Physical activity (PA) has health benefits and can reduce chronic
disease risk. Healthcare professionals provide guidance on PA, but often do not
meet the recommendations themselves. A theory-based online tailored PA intervention was delivered to healthcare professionals working in four hospitals in
Western Australia. The study aimed to test effects of the intervention on healthcare professionals’ PA and psychological wellbeing. This is the first study to
evaluate additive effects of techniques targeting three distinct processes that may
lead to health behaviour: motivation, self-regulation and habit.