Table 2.
Normal limits by sex and age of the spatial gait parameters.
| Stride length | Mean | SD | Normal limits (95%) | Normal limits (99%) | N | |||
|---|---|---|---|---|---|---|---|---|
| 65–79 | Men 65–79 | 110.7 | 18.8 | 73.2 | 148.24 | 61.9 | 160 | 71 |
| Women 65–79 | 87.7 | 18.5 | 51 | 124.7 | 39.71 | 135.75 | 98 | |
| >79 | Men >79 | 73.1 | 25.1 | 25.9 | 126 | 10.8 | 141.5 | 98 |
| Women >79 | 63.1 | 20.5 | 22.2 | 104.6 | 9.9 | 116.4 | 164 | |
| TOTAL | (weighted) | 88.5 | 26.1 | 36.4 | 140.6 | 20.8 | 156.2 | 431 |
| Normalized stride length* | Mean | SD | Normal limits (95%) | Normal limits (99%) | N | |||
| 65–79 | Men 65–79 | 0.66 | 0.11 | 0.44 | 0.89 | 0.37 | 0.95 | 71 |
| Women 65–79 | 0.57 | 0.12 | 0.33 | 0.8 | 0.26 | 0.87 | 98 | |
| >79 | Men >79 | 0.47 | 0.15 | 0.16 | 0.77 | 0.07 | 0.86 | 98 |
| Women >79 | 0.41 | 0.13 | 0.15 | 0.68 | 0.07 | 0.75 | 164 | |
| TOTAL | (weighted) | 0.55 | 0.15 | 0.25 | 0.86 | 0.16 | 0.95 | 431 |
| Step width | Mean | SD | Normal limits (95%) | Normal limits (99%) | n | |||
| 65–79 | Men 65–79 | 10 | 4.5 | 1.1 | 19 | −1.6 | 21.6 | 71 |
| Women 65–79 | 9.4 | 3.8 | 1.9 | 17 | −0.4 | 19.2 | 98 | |
| >79 | Men >79 | 12.5 | 4.9 | 2.6 | 22.3 | −0.3 | 25.2 | 98 |
| Women >79 | 11.4 | 4.5 | 2.4 | 20.5 | −0.3 | 23.2 | 164 | |
| TOTAL | (weighted) | 10.3 | 4.37 | 1.6 | 19.8 | −1 | 21.7 | 431 |
| Ratio width-length** | Median | IQR | Normal limits (95%) | Normal limits (99%) | n | |||
| 65–79 | Men 65–79 | 16.2 | 9.3 | 1.9 | 34 | 1.6 | 44 | 71 |
| Women 65–79 | 16.1 | 8.9 | 4 | 36.5 | 0.8 | 78.7 | 98 | |
| >79 | Men >79 | 28.2 | 24.7 | 5.4 | 87.7 | 4.1 | 95.5 | 98 |
| Women >79 | 26.8 | 26.7 | 4 | 82.6 | 1.1 | 93.9 | 164 | |
| TOTAL | (weighted) | 17.4 | 15 | 4.1 | 68.8 | 0.9 | 100 | 431 |
*Stride length normalized to subject height.
**Step width/normalized stride length.