Testing the effectiveness of a self-efficacy based exercise intervention for inactive people with type 2 diabetes mellitus: design of a controlled clinical trial

Table 1 Measurements and time points

	Intervention group						Control group
	T0	T1	T2	T3	T4	T5	T0	T1	T2	T3	T4	T5
Concept (questionnaire)
Demographic variables	x						x
Physical activity (SQUASH)	x	x	x	x	x	x	x			x	x	x
Health Status (SF12)	x	x	x	x	x	x	x			x	x	x
Depressive symptoms (PHQ9)	x	x	x	x	x	x	x			x	x	x
Exercise self-efficacy (ESS)	x	x	x	x	x	x	x			x	x	x
Social support	x						x
Type D (DS14)	x						x
Diabetes self-efficacy	x	x	x	x	x	x	x			x	x	x
Quality of sleep	x	x	x	x	x	x	x			x	x	x
Patient satisfaction		x	x	x
Clinical measurements
BMI	x	x	x	x			Part of regular diabetes care*
Bloodpressure	x	x	x	x			Part of regular diabetes care*
Glycemic control (hemoglobin A_1C)	Part of regular diabetes care^*						Part of regular diabetes care*

To - baseline; T1 - after 12 weeks; T2 - after 24 weeks; T3 - after 36 weeks (end of intervention); T4 - after 1 year (post intervention); T5 - after 1 year and 36 weeks (post intervention); SQUASH - Short QUestionnaire to ASsess Health enhancing physical activity; SF12 - Short Form Health Survey 12; PHQ9 - Patient Health Questionnaire 9; ESS - Exercise self-efficacy scale; DS14 - Type D Scale-14; * up to 4 times a year.

ISSN: 1471-2458