Effects of 24-Form Tai Chi on Cardio-Pulmonary Functions,Exercise Performances, and Cognitive Functions of the Aged

Background: the study aimed to discuss the influences of 24-form tai chi on cardio-pulmonary functions, exercise performances, and cognitive functions of the aged.methods: forty old people in pingdingshan of china were selected through convenient sampling method from 2020 to 2021. they were randomly divided into the observation group (n=20) and the control group (n=20). the observation group exercised 24-form tai chi for 8 weeks, three times per week, 45 min per ses-sion. the respondents were evaluated by cardiopulmonary exercise testing, sitting-standing test, 6-min walking test, and the berg balance scale. the p300 test was performed to evaluate the cognitive functions of respond-ents.results: after the intervention, the observation group was significantly (p<0.05) superior to the control group concerning maximal oxygen consumption, anaerobic threshold, vital capacity, stroke volume (sv), car-diac output (co), left ventricular end-diastolic diameter (lvedd), left end-diastolic velocity (edv), sitting-standing test, 6-min walking test, and the breg balance function scores, showing statistically significant differ-ences (p<0.05). the content of body fat and body mass index (bmi) of the observation group decreased sig-nificantly, whereas muscle mass and fat-free mass increased dramatically, which were however significantly lower than those of the controlled group (p<0.05). moreover, the p3b amplitude of the observation group increased significantly (p<0.05) and was significantly higher than that of the control group (p<0.05).conclusion: the 24-form tai chi not only improves cardio-pulmonary functions and exercise performances of the aged but also increases cognitive functions of the aged.