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Background: Most of the individuals concerned by colorectal cancer screening recognize the importance of screening participation. However, the screening rates for this cancer remain low in most countries, including France. Based on the action control framework, the present study aimed to (i) explore the distribution of intentions-behavior profiles toward colorectal cancer screening and (ii) to determine to what extent the profiles could be differentiated on theory of planned behavior (TPB) (i.e., attitudes, subjective norms, perceived behavioral control [PBC]) and self-regulation variables (i.e., action planning, coping planning). Method: A total of 149 participants from the general French population (M = 60 years, SD = 7.04) completed a questionnaire measuring TPB and self-regulation variables. Subsequent screening behavior was determined from medical records. Participants were notably categorized as non-intenders, unsuccessful intenders, or successful intenders. Data were analyzed using discriminant function analysis and analyses of covariance. Results: Main findings revealed that 71% of the intenders were unsuccessful intenders. TPB and self-regulation variables were significantly correlated with the discriminant function (rs ≥.40). Successful and unsuccessful intenders reported significantly higher levels of subjective norms, PBC, and coping planning than non-intenders (ps <.01). Successful intenders reported a significantly higher level of coping planning than unsuccessful intenders (p <.01). Conclusions: Further research appears necessary to empirically test to what extent interventions targeting subjective norms, PBC, and coping planning could enhance the proportion of successful intenders toward colorectal cancer screening. [ABSTRACT FROM AUTHOR]

Most previous research based on the Theory of Planned Behaviour (TPB) to explain children's physical activity (PA) remains cross-sectional and the moderating role of demographic variables on the link between TPB variables is rarely explored. This study aims to (1) test a longitudinal cross-lagged panel model based on the TPB to explain PA in children, and (2) examine in what extent this model operates equivalently across age and gender. Children (N = 363, M = 8.6 years) completed measures of TPB constructs and PA at two measurement times (T1 and T2) within three months. Self-reported PA. Path analyses revealed that the model tested accounted for 25% of the variance in PA at T2. Subgroups analyses revealed that age significantly moderated the links between subjective norms at T1 and T2, between PA at T1 and T2, and between PA at T1 and subjective norms at T2. Gender significantly moderated the links between intentions at T1 and T2, and between PA at T1 and perceived behavioural control at T2. The temporal stability of the variables of the TPB and the link between initial PA and subsequent TPB variables may vary by children's gender and age. [ABSTRACT FROM AUTHOR]

This article presents the validation of the 'Echelle de Motivation envers l'Activité Physique en contexte de Santé' including the six forms of motivation underlined by self-determination theory. Study 1 underlines the content validity of a pool of 30 items (N = 20). Study 2 supports the six-factor structure validity of the 18-item Echelle de Motivation envers l'Activité Physique en contexte de Santé (N = 309). Study 3 (N = 191) confirms structure validity, as well as concurrent validity and 2-week temporal reliability. The Echelle de Motivation envers l'Activité Physique en contexte de Santé can be considered as a valid and reliable tool to use in prevention or rehabilitation contexts. [ABSTRACT FROM AUTHOR]

Purpose: The theory of planned behavior (TPB) has been criticized for not including interactions between the variables assumed to predict behavior. This study sought to test how TPB variables interact to predict physical activity (PA) in children.Method: Four hundred thirty-eight children (Mage = 8.6 years, SD = 1.6 years) completed a TPB questionnaire and a PA questionnaire at Time 1. The PA measure was repeated 2 months later. Path analyses were performed to test the hypothesized model including interaction terms between TPB variables. Simple slopes analyses were also carried out to examine the statistically significant interaction terms.Results: Path analyses confirmed the classical hypotheses of TPB (R2 for intentions = .39, R2 for PA = .12) and also demonstrated only statistically significant Attitudes × Perceived Behavioral Control and Subjective Norms × Attitudes interactions (R2 change for intentions = .01, p = .009). Simple slopes analyses revealed that the strength of the association between perceived behavioral control and intentions was only statistically significantly higher (t = 2.18, p = .05, d = 0.34, 95% CI  [0.03, 0.65]) when attitudes were high compared with when attitudes were low. The link between attitudes and intentions was only statistically significant at a low level of subjective norms but not at a high level.Conclusion: The integration of interaction effects between TPB variables did not increase for the variance of PA explained by the model. More research appears to be necessary to explore how the TPB could be augmented to better predict PA in children. [ABSTRACT FROM AUTHOR]

