Survey Of The Current Status Of Cardiopulmonary Fitness And Influencing Factors About Sedentary Men In Xi’an City

ObjectivePrevious studies have found that prolonged sedentary behavior induces a variety of disorders.Long-term sedentary behavior leads to slow blood circulation and degradation of myocardial function,which in turn leads to a series of cardiovascular problems.In this study,we recruited sedentary males to describe their cardiopulmonary function and explore its influencing factors.To provide scientific basis for improving cardiopulmonary function and preventing disease in sedentary men.MethodsA total of 125 sedentary people aged 30-55 years in Xi’an were recruited to conduct a questionnaire survey and cardiopulmonary exercise function test to understand the general information and living habits of the population and monitor the changes of cardiopulmonary function during exercise.Peak oxygen uptake per kilogram,metabolic equivalent,peak metabolic equivalent,peak oxygen uptake as a percentage of predicted value,resting systolic blood pressure,resting diastolic blood pressure,and peak oxygen pulse as a percentage of predicted value were included.Age,height,weight and other descriptive statistics were performed.Nonparametric rank sum test was used to compare cardiopulmonary function indexes among different types of subjects,and multiple linear regression analysis was used to analyze basic data and cardiopulmonary indexes.Results（1）The cardiopulmonary function of the subjects was divided into groups according to whether there was a history of cardiovascular disease,and there was a significant difference in age between the two groups（P=0.036）.（2）There was a significant difference in body fat percentage between the two groups（P=0.010）.（3）Subjects were grouped according to whether they had a smoking history or not,and the indexes of cardiopulmonary function with significant differences between the two groups were as follows:Body weight（P<0.01）,BMI（P=0.002）,exercise duration（P<0.01）,Peak VO₂/kg（P=0.002）,static diastolic blood pressure（P=0.002<0.01）,static systolic blood pressure（P=0.002）,Peak VO₂%pred（P=0.002）,Peak O₂pluse%pred（P=0.005）,peak metabolic equivalent（P=0.002）.（4）Subjects were grouped according to family history and cardiopulmonary function.The indicators of significant difference in body weight between the two groups were as follows:Body weight（P<0.01）,BMI（P<0.01）,exercise duration（P<0.01）,Peak VO₂/kg（P<0.01）,static diastolic blood pressure（P<0.01）,static systolic blood pressure（P<0.01）,Peak VO₂%pred（P<0.01）,Peak O₂pluse%pred（P=0.003）,peak metabolic equivalent（P<0.01）.（5）BMI,body fat percentage and exercise duration significantly affected the value of Peak VO₂/kg（P<0.01,P=0.013<0.05）.BMI and body fat percentage were negative factors,while exercise duration was positive factors.（6）BMI,exercise duration and family history significantly affected the value of peak metabolic equivalent（P<0.01,P=0.029）,in which BMI and family history were negative factors,exercise duration was positive factors.（7）BMI,exercise duration and family history had significant effects on Peak O₂pluse%pred（P<0.01,P=0.003）.BMI and family history were negative factors,and exercise duration was positive factors.（8）For Peak VO₂%pred,BMI and exercise duration had significant effects（P<0.01）,in which BMI was a negative factor and exercise duration was a positive factor.（9）The resting systolic blood pressure was significantly affected by BMI,exercise duration and cardiovascular history（P<0.01,P=0.026）.BMI was a positive factor and exercise duration was a negative factor.（10）For resting diastolic blood pressure,BMI,exercise duration and drinking history significantly affected resting diastolic blood pressure（P<0.01,P=0.016,P=0.022）.Among them,BMI and drinking history were positive factors,while exercise duration was negative factors.Conclusions（1）For sedentary people with smoking history,their heart and lung capacity is worse than that of people without smoking history,so more attention should be paid to toba cco smoking control.（2）People with a family history of cardiovascular diseases should develop good exercise habits to reduce the probability of inherited cardiovascular diseases.（3）Higher BMI and less exercise duration are both factors of decreased cardiopulmonary endurance,so sedentary people need to control BMI while increasing exercise duration...