Table 2

Summary of intervention characteristics of included publications for self-efficacy analysis
Intervention characteristics Frequencies for self-efficacy analysis (k = 61) Frequencies for physical activity analysis (k = 42)
Theoretical basis
Theoretical basis explicitly mentioned 41 26
Some theory mentioned 6 5
No theoretical basis explicitly mentioned 14 11
Social Cognitive Theory 40 26
Transtheoretical Model 2 1
Self-determination Theory 2 2
Other/Unclear 17 13
Type of activities
Individual 26 17
Group 31 22
Both individual and group 4 3
Intervention focus
Exercise (e.g. aerobics class, gym, jogging) 3 0
Lifestyle physical activity (e.g. gardening, walking etc.) 31 25
Weight loss/management 27 17
Intervention also includes healthy eating focus 43 29
Delivered by
‘Facilitator’/’Interventionist’ 8 8
Health and fitness professional 22 9
Nurse or GP 6 4
Peers/lay expert 4 4
Researcher 8 5
Not stated 5 4
Other (including coach, dietician, instructor) 8 8
Setting
By internet/post/telephone 3 2
Church 2 2
College/University 4 1
Community Centre 6 6
Fitness centre/gym 20 6
GP Surgery/Hospital 5 4
Participants home 4 3
Workplace 1 1
Unclear/Other 16 17
Delivery mode
Counselling session 33 20
Discussion Group 18 14
Telephone 3 2
Web-based 7 6

Olander et al.

Olander et al. International Journal of Behavioral Nutrition and Physical Activity 2013 10:29   doi:10.1186/1479-5868-10-29

Open Data