Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong (SAR), China.
Disabil Rehabil. 2011;33(23-24):2291-8. doi: 10.3109/09638288.2011.568667. Epub 2011 Apr 7.
To examine the contribution of subjective balance confidence, balance ability, motor impairments and muscle strength to the timed 'Up & Go' (TUG) scores of 78 subjects with chronic stroke using cross-sectional design.
Functional mobility was measured in terms of TUG scores. Balance ability and subjective balance confidence were assessed with the Berg Balance Scale (BBS) and the activities-specific balance confidence (ABC) scale, respectively. Stroke-specific motor impairment and muscle strength of lower extremity were measured using the Fugl-Meyer Motor Assessment lower extremity (FMA-LE) scores and hand-held dynamometer.
We found that the TUG scores had the highest negative correlation with subjective balance confidence. After controlling for use of walking aids, significant partial correlations were identified between the TUG scores and subjective balance confidence and balance ability. Applying linear regression model, the TUG scores showed association with subjective balance confidence and balance ability, independently. The motor impairments and muscle strength, however, were not significant predictors of TUG scores. The whole model could explain 63.0% of the variance in the TUG scores.
Our results support that improving both subjective balance confidence, in addition to functional balance training could be crucial in promoting functional mobility of community-dwelling stroke survivors.
使用横断面设计，研究 78 例慢性脑卒中患者的主观平衡信心、平衡能力、运动障碍和肌肉力量对定时“站起和行走”（TUG）评分的贡献。
以 TUG 评分为标准，评估功能性移动能力；使用 Berg 平衡量表（BBS）和活动特异性平衡信心（ABC）量表评估平衡能力和主观平衡信心；使用 Fugl-Meyer 运动评估下肢（FMA-LE）评分和手持测力计评估脑卒中特异性运动障碍和下肢肌肉力量。
我们发现 TUG 评分与主观平衡信心呈最强负相关。在控制使用助行器后，TUG 评分与主观平衡信心和平衡能力之间存在显著的部分相关性。应用线性回归模型，TUG 评分与主观平衡信心和平衡能力呈独立关联。而运动障碍和肌肉力量则不是 TUG 评分的显著预测因素。该模型总共可以解释 TUG 评分的 63.0%。
我们的研究结果支持，改善主观平衡信心，除了功能性平衡训练外，对于提高社区居住的脑卒中幸存者的功能性移动能力至关重要。
