Exercise intervention, Cardiovascular function, Energy metabolism assessment, Maximum oxygen uptake, Sports physiology, Sports medicine, RC1200-1245

Abstract Objective To analyze the effects of different track and field events on human cardiovascular function and physiological energy metabolism. Method The research subjects were ordinary male students majoring in physical education at a certain university, aged between 18 and 25 years old. A total of 42 people were divided into four sub sample groups: sprint group (10 people), jump group (10 people), long-distance running group (10 people), and regular student group (12 people). The COSMED K5 portable gas metabolism analysis system was used to measure cardiopulmonary function, and key indicators such as Maximum Oxygen Uptake (VO2max) were evaluated using a Stepwise Increasing Load Test (SILT). The two factor repeated measures ANOVA method was used to analyze the effects of different load levels and groups on cardiopulmonary function and energy metabolism. Result The weight, systolic blood pressure, and diastolic blood pressure of different populations were not statistically significant in a quiet state (p > 0.05). The waist to hip ratios of the short-distance and long-distance running teams were 0.75 ± 0.03 and 0.76 ± 0.03, respectively, which showed significant differences compared to ordinary students (p 0.05 in the systolic blood pressure index among the four groups of subjects. There was a significant difference (p