Takaki Kenji, Kusumoto Yasuaki
Department of Physical Therapy, Faculty of Health Sciences, Mejiro University: 320 Ukiya, Iwatsuki-shi, Saitama city, Saitama 339-8501, Japan.
Department of Physical Therapy, Faculty of Health Sciences, Tokyo University of Technology, Japan.
J Phys Ther Sci. 2017 Oct;29(10):1784-1787. doi: 10.1589/jpts.29.1784. Epub 2017 Oct 21.
[Purpose] Lower extremity strength is a contributing factor to energy efficiency of gait. However, this contribution has not previously been evaluated in children with hemiplegic cerebral palsy (CP). The aim of this study was to evaluate the association between energy consumption, measured by the physical cost index (PCI), and strength of lower extremity, measured by the maximum knee extensor strength (MKES), in children with hemiplegic CP. [Subjects and Methods] Subjects were 10 children (4 males and 6 females; age, 7-17 years) with hemiplegic CP, but no history of orthopedic intervention or botulinum toxin treatment over the 1 year prior to the assessment. The PCI was measured during a 6-min walk test, and MKES using hand-held dynamometry, with the highest of two measures used for analysis. [Results] A negative correlation was identified between the PCI and MKES (R-value, -0.81 (affected) and -0.83 (unaffected) lower limb). [Conclusion] Higher lower extremity strength was associated with lower fatigability during a 6-min walk test in children with hemiplegic CP, providing evidence for the inclusion of strengthening exercises for both the affected and unaffected extremities in the rehabilitation of these children.
[目的] 下肢力量是步态能量效率的一个影响因素。然而，此前尚未在偏瘫型脑瘫（CP）患儿中评估这种影响。本研究的目的是评估在偏瘫型CP患儿中，通过身体消耗指数（PCI）测量的能量消耗与通过最大伸膝力量（MKES）测量的下肢力量之间的关联。[对象与方法] 研究对象为10例偏瘫型CP患儿（4例男性，6例女性；年龄7 - 17岁），在评估前1年无骨科干预或肉毒杆菌毒素治疗史。在6分钟步行测试期间测量PCI，并使用手持测力计测量MKES，取两次测量中的最高值进行分析。[结果] 在PCI与MKES之间发现负相关（相关系数，患侧下肢为 - 0.81，健侧下肢为 - 0.83）。[结论] 在偏瘫型CP患儿的6分钟步行测试中，较高的下肢力量与较低的疲劳度相关，这为在这些患儿的康复中对患侧和健侧肢体都进行强化训练提供了依据。
