Table 3.
ActiGraph Bias (95% CI); RMSE for Children
| Freedson (MET) |
Treuth (MET) |
Trost (kcal·min−2) |
Puyau (kcal·min−2) |
|||||
|---|---|---|---|---|---|---|---|---|
| Bias (95% CI) | RMSE | Bias (95% CI) | RMSE | Bias (95% CI) | RMSE | Bias (95% CI) | RMSE | |
|
| ||||||||
| Children | ||||||||
| Across All Activities | 0.1 (0.0, 0.3) | 1.1 | −0.2 (−0.3, −0.1) | 1.1 | −1.6 (−1.7, −1.4) | 1.9 | −2.2 (−2.4, −2.1) | 2.6 |
| Treadmill Activities | 0.5 (0.4, 0.7) | 1.0 | 0.1 (0.0, 0.3) | 0.7 | −1.2 (−1.3, −1.1) | 1.4 | −2.0 (−2.1, −1.9) | 2.1 |
| Activities of Daily Living | −0.2 (−0.4, 0.0) | 1.2 | −0.4 (−0.6, −0.2) | 1.3 | −1.8 (−2.0, −1.6) | 2.2 | −2.4 (−2.6, −2.1) | 2.9 |
| 3.22 km/hr 0% grade | 0.3 (0.1, 0.5) | 0.6 | 0.1 (0.0, 0.3) | 0.4 | −1.2 (−1.4, −1.1) | 1.3 | −1.6 (−1.7, −1.5) | 1.7 |
| 3.22 km/hr 3% grade | 0.1 (−0.1, 0.3) | 0.5 | −0.1 (−0.3, 0.0) | 0.5 | −1.5 (−1.7, −1.3) | 1.6 | −2.0 (−2.1, −1.9) | 2.0 |
| 4.83 km/hr 0% grade | 1.0 (0.7, 1.2) | 1.2 | 0.4 (0.2, 0.6) | 0.8 | −1.0 (−1.2, −0.8) | 1.1 | −2.1 (−2.2, −1.9) | 2.1 |
| 5.63 km/hr 0% grade | 0.9 (0.4, 1.3) | 1.4 | 0.2 (−0.2, 0.6) | 1.0 | −1.2 (−1.5, −0.9) | 1.5 | −2.5 (−2.7, −2.3) | 2.5 |
| Backpack (4.5 kg) | 1.0 (0.8, 1.3) | 1.2 | 0.5 (0.3, 0.7) | 0.8 | −0.9 (−1.1, −0.7) | 1.1 | −1.9 (−2.0, −1.8) | 1.9 |
| Basketball | −0.6 (−0.9, −0.3) | 1.0 | −1.5 (−1.8, −1.2) | 1.7 | −3.0 (−3.3, −2.8) | 3.1 | −4.6 (5.0, −4.3) | 4.7 |
| Bike | −1.9 (−2.3, −1.6) | 2.1 | −1.9 (−2.2, −1.6) | 2.1 | −3.3 (−3.6, −3.0) | 3.4 | −3.4 (−3.9, −3.0) | 3.6 |
| Crafts | 0.4 (0.3, 0.5) | 0.5 | 0.5 (0.5, 0.6) | 0.6 | −0.8 (−0.9, −0.6) | 0.9 | −0.8 (−0.9, −0.7) | 0.8 |
| Wii Tennis | −0.1 (−0.2, 0.1) | 0.4 | 0.0 (−0.2, 0.1) | 0.4 | −1.4 (−1.6, −1.2) | 1.5 | −1.5 (−1.7, −1.3) | 1.6 |
CI = Confidence Interval; RMSE = Root Mean Squared Error; km/hr = kilometers per hour; m = meters; sec = seconds; gr = grade. The values in bold indicate accurate estimates.