Binge drinking is a widespread practice among adolescents worldwide and is associated with various harmful consequences. Theory-based interventions are a promising approach to prevent this drinking behaviour in this population. The aim of the present review was to determine: (1) the characteristics of theory-based interventions targeting binge drinking in adolescents, (2) the impact of such interventions on binge drinking, and (3) the quality of theoretical implementation. For this systematic review, randomised controlled trials were eligible for inclusion if the binge drinking-targeting intervention was based at least on one theoretical framework, and if the population's mean age was between 10 and 18 years. Two authors extracted relevant data. A meta-analysis was conducted to evaluate the effect of interventions on binge drinking. Effect sizes were calculated with the Hedges's g. Binge drinking was measured as a continuous or dichotomous outcome. The quality of theoretical implementation of interventions was measured using an existing "theory coding scheme". Sixteen studies were identified. Ten were based on a single theory, and six on a combination of theories. The number and type of behaviour change techniques used in each intervention varied greatly. Theory-based interventions led to a small but significant decrease in binge drinking (Hedges's g = 0.10; 95% confidence interval = 0.04, 0.16). The quality of theoretical implementation was globally low, and the reciprocal link between behaviour change techniques and theoretical constructs was unclear for most studies. Theory-based interventions have a small but significant beneficial impact on decreasing binge drinking in adolescents. Future research should try to be more effective in matching theoretical determinants of behaviour with the content of the intervention. • Systematically reviewed theory-based interventions on binge drinking in adolescents. • Sixteen studies met the inclusion criteria. • Number and type of behaviour change techniques used by interventions varied greatly. • Impact of theory-based programs to decrease binge drinking was significant but small. • Flaws were found regarding methodological quality and theoretical implementation. [ABSTRACT FROM AUTHOR]

Drawing on Self-Determination Theory, this study explored the motivational profiles toward Physical Activity (PA) among adults with type 2 diabetes and the relationships between motivational profile, perceived competence and PA. Participants were 350 men and women (Mean age 62.77 years) who were interviewed on their motivations toward PA, perceived level of competence to practice, and PA practice. Cluster analyses reveal the existence of three distinct profiles: "High Combined" (ie, high scores on motivations ranging from intrinsic to external regulation, moderate level on amotivation), "Self-Determined" (ie, high scores on intrinsic, integrated, and identified regulations; low scores on other regulations), and "Moderate" (ie, moderate scores on all regulations). Participants with "High Combined" and "Self-Determined" profiles reported higher perceived competence and longer leisure-time PA practice in comparison to those with a "Moderate" profile. This study highlights the necessity of adopting a person-centered approach to better understand motivation toward PA among type 2 diabetics. [ABSTRACT FROM AUTHOR]

Using self-determination theory (SDT) as an explanatory framework, this randomised-controlled study evaluates the effect of a motivational interviewing (MI)-based intervention as an addition to a standard weight loss programme (SWLP) on physical activity (PA) practice in obese adolescents over a six-month period. Fifty-four obese adolescents (mean age = 13 years, mean BMI = 29.57 kg/m²) were randomly assigned to an SWLP group (n = 28) or SWLP + MI group (n = 26). Both groups received two SWLP sessions, supplemented for the SWLP + MI group, by six MI sessions. Perceived autonomy support, perceived competence, motivational regulations, PA and BMI were assessed at baseline, three and six months (i.e. the end of the programme). MLM analyses revealed that compared to SWLP, the SWLP + MI group had a greater BMI decrease and a greater PA practice increase over time. Moreover, the SWLP + MI group reported greater autonomy support from medical staff at the end of the programme, greater increase in integrated and identified regulations and a stronger decrease in amotivation. MI appears as an efficient counselling method as an addition to an SWLP to promote PA in the context of pediatric obesity. [ABSTRACT FROM PUBLISHER]

Aims Design Setting Participants Intervention and comparator Measurements Findings Conclusions The aim of this work was to measure the impact of P2P (i.e. peer‐to‐peer), a peer‐led smoking prevention intervention, on daily smoking prevalence of adolescents over 2 school years.A cluster‐randomized controlled trial was performed over a 16‐month follow‐up (trial status: closed to follow‐up). P2P was implemented 1–3 and 13–15 months after baseline. Assessments took place at baseline and 4, 10 and 16 months after baseline. The research team, assessors and adolescents were blinded to the study‐arm assignment only at baseline.Fifteen vocational high schools in France were randomized into two clusters, using a 1:1 allocation ratio per French department (n intervention = 7, n control = 8).Participants comprised a sample of 2010 students in year 11 (i.e. 15–16 years) in vocational high schools. A total of 437 students could not be assessed at baseline (absent or left school), yielding a total sample of 1573 students (n intervention = 749, n control = 824).The P2P programme trained voluntary students to become peer educators and design smoking prevention actions for their schoolmates in the intervention group (n = 945 students), compared with a passive control group (n = 1065 students).The primary outcome was change from baseline in the prevalence of self‐reported daily smoking (i.e. at least one cigarette per day) at 16 months.The ‘time × group’ interaction indicated that, compared with the control group, the intervention group had statistically significantly fewer daily smokers after 16 months [odds ratio (OR) = 0.33, 95% confidence interval (CI) = 0.20, 0.53]. Similarly, compared with the control group, the intervention group had statistically significantly fewer daily smokers after 4 months (OR = 0.50, 95% CI = 0.30, 0.82) and 10 months (OR = 0.60, 95% CI = 0.37, 0.98). No adverse events of P2P2 were reported.A cluster‐randomized trial found evidence that the peer‐led P2P (peer‐to‐peer) smoking prevention intervention reduced the uptake of daily smoking among high school students in France over 16 months. [ABSTRACT FROM AUTHOR]

