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Table 2 Joint moment variables.

From: Biomechanical analysis of rollator walking

Variable

Rollator (n = 7)

Normal (n = 7)

P-value

Ankle – sagittal

Peak plantar flexor

-138.9 (4.9)

-147.9 (5.2)

0.020

Plnt flex ang imp

-24.8 (5.6)

-28.5 (5.6)

0.007

Knee – sagittal

Peak knee extensor*

16.4 (19.7)

33.7 (14.5)

0.010

Peak knee flexor

-37.4 (17.0)

-17.4 (14.7)

0.001

Peak knee extensor**

18.6 (4.0)

31.0 (11.9)

0.010

Knee ext ang imp

1.9 (2.0)

3.8 (2.0)

0.000

Hip – sagittal

Peak hip extensor

-118.3 (20.6)

-99.6 (25.6)

0.197

Peak hip flexor

64.0 (12.8)

92.7 (16.9)

0.000

Hip ext ang imp

-13.3 (3.2)

-8.1 (2.7)

0.000

Hip flex amg imp

7.3 (2.5)

12.1 (3.2)

0.000

Hip – frontal

Peak hip abductor*

58.2 (8.3)

66.0 (7.1)

0.017

Peak hip abductor**

51.1 (14.7)

56.3 (8.8)

0.114

Hip abd ang imp

21.6 (5.5)

24.0 (2.7)

0.085

  1. Values are means (SD). Peak moments are expressed as Nm/kg·100. Plantar flexor angular impulse (Plnt. flex. ang. imp), knee extensor angular impulse in the first half of stance (Knee ext. ang. imp.), hip extensor/flexor angular impulses (Hip ext./flex. ang. imp.) are expressed as Nm·s. *Peak moment in the first half of the stance phase. ** Peak moment in the second half of the stance phase.