From: Why combine diet and physical activity in the same international research society?
Time Period | Diet | PA |
---|---|---|
24 hours | 24 hr. recall (14) | 24 hr. recall (12) |
 | 24 hr. food recognition (15) | 24 hr. physical activity recognition (16) |
 | Observation (19) | Observation (17–18) |
Week | 7-day food record (20) | 7-day activity recall (14) |
 | 7-day food frequency (21) |  |
Longer (months, years) | Food frequency (22–23) | Many activity inventories (14) |
Technology Assisted for Variable Time Units | Food Intake Recording Software System (24) | Activitygram |
 |  | Accelerometer (30) |
 | Camera (33–35) | Pedometer (29–30) |
 |  | Heart Rate Monitor (31–32) |
Biomarkers for Variable Time Units | Doubly labeled water (25) | Serum nutrients (26, 28) |