成年男性场地不同强度负重步行时的能量消耗特征研究

doi:10.15942/j.jcsu.2021.03.018

Abstract

Abstract: Objective: To discuss and analyze the characteristics of energy consumption of male adults during walking with different loads and different speeds on the designated groud. Methods: 42 male adults were divided into normal weight group and overweight group according to body mass index (BMI). Measurement: (1) Energy consumption at rest; (2) energy consumption without loads during walking on the site; (3) energy consumption during walking (load in the form of backpack). The walking speeds were: 4.0, 5.0, and 6.0 km/h, and the loads during walking were: 0, 1, 2, 3, 4, and 5 kg. Results: There were significant differences in the net energy consumption and energy consumption between overweight group and normal weight group during walking at a speed of 5.0 km/h, a load of 2 kg, and a speed of 4.0 km/h, and loads of 0, 1.0, 3.0 and 4.0 kg, overweight males were significantly higher than the normal weight males (P<0.05); during walking with increasing load at the same speed, heart rate, oxygen uptake, net energy consumption and energy consumption in the two groups did not increase significantly; during walking with the same load at increasing speed, heart rate, oxygen uptake, net energy consumption and energy consumption in the two groups increased significantly (P<0.05). Conclusion: speed has greater influence on energy consumption during walking than weight. When walking is used as the form of exercise, speed can be used as the main factor, and weight a secondary factor for load-bearing walking, thereby improving the body's energy metabolism rate, increasing oxygen consumption, and producing positive physiological change in enhancing the body's respiratory and circulation functions.

Key words: energy consumption, walking on the ground with load, overweight, male adults

CLC Number:

G804.27

HE Meiting, ZHANG Peizhen, HONG Ping. The Study on Energy Consumption Characteristics of Male Adults with Different Intensity and Loads during Walking on the Ground[J]. Journal of Chengdu Sport University, 2021, 47(3): 113-119.

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The Study on Energy Consumption Characteristics of Male Adults with Different Intensity and Loads during Walking on the Ground

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