Rose J, Gamble J G, Burgos A, Medeiros J, Haskell W L
Children's Hospital at Stanford, Palo Alto, CA 94304.
Dev Med Child Neurol. 1990 Apr;32(4):333-40. doi: 10.1111/j.1469-8749.1990.tb16945.x.
Energy expenditure indices (EEI) based on oxygen uptake and heart rate were used to compare the economy of walking at various speeds by normal and cerebral-palsied children. At low walking speeds, EEI values were high, indicating poor economy. At higher speeds the EEI values decreased until a range of maximum economy was reached. For normal children who were capable of walking beyond this range at higher speeds, the EEI increased again. This pattern was noted for both oxygen-uptake and heart-rate indices. Mean EEI values based on oxygen uptake and heart rate for normal children were significantly lower and occurred at faster walking speeds than values for children with cerebral palsy. EEI based on either oxygen uptake or heart rate can be used clinically to provide objective information to help evaluate the influence on gait function of surgical intervention, ambulatory aids or orthotics.
基于摄氧量和心率的能量消耗指数（EEI）被用于比较正常儿童和脑瘫儿童在不同速度下行走的经济性。在低步行速度时，EEI值较高，表明经济性较差。在较高速度时，EEI值下降，直到达到最大经济性范围。对于能够以更高速度行走超过此范围的正常儿童，EEI再次升高。这种模式在摄氧量和心率指数中均有发现。基于摄氧量和心率的正常儿童的平均EEI值显著更低，且出现在比脑瘫儿童更快的步行速度下。基于摄氧量或心率的EEI可在临床上用于提供客观信息，以帮助评估手术干预、助行器或矫形器对步态功能的影响。
