Skip to main content

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.