Table 4.
Positive, non-, and negative responders in the intervention group and mean changes in gait performance (per protocol analysis)
| All | Negative responders | Non-responders | Positive responders | |||||
|---|---|---|---|---|---|---|---|---|
| n | Mean change (SD) | % | Mean change (SD) | % | Mean change (SD) | % | Mean change (SD) | |
| Single task | ||||||||
| Walking speed, m/sec | 89 | −0.03 (0.21) | 35% | −0.22 (0.09) | 48% | −0.01 (0.05) | 17% | 0.32 (0.19) |
| Stride length, cm | 89 | −2.07 (14.98) | 26% | −19.59 (10.15) | 57% | −0.75 (5.42) | 17% | 20.30 (9.81) |
| Double support, % of stride time | 89 | 3.57 (12.58) | 29% | 18.99 (8.62) | 61% | −0.57 (4.69) | 10% | −16.15 (6.08) |
| Dual task, counting backwards | ||||||||
| Walking speed, m/sec | 62 | 0 (0.26) | 39% | −0.26 (0.11) | 23% | −0.02 (0.04) | 39% | 0.27 (0.14) |
| Stride length, cm | 62 | 2.06 (17.08) | 19% | −18.36 (7.05) | 50% | −2.18 (4.88) | 31% | 21.87 (13.99) |
| Double support, % of stride time | 62 | 3.16 (14.32) | 29% | 20.67 (9.37) | 55% | −0.36 (5.56) | 16% | −16.44 (4.76) |
| Dual task, naming animals | ||||||||
| Walking speed, m/sec | 61 | 0.02 (0.29) | 34% | −0.27 (0.12) | 31% | −0.01 (0.06) | 34% | 0.33 (0.23) |
| Stride length, cm | 61 | 3.49 (19.36) | 23% | −18.66 (7.34) | 49% | 0.94 (6.27) | 28% | 26.21 (17.33) |
| Double support, % of stride time | 61 | −0.14 (14.68) | 23% | 21.12 (9.04) | 56% | −1.99 (4.65) | 21% | −18.20 (6.27) |
n: number, SD: standard deviation