| ObjectivesTo investigate the status of lifestyle and body composition of college students,and explore the relationship between them, so as to provide a scientific basis for students’ lifestyle guidance and physical enhancement.MethodsCollege students were selected by cluster random sampling. Data were collected through self-designed questionnaire on lifestyle and physical measurements by the Korea Biospace company In Body720. Descriptive analysis, correlation analysis and multiple regression equations were adopted to analyze the data by SPSS21.0.Results1 Daily habits and learning time of college students In 1128 subjects, smokers accounted for 4.0%, and students who had a history of alcohol were 19.4%. The majority of students(47.9%) spent 2~3 h every day on the internet. The proportion of boys who surfed the Internet over 4 h was 18.6%, and the proportion of girls was14.6%. The time spent online between boys and girls had no significant diference( P=0.286). 90.4% of students studied less than 10 h every day and 47.2% of students slept less than 7h.2 Physical exercise of college students 12.7% of the students almost took no exercise, and students who took physical exercise 5 times per week or above accounted for only 12.9%. The ratio of boys who spent 1 h or more on sports was29.8%, and the ratio of girls was only 12.4%. The students who had no feeling and sweated slightly after exercise accounted for 49.2%, and the ratio of girls was higher than that of boys. The proportion of girls who took moderate intensity exercise was31.0%, less than that of boys(51.7%). The exercise time, intensity and frequency of boys were more than those of girls, and there were significant differences between them(P <0.001).3 Dietary habits of college students Only 8.0% of students did not eat snacks, and87.9% of students had 3 meals a day. The ratio of students who seldom had breakfastand didn’t have breakfast was 28.8%. The time for per meal of the majority of students(67.8%) was 10 ~ 20 min, and the ratio of students whose mealtime was between 20 min and 30 min was 21.4%. The ratio of students who ate vegetables every day, drank milk per day and ate fruit 3-4 times a week respectively was 45.5%,16.2% and 30.3%. 21.3 % of students almost did not eat fish. The intake of cereals,eggs and soy products complied with the diet pagoda.4 Body composition of college students For boys, the composition of protein, fat,minerals, water content was 16.4%, 17.2%, 6.1% and 61.3%, respectively. For girls,the composition was 14.5%, 28.0%, 5.3% and 53.2%, respectively. The water and protein content of college students showed a slightly increasing trend along with the growth of age. The ratio of students whose water, protein, minerals content was under the standard was 30.6%, 30.9% and 12.4%, respectively. The over standard rate of body fat content was larger, which accounted for 23.1% of the total. The ratio of girls whose water and protein content was under the standard was 39.3% and 41.0%,which were higher than those of boys(15.7% and 13.5%, respectively). The over standard rate of girls’ body fat was 25.2%, higher than that of boys(19.5%).5 Nutritional status of college students The "recessive obesity" rate of boys(1.0%)was lower than that of girls(23.0%)(P =0.035). The malnutrition rate of boys(6.7%)was higher than that of girls(0.4%)(P =0.020).6 Relationship between body fat and lifestyle of college students The body fat of boys was mainly affected by exercise intensity(β=1.526), exercise frequency(β=-1.039), the number of meals(β=-2.212) and the frequency of fruit eating(β=0.680).The body fat of girls was correlated with exercise intensity(β=1.137).7 The relationship between the protein content and the way of life The protein content of boys was mainly affected by exercise frequency(β=0.397), exercise time(β=0.240), exercise intensity(β=0.209) and frequency of fruit eating(β=0.115). The protein content of girls was correlated with exercise intensity(β=0.244), feeding speed(β=-0.198) and the frequency of fruit eating(β=0.081).Conclusion1 Most college students have no smoking and drinking habits, and the learning time conforms to the national regulation. But the students still have unhealthylifestyles, such as less exercise, lack of sleep, unhealthy food structure and fast eating.2 The protein content of some college students is under the standard, and the problem of girls’ recessive obesity is relatively serious.3 The exercise intensity and the frequency of fruit eating have positive influence on college students’ body protein content. The body fat content of girls is correlated with exercise intensity. The reason may be that the girls who have high body fat are more willing to take part in exercise. |
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