| 
  
    | Table 1 Step length, cadence and percentage of contact time during walking. Values are means (±SD) |  
    | 
| Shoes conditions | Speed (km·h-1) | US | WS |  
| Step length (m) | 3 | .57 (.04) | .52 (.03) * |  
| 4 | .65 (.05) | .63 (.03) |  
| 5 | .74 (.04) | .72 (.03) * |  
| 6 | .83 (.04) | .80 (.03) * |  
| 7 | .88 (.05) | .85 (.05) * |  
| Cadence (step·min-1) | 3 | 43.8 (3.2) | 48.5 (2.9) * |  
| 4 | 51.3 (3.9) | 53.1 (2.8) * |  
| 5 | 56.0 (2.9) | 57.9 (2.1) |  
| 6 | 60.6 (2.7) | 62.9 (2.4) * |  
| 7 | 66.8 (3.7) | 69.2 (4.4) * |  
| Percentage of contact time (%) | 3 | 67.1 (1.5) | 68.2 (1.2) |  
| 4 | 66.2 (1.4) | 66.3 (1.2) |  
| 5 | 64.5 (1.2) | 64.4 (1.2) |  
| 6 | 63.3 (.6) | 62.6 (.7) |  
| 7 | 61.8 (1.2) | 61.8 (.9) |  |  
  
    | US: unstable shoes, WS: walking shoes. |  
  
    | * Significantly different from US. |  |