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Table 4 Baseline outcomes in the control, exercise, and exercise + whole-body vibration (WBV) groups

From: Improving pain, function and quality of life in end-stage knee osteoarthritis: a patient-preference cohort study on whole-body vibration and exercise as bridging therapies for total knee replacement

 

Control

(n = 201)

Exercise

(n = 227)

Exercise + WBV (n = 127)

P-value

The 1st session

 NPRS

5.81 ± 1.74a

5.35 ± 2.11a

5.57 ± 1.82

0.045*

 Diseased leg ROM (°)

106.89 ± 18.33

107.89 ± 17.95

110.68 ± 16.52

0.164

Gait, n (%)

 Normal

71 (35.0)

(35.3)

75 (36.9)

(33.0)

57 (28.1)

(44.9)

0.077

 Limping

130 (36.9)

(64.7)

152 (43.2)

(67.0)

70 (19.9)

(55.1)

 

 Knee Society Score

60.85 ± 12.55

61.90 ± 19.68

61.20 ± 17.52

0.806

 Knee Society Functional Assessment

59.08 ± 13.66b

59.13 ± 15.14c

63.66 ± 17.12b,c

0.012*

 KOOS-KP

-

52.24 ± 18.60

54.31 ± 16.95

0.302

 KOOS-S

-

49.83 ± 21.86

57.27 ± 19.56

0.002*

 KOOS-ADL

-

62.44 ± 20.41

66.99 ± 19.42

0.072

 KOOS-Sport/Rec

-

29.93 ± 22.50

38.20 ± 22.93

0.004*

 KOOS-QOL

-

37.12 ± 21.09

35.96 ± 18.19

0.646

 Time and up go

15.23 ± 8.57

14.59 ± 5.70

13.35 ± 6.24

0.060

 30-s chair stand

7.57 ± 3.72

8.11 ± 4.39

8.10 ± 3.25

0.298

 Functional reach

-

21.61 ± 4.70

23.42 ± 6.51

0.003*

  1. P-values after post-hoc Bonferroni multiple comparison correction: a Between Exercise and Control; P = 0.039; b Between Exercise + WBV and Control; P = 0.023; c Between Exercise + WBV and Exercise; P = 0.021
  2. NPRS = Numeric Pain Rating Scale; ROM = Range of Motion; WBV = Whole Body Vibration; KOOS = Knee injury and Osteoarthritis Outcome Score; KOOS-KP = Knee injury and Osteoarthritis Outcome score–Knee Pain; KOOS-S = Knee injury and Osteoarthritis Outcome score–Other Symptoms; KOOS-ADL = Knee injury and Osteoarthritis Outcome score–Activities of Daily Living; KOOS-Sport/Rec = Knee injury and Osteoarthritis Outcome score–Sport and Recreation function; KOOS-QOL = Knee injury and Osteoarthritis Outcome score–knee-related Quality of Life
  3. * Statistical significance (P < 0.05)