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Table 3 Inertial sensor SPEED results in functional activities before and after genicular blockade

From: Lower limb kinematics improvement after genicular nerve blockade in patients with knee osteoarthritis: a milestone study using inertial sensors

  Pre Post Paired t-test Reliability Healthy group
Mean (SD) p value diff SEM Mean (SD)
Walking
 Pelvis SPEED (°/s)
  Sagittal 59.4 (25.8) 65.7 (29.1) 0.59 6.3 17.4 81.8 (33.6)
  Frontal 59.2 (26.7) 71.1 (32.8) 0.133 11.9 8.8 107.9 (38.5)
  Transverse 58.7 (17.3) 61.8 (23.8) 0.152 3.1 7.8 89.9 (31.8)
 Hip SPEED (°/s)
  Sagittal 191.5 (63.8) 245.7 (46.6) 0.002 54.2 29.7 316.3 (85.6)
  Frontal 137.0 (55.1) 166.4 (80.6) 0.233 29.4 27.6 131.1 (43.2)
  Transverse 180.7 (69.2) 226.4 (105.6) 0.002 45.7 34.9 197.4 (61.6)
 Knee SPEED (°/s)
  Sagittal 518.5 (179.1) 593.3 (97.4) 0.244 75.1 64.1 655.2 (133.3)
 Ankle SPEED (°/s)
  Sagittal 316.8 (129.1) 364.5 (104.8) 0.138 47.7 66 394.5 (106.9)
Upstairs
 Pelvis SPEED (°/s)
  Sagittal 65.2 (27.2) 65.2 (25.2) 0.997 0 7.2 53.6 (14.4)
  Frontal 59.3 (22.3) 73.4 (25.5) 0.646 14 19.1 59.5 (26.0)
  Transverse 79.8 (22.4) 83.4 (22.0) 0.035 3.6 12.9 53.7 (21.8)
 Hip SPEED (°/s)
  Sagittal 251.1 (45.2) 278.7 (53.1) 0.349 27.6 12.6 272.2 (40.9)
  Frontal 138.5 (48.9) 156.5 (37.8) 0.215 18 21.2 103.7 (50.7)
  Transverse 205.5 (73.5) 226.2 (78.8) 0.074 20.6 26.4 158.7 (65.9)
 Knee SPEED (°/s)
  Sagittal 436.1 (109.9) 492.6 (81.1) 0.638 56.6 44.2 521.6 (125.5)
 Ankle SPEED (°/s)
  Sagittal 354.5 (93.5) 340.3 (101.3) 0.08 −14.2 24.1 362.1 (120.7)
Downstairs
 Pelvis SPEED (°/s)
  Sagittal 70.7 (30.3) 92.9 (40.6) 0.137 22.2 11.1 93.2 (50.8)
  Frontal 76.6 (39.0) 83.1 (30.1) 0.542 6.5 15.4 92.2 (37.5)
  Transverse 101.0 (33.9) 114.0 (24.9) 0.19 13 16.7 84.7 (27.7)
 Hip SPEED (°/s)
  Sagittal 172.7 (55.3) 221.9 (64.4) 0.063 49.2 40.6 245.1 (89.1)
  Frontal 109.3 (36.3) 163.0 (63.0) 0.015 53.7 15.9 109.2 (39.4)
  Transverse 192.2 (85.1) 229.3 (79.4) 0.158 37.1 57.9 219.1 (69.4)
 Knee SPEED (°/s)
  Sagittal 407.0 (139.0) 501.4 (93.9) 0.018 94.5 37.3 567.9 (145.6)
 Ankle SPEED (°/s)
  Sagittal 414.0 (137.7) 462.7 (123.7) 0.232 48.7 39.8 512.4 (117.4)
  1. SD Standard deviation, SEM Standard error of measurement, paired t-test Difference between pre-injection parameters and post-injection parameters, SPEED Angular speed range