Table 1.
Comparison of motion capture devices used in the study.
| GemSense Red Amber (Including Battery Extension) | Ascension trakSTAR System with Model 180 Sensor | |
|---|---|---|
| Size | 24 mm diameter | 2 mm diameter, 9.9 mm length (not including cable) |
| Mass | 25 g | <5 g (not including cable) |
| Accuracy | Not available | Position: 1.4 mm RMS, angle: 0.5° RMS |
| Range | Dependent on Bluetooth (approx. 10 m) | 58 cm at highest accuracy level |
| Approximate cost | USD 40 | USD 4000 (for a one-sensor setup) |
| Sample rate | 50 Hz | 200 Hz (maximum is 255 Hz) |