腹部脂肪分布对青年肥胖女性有氧功率车运动后过量氧耗的影响

Effect of Abdominal Fat Distribution on EPOC after Aerobic Cycle Ergometer in Obese Young Women

目的:对不同腹部脂肪分布的青年肥胖女性进行60%V.O2max强度定量负荷功率车运动,探讨腹部脂肪分布对青年肥胖女性有氧运动后EPOC的影响。方法:内脏脂肪型肥胖(V组)、皮下脂肪型肥胖(F组)青年女性各10名,进行50min的60%V.O2max强度功率车运动,运动后恢复期,每隔15s记录一次耗氧量、心率、呼吸商等指标,计算EPOC总量及EPOC持续时间。结果:EPOC持续时间、EPOC总量、运动后过量能耗,F组低于V组(P<0.001),F组的.VO2max绝对值和相对值均高于V组(P<0.01),恢复过程中,RQ值V组小于F组,血清FFA的变化趋势两组明显不同。结论:体脂量基本一致情况下,内脏脂肪积累过多与皮下脂肪积累过多相比,内脏脂肪积累过多使EPOC总量增多、EPOC持续时间延长,这可能是内脏脂肪型肥胖者容易减肥的原因之一。

The purpose of this study is to analyze the different abdominal fat distribution on EPOC after 60 %VO2 max aerobic cycle ergometer in young obesity women and explore its causation. Method：The subjects are divided into two groups, one is visceral fat obesity （Group V） and the other is subcutaneous fat obesity （Group F）. Each group has 10 subjects, and the exercise mode is 60 %VO2 max intensity, 50 minutes of aerobic cycle ergometer. The main monitoring indicators include VO2 max, heart rate, respiratory quotient every 15 s during the recover- y period after exercise, also the total EPOC and its duration time. Result ： The values of the to- tal EPOC, its duration time and excess post - exercise energy consumption are obviously lower in Group F than that in Group V（P〈0. 001）. The VO2 max absolute and relative values are significantly higher in Group F than that in Group V（P〈0.01）. Further, the value of RQ is significantly lower in Group V than that in Group F and the changes in serum FFA are obviously different in the two groups. Conclusion： Under the same amount of body fat circumstances, compared with subcutaneous fat obesity, the higher visceral fat one has, the more total EPOC and its duration time, which may explain the phenomenon that the visceral fat obesity are easier to lose weight.