"52110" intervention model on healthy eating and physical exercising among primary and middle school students

Objective To explore the effect of "52110" intervention on healthy eating and physical exercising among primary and middle school students.Methods An questionnaire survey,physical examination and blood pressure assessment among 2 148 students selected with random cluster sampling from 7 primary and middle schools in Yinchuan and Wuzhong cities of Ningxia during September 2014.Results The awareness on healthy knowledge was relatively high at baseline in both cities.Before and after 3-month intervention,correct rate on healthy knowledge among intervention group (52.7%,69.8%) was higher than that of the control group (42.5%,64.1%) (x2 =14.036,4.965,P<0.01,P=0.026,respectively).After intervention,intervention consumed more healthy food including fruits,vegetables and meat,and spent more time in moderate intensity exercise and television watching,but less high intensity exercise than that in the control group(P<0.05).The height and weight of the intervention group was higher after intervention than before intervention,SBP was lower than that before intervention,the differences were statistically significant(P<0.01).The BMI and DBP had no significant changes before and after intervention.Higher BMI,height and weight while lower SBP among control group was found compared with before intervention(P<0.01).Conclusion The intervention model of "52110" can affect eating and physical exercising pattern,as well as effectively alleviate overweight and obesity risk among primary and middle school students.