Value of precision exercise prescription based on cardiopulmonary exercise testing in guiding exercise of obese patients and its safety

Objective To investigate value of precision exercise prescription based on cardiopulmonary exercise testing in guiding exercise of obese patients and its safety.

Methods A total of 172 obese patients were divided into two groups by random number table method. The control group (n=85) was given corresponding exercise according to their own preferences and tolerance, and the observation group (n=87) was given individualized exercise prescription for precise exercise intervention based on the results of cardiopulmonary exercise test. After 6 months of exercise, the exercise effects of patients were evaluated, and the differences in results of cardiopulmonary exercise test, exercise ability, blood lipid level, body-weight related indicators, compliance and exercise safety were compared between the two groups.

Results After 6 months of exercise, the anaerobic threshold(AT), peak oxygen consumption (V_{O2 peak}), and peak oxygen pulse during cardiopulmonary exercise testing in the observation group were higher than those in the control group (P < 0.05). The 6 min walking distance (6MWD) and high density lipoprotein cholesterol (HDL-C) were higher than those of the control group, total cholesterol (TC), triglyceride (TG) and low density lipoprotein cholesterol (LDL-C) were lower than those of the control group (P < 0.05). After 6 months of exercise, the body mass index (BMI), waist circumference and hip circumference of the observation group were lower than those of the control group, the compliance of exercise, diet following the doctor's advice and regular reexamination after 6 months of exercise were higher than those of the control group, and the incidence rates of hypoglycemia, precardiac discomfort and hunger were lower than those of the control group, and the differences were statistically significant (P < 0.05).

Conclusion The prescription of precision exercise based on cardiopulmonary exercise testing for exercise guidance in obese patients is helpful for improving patients' cardiopulmonary function and exercise capacity, regulate patients' blood lipids, reduce body weight related indexes, have higher exercise safety and compliance.