A Test of the Theory of Planned Behavior to Explain Physical Activity in a Large Population Sample of Adolescents From Alberta, Canada

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• 作者：Ronald C.  ; Plotnikoff Ph.D.^a ;   ; ^b ;   ; ^{ron.plotnikoff@newcastle.edu.au} ; David R.  ; Lubans Ph.D.^a ; Sarah A.  ; Costigan^a ; Linda  ; Trinh M.A.^c ; John C.  ; Spence Ph.D.^d ; Shauna  ; Downs M.Sc^e ; Linda  ; McCargar Ph.D.^e
• 关键词：Adolescents ; Physical activity ; Theory of planned behavior ; Gender differences ; Web-based survey
• 刊名：Journal of Adolescent Health
• 出版年：2011
• 出版时间：November 2011
• 年：2011
• 卷：49
• 期：5
• 页码：547-549
• 全文大小：277 K

文摘

Purpose

To test the Theory of Planned Behavior (TPB) in a large population sample of adolescents from Alberta, Canada.

Methods

4,073 adolescents completed a self-administered web-based survey related to physical activity (PA).

Results

TPB explained 59 % and 43 % of the variance for intention and behavior, respectively. Moderating (by gender) and mediating tests were supported.

Conclusions

TPB is useful for understanding PA in this population.