Table 1. Description of previous-day recall instruments and study designs
| Â | ACT24: PA | PAR: IA | MARCA: AU | cpar24: DE |
|---|---|---|---|---|
Instrument Characteristics | ||||
 Mode of administration | self-administered via computer | computer-assisted telephone interview | computer-assisted telephone interview | self-administered via computer |
 Number of activities | 213 | 270 | 520 | 262 |
 Contextual and behavioral domains | Sleep/napping; Personal care; Household chores; Transportation; Communicating; Leisure/social; Shopping/errands/appointments; Caring/play; Work for pay; Exercise/sports/recreation; Lawn and garden; Maintenance/repair; Church/spiritual; Miscellaneous | Location: Work/Volunteer; Home Indoors; Home Outdoors; Transportation; Community Primary purpose: Work (paid job); Home/family; Volunteering; Exercise/Sports; Education; Leisure | Physical activity; Screen time; Chores; Work/study; Sociocultural; Self-care; Transport; Sleep; Quiet time | Sleep/reclining; Personal care; Food preparation/eating; Walking/transportation; Household chores; Occupational activity; Shopping/errands/appointments; Leisure/hobbies; Sports; Family and social; Outdoor; Lawn and garden; Miscellaneous |
 Length of recall completion | median 30 minutes | mean 20 minutes | mean 15 minutes | mean 30 minutes |
 Number activities reported/day | 24.2 (SD=7.9) | 25.3 (SD=7.6) | 32.8 (SD=11.7) | 23.1 (SD=9.7) |
 Compendium used | Ainsworth 2000 | Ainsworth 2011 | Ainsworth 2011; Ridley 2008 | Ainsworth 2011 |
 Assessment of Posturea | Yes | Yes | Yes | Yes |
 Sedentary classification | Sitting or reclining activities during waking day, and low energy expenditure (typically < 1.8 METs)a | Any waking activity ≤ 1.5 METs, regardless of body position | Any activity expected to elicit ≤ 1.5 METs undertaken in a seated or lying position while awake | Any out of bed activity ≤ 1.5 METs, regardless of body position |
 Light intensity activity | Non-sedentary, < 3 METs | 1.6 to 2.9 METs | 1.6 to 2.9 METs | 1.6 to 2.9 METs |
 Moderate-vigorous activity | ≥ 3 METs | ≥ 3 METs | ≥ 3 METs | ≥ 3 METs |
Study Design(s) | ||||
 Sample-size (N) | 1,020 | 1,468 | 2,307 | 3,491 |
 Age range | 50-74 yrs | 20-69 yrs | 16-93 yrs | 20-69 yrs |
 Location | Pittsburgh, PA USA | Iowa, USA | Australia, New Zealand | Germany |
 Study type | Observational | Observational | Observation; interventions | Observational |
 Sampling frame | Convenience sample | Stratified random sample | Convenience sample | Stratified random sample |
 Time-frame (calendar years) | 2012-13 | 2014-18 | 2008-16 | 2014-present |