目的观察脑瘫儿童辅助步行前后的能量消耗。方法2014 年1 月~2015 年10 月，小学1~5 年级学生(对照组，n=21)及在本院康复训练的脑瘫儿童(观察组，n=22)为研究对象，受试者在50 m的步道上连续步行6 min，测定静息心率、步行后心率和步行距离，计算步速、物理消耗指数(PCI)。观察组分别测试用前臂拐和不用前臂拐时各指标。结果与对照组比较，观察组步行距离、步速显著减小(t>10.653, P<0.001)，PCI显著增加(t>4.207, P<0.001)。观察组用前臂拐和不用前臂拐比较，运动后心率、心率差值均显著降低(t=8.389, P<0.001)，步行距离、步速和PCI均降低(t>2.382, P<0.05)。结论前臂拐辅助步行可降低脑瘫儿童的能量消耗。

Objective To observe the energy consumption of children with cerebral palsy before and after assisted walking. Methods From January, 2014 to October, 2015, 21 children in primary school of Grades 1~5 (control group) and 22 children with cerebral palsy in our hospital (observation group) were enrolled. They were required to walk in the 50 meters trail for six minutes. The resting heart rate, the walking distance and the heart rate after walking were measured, and the walking speed and the physical consumption index (PCI) were calculated. The observation group was tested with and without forearm crutches. Results Compared with the control group, the walking distance and speed significantly decreased (t>10.653, P<0.001), and the PCI significantly increased (t>4.207, P<0.001) in the observation group. For the observation group without forearm crutches, the heart rate after walking, and the difference of the heart rate significantly decreased (t=8.389, P<0.001), and the walking distance, walking speed and PCI decreased (t>2.382, P<0.05) when they walked with forearm crutches. Conclusion Assisted walking can decrease the energy consumption of children with cerebral palsy.