Table 2 Concentrations of O₂Hb and HHb and gait performance measures during all three walking tasks

 O₂Hb left (μmol/L)

0.32 (−0.18–0.82)

0.49 (0.14–0.84)

0.44 (0.09–0.78)

 O₂Hb right (μmol/L)

0.31 (−0.12–0.75)

0.46 (0.12–0.81)

0.36 (0.03–0.70)

 HHb left (μmol/L)

0.03 (−0.28–0.33)

0.01 (−0.15–0.17)

−0.03 (−0.16–0.10)

 HHb right (μmol/L)

0.00 (−0.28–0.28)

−0.02 (−0.25–0.21)

−0.10 (−0.24–0.05)

 Gait speed (cm/s)

83.7 (73.7–93.7)

82.3 (71.8–92.9)

79.9 (68.2–91.6)

 Cadence (steps/min)

94.6 (86.2–103)

93.2 (84.6–101.9)

94.0 (84.0–104.0)

 Stride length (cm)

106.3 (97.7–114.9)

106 (96.6–115.4)

101.2 (91.5–111.0)**

 Stride length variability (%)

4.2 (3.2–5.2)

4.5 (2.9–6.2)

5.4 (4.4–6.5)*

 Stride time (s)

1.3 (1.2–1.4)

1.3 (1.2–1.4)

1.3 (1.2–1.5)

 Stride time variability (%)

4.2 (2.4–5.9)

4.0 (2.9–5.2)

3.6 (2.7–4.6)