Sedentary behaviors and physical fitness among middle school students
	    		
	    			
	    			
		        		
			        		
		        		
			        
		        		
			        		
		        		
			        
		        		
			        		
		        		
			        
		   		
		   		
		   			
		   		
	    	
    	 
    	10.16835/j.cnki.1000-9817.2019.07.008
   		
        
        	
        		- VernacularTitle:中学生静态行为与体质水平关系
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		QIU Dayong, ZHANG Yan, ZHANG Hongjian, ZHANG Jun
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. School of Physical and Health Education of Nanjing Normal University Taizhou College, Taizhou(225300), Jiangsu Province, China
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Journal Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Body constitution;
			        		
			        		
			        		
				        		Health promotion;
			        		
			        		
			        		
				        		Students
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Journal of School Health
	            		
	            		 2019;40(7):987-990
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Objective:To understand the current situation of sedentary behaviors among middle school students and its relationship with physical health.
				        	
				        
				        	Methods:Data came from the Taizhou City and Township Health Survey in 2018. Sedentary behaviors and physical fitness of 2 374 middle school students in Taizhou were analyzed.
				        	
				        
				        	Results:The total time spent in sedentary behaviors of middle school students in Taizhou was (8.75±1.56) h/d on weekday and (7.34±1.55) h/d on weekend; Compared with students whose screen time <2 h/d in weekday or weekend, weekend homework time <2 h/d and private tutoring class <2 h/d, students whose screen time ≥2 h/d in weekday or weekend, weekend homework ≥2 h/d and private tutoring class ≥2 h/d showed higher rate of low physical fitness(OR was 1.43, 1.37, 1.12, 1.43, respectively, P<0.05).
				        	
				        
				        	Conclusion:Long duration of weekend homework and private tutoring class, as well as high screen time in weekday and weekend is associated with decline of physical fitness among middle school students.