Promoting physical activity: development and testing of self-determination theory-based interventions

Table 1 Background characteristics of three key SDT-based intervention trials for PA promotion.

Descriptor	PAC Trial	Empower Trial	PESO Trial
Trial location	Canada	UK	Portugal
Participant gender	69% female; 31% male.	72.9% female; 27.1% male.	100% female.
Participant age & education	M_age = 47.3; years of education M = 14.75.	M_age = 49.3; Education = NA	M_age = 38.1; 66% with higher education.^a
Participant baseline PA & weight status	< 150 min of mod PA per week; M_BMI = 30.74.	< 150 min of mod PA per week; M_BMI = 33.21^a	M _min/week of PA = 110.2; M_BMI = 31.7.^a
Intervention setting	Inactive patients in a large community-based primary care practice (total of 5 HCP).	Primary care patients referred (by HCP) to Exercise on Prescription (EoP) scheme at community leisure centres.	Participants recruited via local advertisement (e.g., schools, health care centers) for a weight management program at the Technical University of Lisbon.
Domain	PA	PA	Weight control (emphasis on PA & nutrition).

Abbreviations: PA = physical activity; HCP = Health care provider(s); EoP = Exercise on Prescription
^aIntervention group stats only. No significant differences found with control group.

ISSN: 1479-5868