[Prevalence rate regarding the completion of 'recommended physical activities' and related influencing factors among junior students in 3 urban districts of Hangzhou].

Objective: To explore the rate on completion of the recommended physical activities and its correlates among junior students in 3 urban districts of Hangzhou.

Methods: Describing the range on completion of the recommended physical activities and analyze its related demographic, cognitive and environmental factors with logistic regression model among 3867 juniors students.

Results: 7.7% of the junior students could achieve the recommended physical activities requirements. The proportions of students who were aware of the recommendation on physical activity programs showed as 31.0%. 59.2% of juniors students had physical education (PE) classes in 3 days or more within 1 week. Factors as being male (OR = 2.94), believing that adolescents should take part in at least 60 minutes' physical activities a day (OR = 4.95), having PE classes in 3 days or more within 1 week (OR = 1.44), with family encouragement on physical activities (OR = 1.06) and taking part in physical activities together (OR = 1.14), perceiving the idea that they had enough sports equipment at home (OR = 1.22) and had convenient access to sports facilities around the residential areas (OR = 1.09), and perceiving the idea that it was not safe to walk or jog around the residential area (OR = 1.11) etc. had statistically significant correlations with achieving the recommended physical activities among juniors students.

Conclusion: Demographic, cognitive and environmental factors had some influence on the completion of recommended physical activity program among junior students.