Table 1 Characteristics of questionnaires used previously to measure components of PA in persons who use wheelchairs

Items/administration/duration

46-item semi-structured interview or self-administered questionnaire (20–30 min)

13-item self-administered questionnaire (~15 min)

Semi-structured interview whereby a series of flow charts help the interviewer guide the participants through 8 periods of the day (20–45 min)

Timeframe

7 days

7 days

3 days

Dimensions

1. Exercise

2. LTPA

3. General activity

4. Therapy

5. Employment/school

6. Wheelchair use

1. Home repair/gardening

2. Housework

3. Vigorous sport

4. Moderate sport

5. Occupation

1. LTPA

2. ADL

Outcome

Score is based on the time respondents spend doing the activities multiplied by an intensity rating of that activity. Each activity has an assigned weighting (Aerobic = .3, strength = .2 and flexibility = .1). Higher scores represent more activity and negative scores can be achieved through sedentary behaviour

Number of days per week and hours per day of participation in above dimensions. Intensity of activity is established by multiplying the average hours per day for each item by a standard MET value (MET-h/day)

The mean number of minutes per day spent in mild, moderate, and heavy intensity LTPA and ADL. Scores may be summed to generate total accumulated PA (min/day)