Table 1. Age, height, mass, kinematic and spatio-temporal parameters for the subjects in the Backward (BW) and Forward (FW) groups (mean±standard deviation).
| BW (13 subjects) | FW (12 subjects) | |
| Age (years) | 26.2±7.1 | 26.9±4.8 |
| Height (m) | 1.79±0.10 | 1.79±0.10 |
| Mass (kg) | 69.0±5.5 | 76.0±11.3 |
| 1st knee movement (ms) | 318±81 | 355±65 |
| Right Heel Off (RHO) (ms) | 662±117 | 745±93.3 |
| Right Heel Strike (RHS) (ms) | 1250±125 | 1333±100 |
| Reaction Time (ms) | 287±80 | 316±79 |
| APA duration (ms) | 375±82 | 429±66 |
| Gait initiation duration (ms) | 961±90 | 1017±68 |
| Backward COP shift (cm) | 5.3±0.8 | 4.9±1.1 |
| COM speed at the RHS (m/s) | 1.00±0.08 | 0.98±0.05 |
The spatio-temporal parameters were calculated from the appearance of the visual start signal. There is no significant difference between the two groups (p>0.05). APA: anticipatory postural adjustments. COP: center of pressure COM: center of mass.