This paper probes into characteristics of energy consumption and physiology of over‐weight adult women at the same speed gradient of walking and jogging .The subjects were o‐verweight and normal weight adult women .Their maximal oxygen uptake was measured by a maximal treadmill exercise test using a modified Bruce protocol .The resting energy expenditure and the energy expenditure of overground walking and jogging were measured by Cortex porta‐ble gas metabolism system .The overground walking speed from low to high were 4 .0km/h , 4 .5km/h ,5 .0km/h ,5 .5km/h ,6 .0km/h ,6 .5km/h and 7 .0km/h .The overground jogging speed were 6 .0km/h ,7 .0km/h and 8 .0km/h .The duration of each speed was 6 minutes . Net energy expenditure of each speed was calculated as energy expenditure minus resting ener‐gy expenditure .The result showed that when the walking speed over 5 .5km/h (including 5 .5 km/h) and jogging speed over 7 .0km/h (including 7 .0km/h) ,the energy expenditure ,net energy expenditure and heart rate of overweight women were significantly higher than normal weight women (P< 0 .05 ,P<0 .01) .When walking speed was 6 .0km/h ,energy expenditure and net energy expenditure of overweight women were significantly lower than jogging at the speed of 6 .0km/h ( P<0 .05 ,P< 0 .01 ) .However ,when walking speed was 7 .0km/h ,en‐ergy expenditure ,net energy expenditure ,heart rate and RPE of overweight women were sig‐nificantly higher than jogging at the speed of 7 .0km/h ( P< 0 .05 ,P< 0 .01 ) .These results demonstrate that the differences of BMI will result in differentiations of energy consumption and physiological indexes of women when walking and jogging at a certain speed .When speed reach and exceed 7 .0km/h ,walking will consume more energy than jogging .As far as the weight control of overweight people is concerned ,the effect of walking at this speed is better than that of jogging .%探讨超重人群在相同速度梯度下进行健步走和慢跑运动时的能量消耗特征和生理学特点，为指导超重人群控制体重时合理地选择运动强度和运动方式提供参考依据。以超重成年女性和正常体重女性为研究对象，采用改良Bruce跑台测试方案测定其最大摄氧量，采用便携式Cortex 气体代谢仪测定其静息能量消耗及场地健步走和慢跑时的能量消耗，场地健步走的速度从低到高依次为4．0km／h、4．5km／h、5．0km／h、5．5km／h、6．0km／h、6．5 km／h、7．0km／h，场地慢跑的速度包括6．0 km／h、7．0 km／h、8．0 km／h，每级速度运动6 min ，每级速度的能量消耗减去静息能量消耗，即为每级速度健步走或慢跑运动时的净能量消耗。研究发现，当健步走速度≥5．5km／h和慢跑速度≥7．0km／h时，相同速度梯度下超重女性的能量消耗、净能量消耗和 HR都显著高于正常体重女性（ P＜0．05，P＜0．01）；当速度为6．0km／h时，超重女性健步走时的能量消耗和净能量消耗显著低于慢跑（P＜0．05，P＜0．01），而当速度为7．0 km／h时，超重女性健步走时的能量消耗、净能量消耗、HR和RPE都显著高于慢跑（P＜0．05，P＜0．01）。该结果揭示，BMI水平的差异会导致一定速度下健步走和慢跑能量消耗和生理学指标的差异；相同速度的健步走和慢跑运动对运动能量消耗的影响不同，当运动速度达到和超过7．0 km／h以后，与慢跑相比健步走消耗的能量更多，此速度下进行健步走运动将更有利于超重个体控制体重。
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