Author(s): ZHANG, P., Institution: BEIJING SPORT UNIVERSITY, Country: CHINA, Abstract-ID: 432

INTRODUCTION:
In recent years, the recessive obesity has become one of the most easily ignored health problems, among which recessive obesity in females is the more prominent. Based on the similarities between the response mechanism of maximal fat oxidation intensity in exercise and the body response mechanism caused by blood flow restriction(BFR), this paper probes into the effect of maximal fat oxidation intensity exercise combined with BFR on the improvement of body composition and blood lipids in recessive obese women, to provide a new idea of saving time for effective fat reduction, improve their health status and quality of life, and reduce the risk of cardiovascular diseases.
METHODS:
After recruitment and screening, thirty recessive obese women(20.8±2.4yrs) participated in the study that was approved by IRB at Beijing Sport University. They were randomly divided into three groups, the maximal fat oxidation intensity exercise(FATmax), the maximal fat oxidation intensity exercise union together with BFR(FATmaxBFR) and the control(CON) groups. Baseline indicators were measured for all participants, including body morphology, body composition(DXA), fasting blood lipids, and VO2max. The FATmax group carried out 50min of personalized FATmax exercise intervention, the FATmaxBFR group carried out 30min of personalized FATmax exercise intervention under the condition of wearing BFR equipment; the CON group did not carry out any exercise intervention. The exercise intervention cycle is eight weeks, four times a week, and the exercise mode is walking and running on the treadmill.
RESULTS:
(1) After intervention, participants in FATmax group had significant reductions in the body weight(3.16±1.54kg), BMI(1.19±0.60kg/m2) and body fat percentage(1.68±1.53%) compared to before intervention(P<0.01). There was no significant difference in changes of body weight, BMI and percentage of body fat after intervention compared to before intervention in FATmaxBFR group. (2) The FATmax group demonstrated significantly decreased systolic blood pressure compared to before intervention(6.80±6.68mmHg, P<0.05), and the decrease of systolic blood pressure in FATmax group was significantly greater than that in FATmaxBFR group(P<0.05). There was no significant change in blood pressure in FATmaxBFR group. (3) After intervention, participants in FATmaxBFR group had significant declines in level of serum triglyceride(0.46±0.61mmol/L, P<0.05). There was no significant change in blood lipid indicators in FATmax group.
CONCLUSION:
Eight-week maximal fat oxidation intensity exercise can effectively reduce body fat and improve body composition of recessive obese women, and reduce the systolic blood pressure of quiet state. The exercise mode of eight -week maximal fat oxidation intensity combined with KAATSU training failed to diminish the body fat of recessive obese women within the limited time of 30 minutes, but could effectively reduce the level of serum triglyceride under this condition.