Influencing Factors of Cardiorespiratory Endurance in Overweight and Obese People in Xizang Region
Objective:To explore the influencing factors of cardiorespiratory endurance in overweight and obese people aged 20～59 years in Xizang.Methods:The data were derived from the part of Tibetan national physical fitness monitoring data for people aged 20～59,and the data of overweight and obese people were screened ac-cording to the obesity standard,yielding an effective sample size of 1 627 cases.The physical fitness test encom-passed body shape,physical function,and physical quality.The t-test and one-way ANOVA were used to com-pare the differences of cardiorespiratory endurance related indexes in each group,and the chi-square test and multiple regression model were used to analyze the factors affecting cardiorespiratory endurance in obese people.Results:In this study,the total detection rate of overweight and obesity among people aged 20～59 years in Lha-sa,Linzhi,and Nagchu regions of Xizang was 33.03％,and the detection rate of overweight/obesity and central obesity was 15.24％＞simple overweight 12.67％＞simple central obesity 4.02％＞simple obesity 1.11％.In Xizang,when comparing cardiorespiratory endurance data of overweight and obese people:simple overweight＞simple central obesity＞simple obesity＞overweight combined with central obesity.Specifically,the cardiorespiratory function related indexes of overweight people are better than other obesity types,and the cardiorespiratory func-tion related indexes of overweight/obese and centrally obese people are lower than other types(all P＜0.05).In Xi-zang,the proportion of overweight and obese people aged 20～59 years with"good"cardiorespiratory endurance was 38.66％＞"excellent"31.04％＞"moderate and below"30.3％.The cardiopulmonary endurance of overweight and obese individuals exhibited a decreasing trend as obesity indices increased.The cardiopulmonary endurance decreased significantly when the BMI was＞25.75 kg/m2,waist circumference was＞94 cm,body fat percentage was＞26.92％,and waist-hip ratio was＞0.93.Cardiorespiratory endurance was significantly negatively correlat-ed with the obesity indexes of BMI(r=-0.24),waist circumference(r=-0.31),body fat percentage(r=-0.89),and waist-to-hip ratio(r=-0.64)(all P＜0.01),with a greater negative effect of body fat percentage on cardiorespirato-ry endurance(χ2=260.05,P＜0.01).Cardiorespiratory endurance was significantly affected by gender,age,type of obesity and physical activity factors in obese Tibetans.In the"excellent"category,age 40～59,simple obesity,simple central obesity,and overweight/obesity with central obesity were negatively associated with"excellent"cardiorespiratory endurance;male,occasional exercise,and regular exercise were negatively associated with"ex-cellent"cardiorespiratory endurance;and male,occasional exercise,and regular exercise were positively associ-ated with"good"cardiorespiratory endurance."Excellent"was positively correlated with male,occasional exer-cise,and regular exercise(all P＜0.05).Regular exercise(OR=7.42,95％CI:4.95～11.09)had a greater effect on cardiorespiratory endurance being"good",and gender(OR=16.64,95％CI:11.79～23.47)had a greater effect on cardiorespiratory endurance being"excellent".Conclusion:Cardiorespiratory endurance in overweight and obese people aged 20～59 years in Xizang was significantly affected by gender,age,type of obesity and physical activity:negatively correlated with age and obesity;and positively correlated with male and physical activity.Regular physical activity(30min/d,3d/week or more)had a positive effect on the improvement of cardiorespirato-ry endurance in the obese Tibetan population.Obesity-related indexes were all negatively correlated with cardio-respiratory endurance,with body fat percentage having a greater negative effect on cardiorespiratory endurance.
Tibetanoverweight and obesityexercisecardiorespiratory enduranceinfluencing factors
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