Energy Expenditure Of Overweight Adult Women During Walking And Jogging

Purpose: The aim of this investigation was to compare energy expenditure of overweight adult women during walking and jogging, guiding overweight adult to choose movement and intensity. Methods: Subjects were divided into overweight group (n=11) and normal weight group(n=8). Use a whole body DXA scanner to measure body composition. Maximal oxygen consumption was measured during a continuous treadmill test. Measure resting energy expenditure by Cortex MetaNfax 3B portable gas metabolism system. The walking protocol consisted of six minutes at the following speeds: 4.0 km/h, z1. 1, km/h, 5. 0 km/h, 5. 5 km/h, 6. 0 km/h, 6. 5 km./h, and 7. 0 km/h. The jogging protocol consisted of six minutes at the following speeds: 6. 0 km/h; 7. 0 km/h and 8: 0 km/h. Subject worn Cortex MetaMax 3B portable gas metabolism system during walking and running. Finally, net energy expenditure was calculated. Results: (1)Walking oxygen consumption of overweight and normal weight groups was significantly lower than running at speed 6. () km/h (P<0. 05) ; Walking oxygen consumption of overweight group was sign i E’i cintly higher than running at, speed of 7.0 km/h (P< 0.05) . (2)Walking net energy expenditure and energy expenditure of overweight and normal weight groups were significantly lower than running at speed 6.0 km/ h C P < 0.05) ; Walking :net energy expenditure, energy. expenditure and energy consumption; per unit weight of overweight and normal weight groups were significantly higher than running at. speed 7.0 km;/h (P<0.05) ; Walking energy expenditure and net energy expenditure of overweight group was significantly higher than normal weight group at: speeds > 5.5 km/h (P<005) ; Running net energy expenditure and energy expenditure of overweight group were significantly higher than normal weight group at speeds : 7.0 km/h (P<0.05 i . (3) Walking heart rate of overweight and normal weight gr-(I)ups was significantly higher than running at speed 7.0 km/h (P<0.05) . (4) Walking rating of perceived exertion of overweight group and normal weght groups was signticantJ.y higher than running’’ at speed 7.0 km/h’ (P<O.05) . Conclusion’: (I)Walking net energy expenditure; energy consumption per unit` weight; heart’’ rate and’ RPE=of overweight. adult and normal- weight adult are higher than running at speed 7: 0 km/h, meaning energy expenditure of walking is ,higher than running. (’?)Running net energy expenditure of overweight adult and normal weight adult is higher than walking at speed 6.0 km/h, meaning energy expenditure of running: is higher than walking. (3)Walking energy expenditure and net energy expenditure of overweight adult are higher than normal weight adult at speeds > 5.5km/h; Running energy expenditure and net energy expenditure of overweight adult are higher ,than normal weight adult at speeds ’l 7.Okm/h.