title: Influential factors of insufficient physical activity among adolescents with asthma in Taiwan.
abstract: OBJECTIVE
  Little research has been reported concerning insufficient physical activity in Taiwanese adolescents with asthma. The aims of this paper are to compare the amount of physical activity between asthmatic and non-asthmatic adolescents in Taiwan, as well as to investigate the influential factors associated with insufficient physical activity in asthmatic adolescents.
  
  
  METHODS
  Self-reporting structured questionnaires (socio-economic status, scale of family support for physical activity, amount of physical activity) and peak expiratory flow were assessed from 286 adolescents with asthma and 588 non-asthmatic adolescents in a cross-sectional design. Insufficient amount of physical activity was based on less than 300 minutes per week of moderate and vigorous physical activity.
  
  
  RESULTS
  Adolescents with asthma have a greater amount of physical activity and a higher level of family support than those who are non-asthmatic. In Taiwan, adolescents with asthma, girls relative to boys, obesity relative to average weight, and low family support relative to high family support were found to be associated with insufficient physical activity.
  
  
  CONCLUSIONS
  Physical activity in adolescents with asthma is insufficient especially in girls, in asthmatics with obesity, and in those with low family support. We suggest that physical activity programs should be applied to Taiwan adolescents with asthma in order to match the criteria of 300 minutes per week of moderate and vigorous physical activity, especially for girls, the obese and those with a low level of family support.
authors.affiliation: Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan; School of Nursing, China Medical University, Taichung, Taiwan.
authors.forename: Yu-Kuei
authors.initials: YK
authors.lastname: Teng
authors.affiliation: Division of Allergy Asthma and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, and Chang Gung University, Taoyuan, Taiwan.
authors.forename: Jing-Long
authors.initials: JL
authors.lastname: Huang
authors.affiliation: Division of Allergy Asthma and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, and Chang Gung University, Taoyuan, Taiwan.
authors.forename: Kuo-Wei
authors.initials: KW
authors.lastname: Yeh
authors.affiliation: Division of Pediatric Immunology and Nephrology, Department of Pediatrics, Taichung Veterans General Hospital, Taichung, Taiwan.
authors.forename: Lin-Shien
authors.initials: LS
authors.lastname: Fu
authors.affiliation: Graduate Institute of Medical Science, Taipei, Taiwan; School of Nursing, National Defense Medical Center, Taipei, Taiwan; Department of Nursing, Tri-Service General Hospital, Taipei, Taiwan.
authors.forename: Chia-Huei
authors.initials: CH
authors.lastname: Lin
authors.affiliation: School of Nursing, China Medical University, Taichung, Taiwan.
authors.forename: Wei-Fen
authors.initials: WF
authors.lastname: Ma
authors.affiliation: Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan; Department of Physical Therapy, Graduate Institute of Rehabilitation Science, China Medical University, Taichung, Taiwan; Department of Healthcare Administration, Asia University, Taichung, Taiwan.
authors.forename: Shin-Da
authors.initials: SD
authors.lastname: Lee
authors.affiliation: School of Nursing, China Medical University, Taichung, Taiwan; School of Nursing, National Defense Medical Center, Taipei, Taiwan.
authors.forename: Li-Chi
authors.initials: LC
authors.lastname: Chiang
mesh_terms: D000293:Adolescent; D001249:Asthma; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D009765:Obesity / Q000453:epidemiology; D010366:Peak Expiratory Flow Rate; D012737:Sex Factors; D012944:Social Support; D012959:Socioeconomic Factors; D013624:Taiwan