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.