Theoretical frameworks such as the theory of planned behavior (TPB) can be applied to design and evaluate smoking behavior interventions. The present systematic review aimed to: (i) determine the characteristics of TPB-based interventions and their reported impact on smoking behavior and TPB variables, (ii) evaluate the level of methodological quality in the included studies, and (iii) assess the quality of the theoretical implementation. Studies were eligible for inclusion if the intervention targeted smoking behavior, was explicitly based on the TPB, and if smoking behavior or intention was measured at least at post-intervention. Relevant articles were identified through searches on databases and internet search engines, responses to messages sent on thematic forums, consultation of prominent authors, and manual searches on key websites and key TPB-publications. Seventeen studies met the inclusion criteria. A majority of studies (65%) targeted the student population (i.e., elementary school, high school, university). Interventions minimally included the provision of health messages. The proportion of studies that reported a significant impact on smoking behavior, intention, attitude, subjective norm, or PBC ranged between 42% and 50%. Regarding methodological quality, unclear or high risks of bias were notably found regarding the selection of participants, data collection methods, withdrawal and drop-outs, and blinding. Regarding theoretical implementation, the reciprocal link between intervention techniques and TPB variables targeted remain unclear for a majority of studies. To better inform tobacco prevention and TPB research, future studies should more systematically use rigorous methods when designing, implementing, and reporting TPB-based interventions. [ABSTRACT FROM AUTHOR]

Objective: To investigate the cross-sectional association between personal physical activity (PA) level, Theory of Planned Behavior (TPB) constructs toward PA promotion, and PA promotion behavior among smoking cessation advisors.Method: 149 smoking cessation advisors were invited to complete online questionnaires. Hypotheses were tested using Bayesian path analysis.Results: Attitudes and perceived behavioral control (PBC) of smoking cessation advisors were related to PA promotion intentions; intentions were in turn related to PA promotion behaviors. Advisors' personal PA level was indirectly associated with PA promotion behaviors through PBC and PA promotion intentions.Conclusion: The TPB is a relevant theoretical framework with which to explore determinants of PA promotion behavior among smoking cessation advisors. The PA level of health care professionals may be linked to PA promotion behavior through some TPB constructs.Practice Implications: Smoking cessation advisor training should include education on attitude development (e.g., PA benefits on smoking cessation), PBC (e.g., modality of PA prescription) and PA promotion intentions (e.g., goal setting). Smoking cessation advisors should also be encouraged to regularly practice PA in order to improve their PA promotion behaviors. [ABSTRACT FROM AUTHOR]

Background: Recent population-based surveys have reported that large majorities of children in France, Europe and in the US are not complying with international physical activity (PA) guidelines. There is, therefore, a need to find programs that will improve children's PA habits from an early age. Theory-based interventions that include school, family, and community involvement have the potential to generate a considerable increase in the PA level of children. The theory of planned behavior (TPB) is one of the most widely tested models of the factors influencing health-related behaviors. The Great Live and Move Challenge (GLMC) is an extended TPB-based intervention designed to promote PA in French primary school children aged 7-11 years. The objective of this paper is to describe the protocol of a randomized controlled trial to evaluate the effectiveness of the GLMC on the PA level of children.Methods: This is a two-year cluster-randomized controlled trial comparing an intervention group to a control group, randomized into clusters (community of communes) and stratified by department (Hérault, Gard, Aude) and residential environment (urban, rural). The goal is to recruit 4000 children. The GLMC involves children and their parents, and multiple local grassroots partners, such as school teachers, municipal officials and policy stakeholders. The intervention will be delivered over 3.5 months per year for a two-year period. Pre- and post-intervention, children and parents will be asked to fulfill a questionnaire concerning current PA level, TPB variables (i.e., intentions, attitudes, subjective norms, perceived behavioral control) and other psychosocial variables (e.g., perceptions of activity opportunities). A subsample of 400 children will be proposed to wear an accelerometer (i.e., the Actigraph GT3X+). The primary hypothesis is that the GLMC intervention will increase the proportion of children achieving the World Health Organization's recommended 60 min of moderate to vigorous PA per day by 15%.Discussion: This study will evaluate the effectiveness of a multilevel, theory-based PA program and potentially provide valuable information for schools and public health officers looking for innovative PA programs.Trial Registration: ISRCTN:61116221 , 19/06/2018. [ABSTRACT FROM AUTHOR]