title: Secular trends of sports participation, sedentary activity and physical self-perceptions in Hong Kong adolescents, 1995-2000.
abstract: OBJECTIVE
  To assess the 5-year secular changes in sports participation, sedentary activity, and physical self-perceptions among Hong Kong adolescents.
  
  
  METHODS
  A total of 2932 and 5692 secondary students, aged 13-18 participated in the Health Related Behavior General (HRBG) Survey in 1995-1996 and 2000-2001, respectively. Extracurricular sports participation at least weekly or as a team member (none, 1-2 events, 3 or more events), sedentary activities (0-1 h/day, 2 h/day or more) including television/video watching and homework were assessed. Additionally, physical self-perceptions, physical fitness (fit/very fit, moderately fit, unfit/very unfit) and body weight (intention to lose weight, satisfied, intention to gain weight) were reported. Secular trends of sports participation, and sedentary activities and physical self-perceptions were assessed.
  
  
  RESULTS
  During the 5 years, the prevalence of sports participation (at least weekly or membership) decreased significantly in boys. The prevalence of both TV/video watching and homework for at least 2 h/day increased significantly in both sexes. The prevalence of being unfit/very unfit increased significantly in girls. No significant secular difference in weight perception was observed for both sexes.
  
  
  CONCLUSIONS
  Sports participation decreased and sedentary activities increased during the 5-year period. Physical self-perceptions did not change significantly, except an increase in being physically unfit was observed in girls.
authors.affiliation: Department of Community Medicine and School of Public Health, Faculty of Medicine, The University of Hong Kong, Hong Kong, China. kkmak@hku.hk
authors.forename: Kwok-Kei
authors.initials: KK
authors.lastname: Mak
authors.forename: Jeffrey R
authors.initials: JR
authors.lastname: Day
mesh_terms: D000293:Adolescent; D001835:Body Weight; D003256:Community Participation / Q000639:trends*; D005260:Female; D005500:Follow-Up Studies; D006306:Health Surveys; D006723:Hong Kong; D006801:Humans; D008297:Male; D010806:Physical Education and Training / Q000639:trends*; D010809:Physical Fitness; D057185:Sedentary Behavior; D012649:Self Concept; D012737:Sex Factors; D013177:Sports / Q000639:trends*; D013690:Television / Q000706:statistics & numerical data; D013997:Time Factors; D014937:Work / Q000706:statistics & numerical data