Eight Sessions of High Intensity Interval Physical Exercise Lowering the Stomach Circumference of Obese Adult Women Sedenter

Sedentary lifestyle is a lifestyle that is associated with an unhealthy diet and lack of physical activity. The study aimed to analyze high-intensity physical exercise at interval intervals (HIIT) for changes in resting pulse and abdominal circumference in overweight young adult women with sedentary lifestyle. Subject is a lot of 20 people aged 21-30 years into 2 groups. The treatment group by performing HIIT and the control group without performing HIIT. Physical exercise with an intensity of 90% of the axial heart rate (HRmax), at intervals. Exercise is done by pedaling ergocycle for 10 seconds at a speed of 100 rpm and 50 seconds with speed 50 rpm, done alternately (intervals), with a total time of 20 minutes. Exercise is done 3x /week or as many as 8 sessions in 3 weeks. The data in this study was taken before and after treatment, in the form of a resting pulse (HR rest) and stomach circumference (LP) measured in position parallel to the navel. The results showed that there was no significant difference in the average value of HR rest between groups (p≥0.05), while LP indicated that there was a significant decrease in the HIIT group (p<0.05). The conclusion in this study is that HIIT effectively lowers the stomach circumference of the treatment group and also has a tendency to decrease the average HR rest.