Mentiplay Benjamin F, Adair Brooke, Bower Kelly J, Williams Gavin, Tole Genevieve, Clark Ross A
Faculty of Health Sciences, Australian Catholic University , Melbourne , Australia .
Brain Inj. 2015;29(4):409-22. doi: 10.3109/02699052.2014.995231. Epub 2014 Dec 30.
The aim of this systematic review was to identify literature examining associations between isometric strength and gait velocity following stroke.
An electronic search was performed using six online databases. Targeted searching of reference lists of included articles and three relevant journals was also performed. Two independent reviewers identified relevant articles, extracted data and assessed the methodological quality of included articles. Inclusion criteria involved studies that assessed univariate correlations between gait velocity and isometric strength of individual lower limb muscle groups in a stroke population.
Twenty-one studies were included for review. The majority of included studies had a relatively small sample size. After accounting for sample size and methodological quality, the knee extensors showed poor-to-moderate correlations with gait velocity while the ankle dorsiflexors showed the strongest association with gait velocity.
Current evidence suggests that the strength of the ankle dorsiflexors has a stronger correlation to gait velocity compared with other lower limb muscle groups. Consequently, a focus on increasing ankle dorsiflexor strength to improve gait velocity following stroke may be beneficial. However, due to limitations of the research identified, further research is needed to determine the associations between lower limb strength and gait velocity following stroke.
本系统评价的目的是识别有关研究中风后等长肌力与步态速度之间关联的文献。
使用六个在线数据库进行电子检索。还对纳入文章的参考文献列表和三本相关期刊进行了针对性检索。两名独立评审员识别相关文章、提取数据并评估纳入文章的方法学质量。纳入标准包括评估中风人群中步态速度与单个下肢肌肉群等长肌力之间单变量相关性的研究。
纳入21项研究进行综述。大多数纳入研究的样本量相对较小。在考虑样本量和方法学质量后，膝关节伸肌与步态速度的相关性较差至中等，而踝关节背屈肌与步态速度的相关性最强。
目前的证据表明，与其他下肢肌肉群相比，踝关节背屈肌的力量与步态速度的相关性更强。因此，中风后专注于增加踝关节背屈肌力量以提高步态速度可能有益。然而，由于所识别研究的局限性，需要进一步研究以确定中风后下肢力量与步态速度之间的关联。
