运动意向及习惯对医学生体重指数影响程度分析

Analysis of the influence of exercise intention and habit on body mass index of medical students

目的:调查我校2018级在校本科医学生的运动意向及习惯对体重指数(BMI)的影响程度。方法:采用问卷调查法,在2018年9月对我校1467名不同专业的医学生的运动习惯、运动意向进行调查,其中有效问卷1395份,结合学生BMI建立多分类Logistic回归模型。结果:低体重男生更倾向于挥拍项目运动(OR=0.329,95%CI:0.114~0.944)。跑步是肥胖男生(OR=0.375,95%CI:0.206~0.681)和肥胖女生(OR=0.412,95%CI:0.233~0.728)的保护因素。肥胖女生(OR=0.620,95%CI:0.423~0.910)相比之下缺乏运动习惯,有氧或体操运动是肥胖男生(OR=0.410,95%CI:0.173~0.973)的保护因素(P<0.05)。结论:影响BMI的运动因素众多,可根据实际情况积极督促低体重男生多做挥拍项目运动,肥胖学生参加跑步、有氧或体操运动等体育锻炼。

Objective:To investigate the effect of exercise intention and habit on body mass index(BMI)of medical undergraduates in grade 2018,and to provide reference for improving students’physical health.Method:In Sep 2018,1467 medical students of different specialties were investigated on their exercise habits and exercise intention by questionnaire,and the logistic regression model was established with BMI as the dependent variable.Results:Low-weight boys were more likely to swing(OR=0.329,95%CI:0.114-0.944).Running was a protective factor for obese males(OR=0.375,95%CI:0.206-0.681)and obese females(OR=0.412,95%CI:0.233-0.728).Obese females(OR=0.620,95%CI:0.423-0.910)lack exercise habits.Aerobics or gymnastics were protective factors for obese males(OR=0.410,95%CI:0.173-0.973)(P<0.05).Conclusions:There are many exercise factors affecting BMI.We can actively urge low-weight males to do more swing exercises according to the actual situation.Obese students should take part in physical exercises such as running,aerobics or gymnastics,so that students can develop good exercise habits.