Skip to main content

Table 5 Longitudinal comparisons of outcomes and scores among the exercise group and exercise + whole-body vibration (WBV) group

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

  

The 1st session

Final session

P value

Difference in mean values between the 1st session and Final session

P value (between Exercise + WBV group and Exercise group)

Pain

 NPRS

Exercise

5.35 ± 2.11

4.88 ± 1.96

 < 0.001*

 − 0.47 ± 1.59

0.014*

Exercise + WBV

5.57 ± 1.82

4.65 ± 2.15

 < 0.001*

 − 0.92 ± 1.78

 

Range of motion and gait

  

 Diseased ROM

Exercise

107.89 ± 17.95

107.42 ± 17.36

0.444

 − 0.47 ± 9.18

 < 0.001*

Exercise + WBV

110.68 ± 16.52

115.43 ± 18.59

 < 0.001*

4.76 ± 11.46

 

 Gait, N (%)

Exercise

     

Normal

75 (44.4)

(33.0)

70 (72.2)

(30.8)

0.689

-

-

Limping

152 (45.9)

(67.0)

157 (77.7)

(69.2)

 

-

 

Exercise + WBV

     

Normal

57 (49.6)

(44.9)

58 (50.4)

(45.7)

0.900

-

-

Limping

70 (50.4)

(55.1)

69 (49.6)

(54.3)

 

-

 

Knee function and quality of life

 Knee Society Score

Exercise

61.90 ± 19.68

65.34 ± 19.18

 < 0.001*

3.44 ± 13.84

0.006*

Exercise + WBV

61.20 ± 17.52

68.86 ± 17.06

 < 0.001*

7.65 ± 13.90

 

 Knee Society Functional Assessment

Exercise

59.13 ± 15.14

61.82 ± 15.28

 < 0.001*

2.69 ± 10.50

0.161

Exercise + WBV

63.66 ± 17.12

68.07 ± 16.75

 < 0.001*

4.41 ± 11.37

 

KOOS

 KOOS-KP

Exercise

52.24 ± 18.60

51.95 ± 19.38

0.729

 − 0.30 ± 12.84

 < 0.001*

Exercise + WBV

54.31 ± 16.95

60.04 ± 17.13

 < 0.001*

5.73 ± 14.07

 

 KOOS-S

Exercise

48.83 ± 21.86

49.25 ± 22.05

0.024*

 − 0.58 ± 16.84

0.038*

Exercise + WBV

57.27 ± 19.56

60.50 ± 18.07

0.033*

3.23 ± 15.94

 

 KOOS-ADL

Exercise

62.44 ± 20.41

61.56 ± 19.93

0.399

 − 0.88 ± 15.56

0.005*

Exercise + WBV

66.99 ± 19.42

71.52 ± 16.32

0.003*

4.53 ± 14.20

 

 KOOS-Sport/Rec

Exercise

29.94 ± 22.50

33.58 ± 24.04

0.007*

3.64 ± 20.05

0.430

Exercise + WBV

38.20 ± 22.93

43.83 ± 22.96

0.011*

5.63 ± 20.36

 

 KOOS-QOL

Exercise

37.12 ± 21.09

36.67 ± 21.07

0.694

 − 0.45 ± 17.33

0.133

Exercise + WBV

35.96 ± 18.19

38.71 ± 19.72

0.112

2.75 ± 16.16

 

Balance, lower extremity strength and functional reach

 Timed Up and Go

Exercise

14.59 ± 5.70

13.48 ± 5.52

 < 0.001*

 − 1.11 ± 4.58

0.146

Exercise + WBV

13.35 ± 6.24

11.49 ± 3.88

 < 0.001*

 − 1.87 ± 4.94

 

 30-s chair stand

Exercise

8.11 ± 4.39

7.94 ± 3.43

0.499

 − 0.17 ± 3.82

 < 0.001*

Exercise + WBV

8.10 ± 3.25

9.32 ± 3.64

 < 0.001*

1.22 ± 2.84

 

 Functional reach

Exercise

21.61 ± 4.70

23.46 ± 5.49

 < 0.001*

1.85 ± 5.25

0.002*

Exercise + WBV

23.42 ± 6.51

27.77 ± 7.55

 < 0.001*

4.35 ± 7.85

 
  1. MCID = Minimal Clinically Important Difference; MDC = Minimal Detectable Change; 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
  2. * Statistical significance (P < 0.05)