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Table 5 Comparison of angular velocity parameters between elderly and very elderly women

From: An exploratory investigation of changes in gait parameters with age in elderly Japanese women

Parameters Group 1 (elderly women) Group 2 (very elderly women) p value Effect size
Hip joint
 First peak extension angular velocity (°/s) 139.6 ± 26.2 129.5 ± 22.9 NS 0.41
 First peak extension timing (%) 21.2 ± 2.9 20.3 ± 3.5 NS 0.28
 Second peak extension angular velocity (°/s) 43.1 ± 21.8 41.5 ± 17.2 NS 0.08
 Second peak extension timing (%) 93.2 ± 2.7 94.7 ± 2.1 <0.05 0.62
 Peak flexion velocity (°/s) −232.7 ± 29.5 −226.8 ± 39.7 NS 0.17
 Peak flexion timing (%) 66.8 ± 1.6 67.8 ± 1.5 <0.05 0.64
Knee joint
 First peak extension angular velocity (°/s) 95.3 ± 27.5 87.0 ± 29.0 NS 0.29
 First peak extension timing (%) 23.9 ± 3.1 23.1 ± 3.9 NS 0.23
 Second peak extension angular velocity (°/s) 403.6 ± 50.7 379.2 ± 55.4 NS 0.46
 Second peak extension timing (%) 88.7 ± 1.1 89.0 ± 1.3 NS 0.25
 First peak flexion angular velocity (°/s) −176.8 ± 47.7 −157.1 ± 38.6 NS 0.45
 First peak flexion timing (%) 5.9 ± 1.3 6.0 ± 1.3 NS 0.07
 Second peak flexion angular velocity (°/s) −400.1 ± 50.7 −378.0 ± 52.9 NS 0.42
 Second peak flexion timing (%) 62.3 ± 1.1 63.2 ± 1.6 <0.05 0.65
Ankle joint
 First peak plantarflexion angular velocity (°/s) 275.2 ± 43.8 264.9 ± 44.9 NS 0.23
 First peak plantarflexion timing (%) 57.3 ± 2.1 58.5 ± 1.5 <0.05 0.65
 Second peak plantarflexion angular velocity (°/s) 81.7 ± 23.8 87.7 ± 33.8 NS 0.66
 Second peak plantarflexion timing (%) 91.8 ± 2.6 92.4 ± 2.7 NS 0.22
 First peak dorsiflexion angular velocity (°/s) −111.1 ± 21.0 −104.4 ± 20.7 NS 0.32
 First peak dorsiflexion timing (%) 12.0 ± 1.9 11.3 ± 1.6 NS 0.40
 Second peak dorsiflexion angular velocity (°/s) −167.3 ± 41.9 −161.2 ± 52.0 NS 0.13
 Second peak dorsiflexion timing (%) 71.3 ± 2.9 72.5 ± 2.4 NS 0.45
  1. All values are presented as mean ± standard deviation, unless otherwise stated
  2. NS not significant