Table 4 Spatiotemporal parameters (STPs) averaged for left and right foot and stride time variability in participants with PsA and healthy matched controls before and after adjustment for BMI

Cadence (step/min)

107.91 ± 10.78

107.47 (2.12)

120.08 ± 6.8^a

120.55 (2.17) ^b

1.3

Gait cycle duration (s)

1.13 ± 0.14

1.13 (0.03)

1.00 ± 0.06^a

1.00 (0.03) ^b

1.2

Gait speed (m/s)

1.07 ± 0.23

1.10 (0.05)

1.35 ± 0.2^a

1.38 (0.06) ^b

1.3

Stride length (m)

1.17 ± 0.18

1.19 (0.04)

1.34 ± 0.13^a

1.32 (0.04)

1.08

Double support (% GCT)

22.00 ± 4.13

21.43 (0.79)

17.95 ± 2.7^a

18.55 (0.81)

1.16

Swing time (% GCT)

39.0 ± 2.08

39.28 (0.40)

41.03 ± 1.36^a

40.73 (0.41)

1.15

Foot strike angle (degrees)

24.99 ± 3.79

25.16 (0.80)

28.15 ± 2.97^a

27.97 (0.82)

0.92

Stride time variability (%)

4.03 ± 3.56

4.49 (0.58)

2.32 ± 0.72^a

1.84 (0.60) ^b

0.68