearing and gait cycle in stroke patients

JH Jung, SE Ko, SW Lee (2014)

Objective: This study aimed to identify how various applications of weight bearing on the affected side of hemiplegia patients af-fect the ability of balance keeping of the affected leg and the gait parameters.Design: Cross-sectional study.Methods: Eighteen patients with hemiplegia participated in this study. There were twelve males and six females. This study in-vestigated the effects of the single-leg stance exercise on dynamic balance, weight bearing, and gait ability compared with four conditions. Dynamic balance and weight bearing were measured using the step test (ST) of the affected side in stroke patients. In addition, gait parameters were measured using the optogait system for analysis of the spatial and temporal parameters of walking in stroke patients.Results: This study investigated the effect of the single leg stance exercise on the paralysis side. The ST showed significant find-ings for all conditions (p<0.05). Therefore, knee extension and flexion exercise on the affected side single-leg stance (condition 4) significantly improved dynamic balance and weight bearing on the affected side (p<0.05). In the condition of moving the knee joint in a single-leg stance was discovered that the stance phase time significantly increased more than in the condition of support-ing the maximal voluntary weight on the affected side (p<0.05).Conclusions: Single-leg stance on the paralysis side with knee flexion and extension increased symmetry in weight bearing dur-ing stance phase time. This study suggests that single-leg stance exercises augments improved gait function through sufficient weight bearing in the stance phase of the affected side.

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