Table 1.
Comparison of force treadmill specifications and mechanical performance
| Property | (units) | Kram [5] | Belli [6] | Dierick [8] | Paolini [17] | Collins et al. |
|---|---|---|---|---|---|---|
| belt | single | split | single | tri | split | |
| belt length | (m) | 1.5 | 2.0 | 1.5 | 2.8 | 1.9 |
| belt width | (m) | 0.35 | 0.50 | 0.50 | 0.66 | 1.1 |
| sprung mass | (Kg) | 90 | 250 | 190 | - | 140 |
| natural freq. | (Hz) | 87 | 58 | 30 | 210 | 41 |
| motor power | (kW) | 1.5 | 1.5 | 2.2 | - | 2.5 |
| speed dev. | (m·s−1) | 0.02 | 0.03 | 0.09 | 0.15 | 0.02 |
| noise freq. | (Hz) | 46 | 17 | 30 | 24 | 40 |
| noise mag. | (N) | 80 | 5 | 5 | 10 | 50 |
freq. is frequency, dev. is deviation, and mag. is magnitude