A Study On The Relationship Between Physical Activity Level And Physical Health Of Junior Middle School Students And Their Relationship

Objective:Physical activity is one of the important factors affecting physical health, regular physical activity can improve people’s physical health, lack of physical activity is one of the independent risk factors for chronic diseases. Youth is the key period of learning cultural knowledge, their activities and less time, study pressure can affect their physical health, lead to the serious decline. This paper attempts to study the XinCheng middle school students physical activity level and health and their mutual relations, to explore the current junior middle school students’physical activity and its relationship with the students physique.Methods:A questionnaire survey of the study of physical test and daily physical activity on Junior high school students of XinCheng middle school. According to the "Regulations of national student physical health standard", The middle school physical health test include:height, weight, vital capacity, standing long jump, sit and reach,50meters,1000meters (male),800meters (female), chin up (male), sit ups (female), vision. The data were analyzed by SPSS software.Result:(1)Middle school students’physical activities mainly include learning activities, physical exercise, transportation and household activities.Physical education, every week3class, each class40minutes; The time of broadcast gymnastics form is20minutes; After class, the weekend and after school, the three time periods and occasionally participating in physical activity accounted for about50%, regular exercise and never exercise the basic each accounted for25%students in school; The main way of transportation are walking and riding by bike, the time of which is20minutes, the major time of students doing housework is20-40minutes.(2)The heights of boys are taller than that girls, three grades increased.Boys’height growths faster than girls’, The mean value of BMI in the normal range, three grade students of normal weight ratio was49.4%, overweight accounted for19.6%, obesity accounted for12.7%, lower weight accounted for13.2%, Students’vital capacity weight fail rate was very high, mainly concentrated in the passing and failing the two segment, quite a few excellent, good proportion; A good proportion of up to50meters of the three grades; standing long jump pass and fail more, Less excellent and good; High grade three good, excellent rate; The boys1000meters,800meters high failure rates of girls; Boys with upwards of failure rate is higher, the girls sit ups good, pass more.(3) The relation between Junior high school students’physical activity and physical health, The time of doing homework of boys have significant differences with the results of50meters (P<0.01); The transportation modes of boys have significant differences with the results of vital capacity,50meters and1000meters (P<0.05),the transportation modes of girls have significant differences with the results of vital capacity,50meters, standing long jump (P<0.05)(P<0.01); The frequency of physical exercise of boys have significant differences with the results of vital capacity,50meters,1000meters (P<0.05)(P<0.01), the frequency of physical exercise of girls have significant differences with the results of vital capacity,50meters,800meters(P<0.01) The sedentary of boys have significant differences with the results of vital capacity (P<0.05), the sedentary of girls have significant differences with the results of standing long jump (P<0.05); The housework time of girls have significant differences with the results of vital capacity,50meters,800meters (P<0.05)(P<0.01).Conclusion:The levels of middle school students’body activities are low. The physical activity of middle school students, in addition to the school physical education and broadcast gymnastics.the participation degree of students extracurricular physical exercise are not enough. The proportion of occasionally participation are large, boys higher than girls in the participation of physical exercise.The physical health,50meters, sit and reach, good girls sit ups scores more, Vital capacity and standing long jump of passing and failing.Boys1000meters, girls800meters and boys chin-up failure rates are high; The relationship between physical activity and physical health, physical exercise is the main factor of affecting physical health, transportation, housework and sedentary have certain impacts on the student’s health, learning activities have little impact on physical health.