High Intensity Interval Training on the Function of Cardiopulmonary Endurance in Rats

To investigate the effect of high intensity interval training on the function of cardiopulmonary endurance in rats. 10 rats were randomly selected from 30 rats as the HIIT group (Group C). Through the training of HIIT intervention, 10 rats were randomly selected as the natural aging group (group B), the remaining 10 rats were in the control group (group A). Group A and B did not intervene. The changes of cardiopulmonary function, aerobic capacity index VO2max, body weight, heart rate and exhausted exercise time were observed, combined with the relevant literature, the use of logical analysis, and finally statistical analysis of the data. In terms of body weight, the body weight of rats increased continuously during the 9-week-old period, which was significantly higher than the initial body weight from the first week (P < 0.05). In the aspect of exhausting exercise time, compared with group B, the exhausting time of HIIT intervention in 5 and 9 weeks in group C was significantly higher than that in group B (P < 0.05). In the aspect of maximum oxygen carrying capacity, VO2max decreased by 24.9% in group C and 41.8% in group B. In terms of heart rate reserve changes, after 9 weeks of exercise intervention, the effect of increasing heart rate reserve is very significant. Aging can lead to weight gain and decrease of cardiopulmonary endurance. High intensity interval training can significantly improve cardiopulmonary endurance. Keywords: High Intensity Interval Training, Cardiopulmonary Endurance, Cardiopulmonary Function, Sports Training