Kimoto Minoru, Okada Kyoji, Sakamoto Hitoshi, Kondou Takanori, Kawanobe Uki
Department of Physical Therapy, Akita University Graduate School of Health Sciences: 1-1-1 Hondo, Akita 010-8543, Japan.
Department of Medicine, Akita Prefectural Center on Development and Disability, Japan.
J Phys Ther Sci. 2019 Mar;31(3):232-235. doi: 10.1589/jpts.31.232. Epub 2019 Mar 19.
[Purpose] In children with cerebral palsy, despite increases in muscle strength after strengthening, improvements in walking efficiency are inconsistent in previous studies. The purpose of this study was to analyze the relationship between walking efficiency and muscle strength in children with cerebral palsy. [Participants and Methods] Twenty-six children with cerebral palsy participated in this study. Isometric muscle strength in the lower extremities and the Total Heart Beat Index were measured. Participants were divided into the high and low walking efficiency groups based on the median Total Heart Beat Index value (2.06 beats/m). [Results] For all participants, all isometric muscle strength values were significantly correlated with the Total Heart Beat Index. In the high walking efficiency group, there was no significant correlation. All isometric muscle strength values in the low walking efficiency group were significantly correlated with the Total Heart Beat Index, except for that of the hip extensors. [Conclusion] The influence of muscular strength on walking efficiency in children with cerebral palsy varied. Significant correlations were observed only for those in the low walking efficiency group. The walking efficiency level should be confirmed before planning muscle strength training to improve walking efficiency.
[目的] 在脑瘫患儿中，尽管强化训练后肌肉力量有所增加，但以往研究中步行效率的改善并不一致。本研究旨在分析脑瘫患儿步行效率与肌肉力量之间的关系。[参与者与方法] 26名脑瘫患儿参与了本研究。测量了下肢等长肌力和总心跳指数。根据总心跳指数的中位数（2.06次/米）将参与者分为高步行效率组和低步行效率组。[结果] 对于所有参与者，所有等长肌力值均与总心跳指数显著相关。在高步行效率组中，无显著相关性。低步行效率组中，除髋伸肌外，所有等长肌力值均与总心跳指数显著相关。[结论] 肌肉力量对脑瘫患儿步行效率的影响各不相同。仅在低步行效率组中观察到显著相关性。在计划进行肌肉力量训练以提高步行效率之前，应确认步行效率水平。
