Table 2 Schedule of assessments

Expression of interest

x

Physical activity status: General Practice Physical Activity Questionnaire) [27]

x

Eligibility screening telephone call

x

Personal identifiers and demographic information

x

Current medications

x

Smoking history

x

Alcohol consumption

x

Mobility

x

Diseases/conditions

x

x

Wrist worn accelerometer (worn for up to 8 days) (axivity)

x

x

Anxiety and depression: HADS [38]

x

x

Healthcare utilisation

x

Household income/composition

x

Productivity

x

Sedentary behaviours: Workforce Sitting Questionnaire [36] and sedentary behaviour item from the International Physical Activity Questionnaire [37]

x

x

Enjoyment of physical activity: Physical Activity Enjoyment Scale [39]

x

x

Self-efficacy for exercise and Exercise Self-efficacy Questionnaire [40]

x

x

Habit strength (Snacktivity™ group only): The Self-Report Habit Index [41]

x

SnackApp™ engagement analytics (Snacktivity™ group only)

x

Height^a

x

Weight

x

x

Body mass index (BMI)

x

x

Waist circumference

x

x

Lower limb muscle strength (Takei dynamometer squat position)

x

x

Blood pressure

x

x

Checklist of popular snacks (paper copy, Snacktivity™ group only)

x

Semi-structured interviews (Snacktivity™ intervention group and health care providers)

x

x

Single item study feedback questions

x