Table 1.
Cut-points for acceleration output in mg (counts∙min−1) retrieved by evaluating smoothing splines fitted to the acceleration output and energy expenditure for each age group.
| Filter | Age Group | 1.5 METs (LPA) | 3 METs (MPA) | 6 METs (VPA) | 9 METs (VVPA) |
|---|---|---|---|---|---|
| Children | ActiGraph | 16.1 (531) | 63.0 (2100) | 171.0 (5865) | 242.9 (8417) |
| 4 Hz | 37.4 (3798) | 158.5 (16,326) | 557.9 (59,164) | 858.8 (91,721) | |
| 10 Hz | 51.9 (5345) | 214.1 (22,275) | 703.5 (74,836) | 1075.4 (115,022) | |
| High-pass | 56.8 (5873) | 238.2 (24,858) | 782.1 (83,313) | 1186.3 (126,992) | |
| Adults | ActiGraph | 19.1 (632) | 76.9 (2570) | 208.1 (7164) | 300.2 (10,494) |
| 4 Hz | 30.8 (3113) | 133.7 (13,692) | 498.1 (52,709) | 881.2 (94,188) | |
| 10 Hz | 38.9 (3983) | 167.2 (17,284) | 582.3 (61,748) | 994.1 (106,307) | |
| High-pass | 39.3 (4026) | 170.0 (17,595) | 606.2 (64,329) | 1050.4 (112,371) |
METs, metabolic equivalents; LPA, light physical activity; MPA, Moderate physical activity; VPA, vigorous physical activity; VVPA, very vigorous physical activity.