Table 2. Effects of dual task performance, instructed focus, and task difficulty on secondary spatiotemporal measures.
Usual-base walking | Narrow-base walking | |||||
---|---|---|---|---|---|---|
Single task | Dual task | Single task | Dual task | |||
Walking focus | Cognitive focus | Walking focus | Cognitive focus | |||
Stride length (m) | 1.68 (0.15) | 1.68 (0.15) | 1.63 (0.15) | 1.64 (0.17) | 1.61 (0.15) | 1.61 (0.16) |
Cadence (steps/min) | 134 (15) | 135 (16) | 132 (16) | 129 (17) | 130 (18) | 130 (18) |
Step width (cm) | 14 (2) | 14 (2) | 14 (2) | 7 (2) | 7 (2) | 8 (2) |
Step width variability (%) | 14.6 (4.7) | 15.7 (6.0) | 13.3 (4.5) | 23.0 (8.3) | 23.7 (9.5) | 21.8 (9.4) |
Stride time variability (%) | 3.8 (2.7) | 2.1 (0.7) | 2.0 (0.5) | 3.6 (1.6) | 2.5 (1.2) | 2.2 (0.6) |
Values represent the mean (standard deviation)