Fun Aerobic Exercise On Obese Students Physical Health

Object: This study aimed at examining the influence of aerobic activityintervention on obese pupils’body composition、physiological functions andphysical fitness, so as to provide further theoretical and practical support for futurephysical fitness and obesity intervention study on adolescents.Methods: Participants (n=60, age10-12), included26students with normalweight,34simple obesity and were assigned to an intervention group (n=17) and acontrol group(n=17) according to participants’ will. The intervention protocol whichmainly consisted of interesting sport games, was determined individually accordingto their maximum heart rate(HR) which was calculated by the maximum HR formula.While the control group just follow their regular life as before, no other physicalexercise except physical education classes. During the intervention, physical activityintensity was monitored through telemeter of HR. The intervention lasted22weeks.Resluts:(1) obese students spent more time on light activities than normalweight students, and energy consumption per kilo of body weight of obese studentswas lower that normal weight students. The dose-response relationship existed, tosome extent, between BMI and energy consumption of physical activity.（2）Normalweight students did better on the following aspects than obese students:Cardiopulmonary function\speed and endurance\explosive power of lower body\coordinate ability. But in flexibility and abidominal-back muscle power there was nosignificant difference between normal and obese students.(3) After the intervention,there were some obvious improvement on obsess students’ body composition,physiological functions and physical fitness. Their BMI significantly reduced by1.69(p<0.01), body fat by5.29%(p<0.01), muscle mass increased by2.67kg (p<0.01).About the physiological indicators, HR recovery rate improved by2.48%(p<0.01),pulmonary-weight index improved by6.91%(p<0.01). the standing jump whichreflects explosive power of lower body improved by7.31cm(p<0.01),50m*8programwhich reflects speed and endurance capacity improved by0.18s(p<0.05), solid ballthrowing program which reflects abidominal-back muscle power improved by 1.01m(p<0.01), quadrant jump program which reflects agile and coordinate capacityimproved by5.26per10s(p<0.01), the sit-antexion program which reflects flexibilityimproved by2.89cm(p<0.05).Conclusion: obese students spent more time on light activities than normalweight students and the total physical activity intensity level was significantly lowerthan normal-weight students. The cardiopulmonary function and physical fitness ofobese students was not as good as the normal-weight students. The22weeksaerobic activities intervention could improve all the aspects mentioned above.