Table 1 Description of equipment and software
From: Mechanical and free living comparisons of four generations of the Actigraph activity monitor
Model | Dimensions (cm) | Band pass (Hz) | Dynamic range (g) | Sampling frequency (Hz) | Accelerometer | Firm ware |
|---|---|---|---|---|---|---|
AM7164 | 5.1 x 4.1 x 1.5 | 0.21-2.28 | 0.05-2.13 | 10 Hz | Piezoelectric | v. 2.2 |
GT1M | 3.8 x 3.7 x 1.8 | 0.25-2.5 | 0.05-2.5 | 30 Hz | Solid state (MEMS) | v. 7.5.0 |
GT3X | 3.8 x 3.7 x 1.8 | 0.25-2.5 | ± 3 | 30 Hz | Solid state (MEMS) | v. 4.4.0 |
GT3X+ | 4.6 x 3.3 x 1.5 | 0.25-2.5 | ± 6 | 30-100 Hz | Solid state (MEMS) | v. 2.1.0 |