MONITORING AND EVALUATION OF SPORTS LOAD FOR PRIMARY AND MIDDLE SCHOOL STUDENTS

Abstract

In recent years, the physical fitness of primary and middle school students in China has been declining. In addition to the unbalanced nutrition, the main reason is the insufficient load of physical exercise. The aim of this study is to explore the quantitative methods of sports load of primary and middle school students by means of training impulse (TRIMP), and to evaluate the feasibility and effectiveness of this method. In the study, 297 students (168 boys, 129 girls) were divided into intervention group and control group. All of students were tested with height, weight, vital capacity, sit-and-reach, 50[Formula: see text]m running, 50[Formula: see text]m [Formula: see text] 8 round trip, one-minute sit-up, one-minute skip and other physical indicators in gym class, the change of resting heart rate, sport heart rate, exercise time were collected before and after by independent development of the heart-rate wrist belt. The mean sport heart rate, mean exercise time (the cumulative time of the heart rate between 120 and 200[Formula: see text]bpm), the time of different intensity exercise and the TRIMP were calculated. The results of correlation analysis showed that the change of TRIMP was positively correlated with the change of vital capacity and one-minute sit up, and increasing sports load could improve the physical health, verifying the feasibility of using the TRIMP to quantify the sports load. At the same time, the TRIMP was expressed in scores to make the understanding easy for the teachers and students or any audience in general.