Table 1. Criteria for collating activities captured by the MARCA into four energy expenditure bands by activity intensity (Model 1), or nine common ‘superdomains’ by activity type (Model 2).
Criteria for grouping by activity intensity: Model 1 | ||
Energy expenditure bands | Activity intensity requirement | |
1 | MVPA | ≥3 METs |
2 | LPA | 1.6–2.9 METs |
3 | SB | ≤1.5 METs |
4 | Sleep | Based on self-report sleep and wake times |
Criteria for grouping by activity type: Model 2 | ||
‘Superdomain’ | Activity types categorised into ‘superdomain’ | |
1 | Physical activity | Sports/exercise |
Active transport | ||
2 | Chores | Indoor chores |
Outdoor chores | ||
3 | Self-care | Grooming/bathing |
Eating | ||
4 | Socio-cultural | Socialising |
Communicating | ||
Religious | ||
Other cultural | ||
5 | Transport | Passive transport (car, public transport) |
6 | Work/study | Occupational, non-screen |
7 | Screen time | Television |
Computer use | ||
8 | Quiet time | Reading |
Non-reading | ||
9 | Sleep |
Key: LPA, light intensity physical activity; MET, metabolic equivalent of task where 1 MET is equivalent to around 3.5 ml of oxygen consumed per kg of body mass per minute; MVPA, moderate to vigorous intensity physical activity; SB, sedentary behaviour