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Table 2 Description of hypothetical mechanisms of change by the intervention

From: A Healthy School Start Plus for prevention of childhood overweight and obesity in disadvantaged areas through parental support in the school setting - study protocol for a parallel group cluster randomised trial

Intervention components Behaviour change techniques useda Hypothetical mediators based on SCT Parental practices targeted by intervention componentsb
Health information 4.1 Instruction on how to perform a behaviour
13.1 Identification of self as role model
Parental behavioural capability Increase:
Accessibility/facilitation/
healthy environment for healthy foods and physical activity
Monitoring of behaviours
Role modeling
Involvement
Encouragement in healthy behaviours
Restriction of unhealthy foods and sedentary behaviours
Co-participation in physical activity
Decrease:
Restriction of food and physical activity
Pressure to eat or to perform physical activity
Food for emotional regulation
MI with parents 38 relational and content-based BCTs [42] of which 16 overlap with Michie et al. [40] and 22 are original to MI
In addition:
2.2 Feedback on behaviour
8.3 Habit formation
8.6 Generalisation of a target behaviour
11.2 Regulate negative emotions
Parental self-efficacy
Parental behavioural capability
Parental outcome expectations and expectancies
Parental role modelling – observational learning
Parent’s motivation
Class room lectures and home assignments 8.1 Behavioural rehearsal/practice
13.1 Identification of self as role model (through home assignments)
Child’s motivation
Parental self-efficacy
Parental behavioural capability
Parent’s test for T2D 1.4 Action planning
2.2 Feedback on behaviour
2.6 Biofeedback
5.1 Health consequences
Parent’s motivation
  1. aas decribed by Michie et al. [40] and Hardcastle et al. [42]
  2. bas decribed by Masse et al. [65] Musher-Eizenman et al. [64]