Effect of theory-based intervention to promote physical activity among adolescent girls: a randomized control trial

Abstract

BackgroundPhysical activity (PA) rates decline among most high school female students, and due to cultural restrictions, the reduction of physical activity might be exacerbated in female Iranian adolescents.ObjectiveTo determine the effects of the physical activity education theory-based intervention to promote activity among adolescent girls.MethodsThis randomized clinical trial was conducted at public high schools in Tehran, Iran, from September 2015 to July 2016 on 578 girls. The subjects were assigned randomly to two groups of experiment and control (n=289 per group). All participants in the experimental group received an educational program based on a modified TPB. Measures were assessed before and 6 months after the experiment. The data were analyzed using SPSS version 23. We used descriptive statistics, multilevel analysis, Likelihood Ratio (LR) test, P-value less than 0.05 were considered statistically significant.ResultsFive hundred and seventy-eight participants with a mean age of 14.26±0.96 years were studied in two groups of experiment (n=289) and control (n=289). Moreover, adjusted for the baseline values, the mean of the scores of the knowledge (84.1±13.6), attitude (31.2±13.6), subjective norm (40.4±11.1), behavioral intention (34.3±14.7), perceived behavioral control (38.4±11.6), perceived parental control (42.9±14.2), behavioral (42.6±17.1) was significantly higher in the experiment group compared with the control group (p<0.001).ConclusionsThe results of this study implicate that theory based educational intervention is considered to be more effective in improving physical activity in adolescents. This result can be used to increase adolescent’s health promotion.Trial registrationThe trial was registered at the Iranian Registry of Clinical Trials (IRST) with the identification number: IRCT2015070623089N2.FundingThe authors received no financial support for the research from Kermanshah University of Medical Sciences.

Structured, multifactorial randomised controlled intervention to investigate physical activity levels, body composition and diet in obese and overweight adolescents

“…This perception may affect their intention to change behaviours and also to change personal behaviours which require culturally sensitive knowledge translation. 41 In this study, interventions in schools and family education may contribute to successful adolescent behaviour change towards a healthy lifestyle. 41 …”

“… 41 In this study, interventions in schools and family education may contribute to successful adolescent behaviour change towards a healthy lifestyle. 41 …”

“… 41 TPB links an individual’s beliefs and behaviour and states that the three determinants of attitude, subjective norms and perceived behaviour control can predict or affect one’s intent to show specific behaviours. 41 For example, an individual’s perception of normative social pressures and the beliefs of peers and family may influence their perception about specific behaviours (eg, adopting an exercise programme or changing their eating patterns). This perception may affect their intention to change behaviours and also to change personal behaviours which require culturally sensitive knowledge translation.…”

Physical activity intention and attendance behaviour in Finnish youth with cerebral palsy – results from a physical activity intervention: an application of the theory of planned behaviour

“…Based on the TBP, this study explores the motivational factors influencing intention and predicting attendance behaviour to a physical activity intervention. Previous studies have found support for the TPB in exploring factors involved in behavioural intention among typically developed youth in physical activity interventions (Darabi et al, 2017). Further, TPB has been widely used in understanding factors involved in behavioural intention for example, in studies on social behaviour (Hsu et al, 2017;Verma and Chandra, 2018;Zhang et al, 2017), consumer behaviour (Scalco et al, 2017) or health behaviour (Chevance et al, 2017).…”

Using Gamification and Social Incentives to Increase Physical Activity and Related Social Cognition among Undergraduate Students in Shanghai, China

“…In this framework, aspects of attitude, subjective norms, and perceived behavior control should be taken into consideration to promote one’s intention when developing strategies for behavior change. Previous interventions based on TPB have shown benign effects on increasing PA [ 19 , 20 ]. However, although TPB has provided a theoretical framework, some interventions have achieved few effects due to lack of practical techniques, and the traditional supervised PA intervention has usually suffered from high costs but relatively low popularity, low convenience, and low flexibility, as well as low anonymity [ 21 ].…”