Effect Of Different Types Of Body Fat Distribution On EPOC In Young Obese Women

The problem of obesity endangers the health of human being. Different types of body fat distribution are different, and the more abdominal visceral fat content one has, the more obese individual is easier to suffer from metabolic syndrome risk. Some studies have proved that exercise can inhibit the formation and accumulation of abdominal and visceral adipose tissue and its mechanism mainly is to increase energy consumption. The energy consumption of exercise not only include the process of exercise, but also the recovery period after exercise over the rest state.The study on the relationship between oxygen consumption and energy consumption indicates that by measuring the value of oxygen consumption can indirectly determining the value of energy consumption, that is, the former one can reflect the latter to some extent. Recent studies show that, for the total oxygen consumption of exercise, excess post–exercise oxygen consumption (EPOC) accounts for a large proportion which mainly used for fat oxidation, therefore, it is significant to study EPOC on exercise slimming, weight control and the related theory and practice. The practice of exercise slimming indicates that different distribution of body fat has different effect, of which the visceral fat obesity lose faster. Based on the above information, after aerobic exercise, whether there is EPOC difference of different types of body fat distribution on young obese women? So far there has no relevant reports.Purposes:The purpose of this study is to explore different types of body fat distribution have effect on obese young women's aerobic exercise EPOC by moderate intensity quantitative load power exercise. And the result, from the point of energy consumption after exercise, may provide a pioneer way in different effect of slimming and also provide a theoretical basis on exercise prescription for different types of body fat distribution in obese young women, which will have a vital significance for the slimming movement and a positive promotion of human health.Methods:The study objects are the young women which divide into three groups, that is, normal weight, visceral fat and subcutaneous fat and each group has 10 numbers. The exercise mode is 60% VO2max intensity, 50 minutes leg ergometry. The main monitoring indicators include VO2 pre-exercise, exercise and the recovery period(100-minute). RQ, HR, blood pressure and so on, also the values of total amount, time duration and recovery rate of EPOC according to the value of oxygen consumption of recovery period. Furthermore, each group subjects have intravenous blood at different periods of recovery period and prepare serum for testing the value of FFA.Results:①In the resting state, the values of HR, systolic blood pressure, diastolic blood pressure, lung capacity, BMR ,the three groups have no significant difference. And for the FVC index, relative values of BMR, VO2max and MVV, Group V and F are obviously lower than that of Group C(P<0.001,P<0.05),and compared with the former, Group V is the lowest(P<0.05). And for the VO2max absolute and relative values, Group F is significantly higher than that of Group V (P <0.01), while for the value of maximal heart rate (HRmax), Group V is obviously lower than group C (P <0.05). The above indicate that excessive accumlation of fat can have a negative effect on the cardiopulmonary system and aerobic capacity, especially the visceral fat accumulation.②In the resting state, for the value of lipid, the test results of three groups are within normal range. Of them, for the value of TG, Group C is significantly higher than that of Group F(P<0.01),while for the HDL value, lower than Group C and F(P<0.01), and for the values of LDL and VLDL, higher than Group C(P<0.05),which indicates that the accumulation of excessive body fat may have some impact on lipid metabolism ,especially for the effect of visceral fat accumulation on TG and HDL. What's more, for the value of FFA, Group V and F are obviously higher than that of Group C(P<0.001)and Group V is the highest, however, there is no statistic significance. And for the value of RQ, Group F is significantly higher than Group C(P<0.001) and Group V(P<0.05)and compared with the latter, Group V is higher than that of Group C(P<0.01)。The above information indicate that, in the resting state, fat metabolism of the obese subjects are at a decline level and its energy supply is relatively low, but the fat supply of visceral obesity is higher than that of subcutaneous fat, and the explanation may be, compared with subcutaneous fat, due to visceral fat is easier to break up.③During the exercise, the values of heart rate, VO2 and RQ are maintain at a certain level, and for the HR value, after 40-minute exercise, Group C is on the decline, while Group F and V are otherwise. And during the initial recovery period,(AS0 ~ AS5) ,the values of HR and VO2 present a down trend, which also for RQ. Further, from AS5 to recovery phase, the HR and VO2 values are on a slightly downward trend and the RQ of this phase doesn't change significantly, that is, Group C and V are maintain at 0.7 to 0.8,of which Group F is the highest.④During the AS0 ~ AS5 recovery phase, for the relative value of total EPOC, Group C is the highest(P <0.001, P <0.01),and its recovery rate, Group V and F are obviously lower than that of Group C ( P<0.01,P<0.05),compared with the former, Group V is the lowest(P<0.05).And from AS5 to recovery phase, for the total EPOC and its relative value, Group C is obviously than the two obesity groups(P<0.001), of which Group V is significantly higher than Group F(P<0.001).Further, during the entire process of recovery, for the values of EPOC duration and its total amount, EPOC total relative value, the excess energy consumption after exercise, there are obvious difference, specifically, Group F is significantly lower than Group V(P<0.001)and Group C is the most(P<0.001).And for the EPOC recovery rate, Group C and V are lower than Group F(P<0.001),which indicates that, for the body metabolism after exercise, the fat groups are lower than Group C, and there is difference between the two obesity groups, that is, Group V is higher, which may be explained as the subcutaneous fat is easier to mobilize.Conclusions:①For the obesity young women, excessive fat accumulation may have a negative effect on their cardiopulmonary system and aerobic capacity, especially for the visceral fat obesity young women under the same body fat circumstances.②In the same body fat circumstances, the higher visceral fat one has, the more risk of abnormal blood lipids obesity young women have, particularly for the triglycerides and high density lipoprotein.③During the exercise of 60% VO2max intensity, 50 minutes leg ergometry, for the values of EPOC total amount and its time duration, the obese young women are lower. In the same body fat circumstances, for the values of EPOC total amount and its time duration, the visceral fat obesity young women are higher than that of subcutaneous fat.④It is advisable for the obesity, within the acceptable scope of exercise intensity, to consume more energy, which may lead to enhancement of EPOC and energy consumption after exercise, to reach to the desired results.