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Table 3 Separate repeated measure ANOVA tests for variables (anterior and posterolateral directions of modified star excursion balance test, and hop-test) with significant interaction to compare time effect in each group

From: The effect of the combination of whole body vibration and shoe with an unstable surface in chronic ankle instability treatment: a randomized clinical trial

Variable

Group

Pre-intervention

Post-intervention

Follow-up

F

P

Modified star excursion balance test (%)

 Anterior

WBV-S

59.95 (7.86)

70.61 (11.73)

71.35 (13.12)

F 2, 22 = 8.45

0.002 † ‡

WBV

62.99 (10.02)

73.64 (11.42)

69.91 (10.53)

F 2, 22 = 8.32

0.002 † ‡

CON

60.04 (8.07)

59.82 (5.30)

60.91 (3.59)

F 1.22, 11.02 = 0.20

0.71 

 Posterolateral

WBV-S

69.49 (19.12)

79.51 (23.89)

81.40 (23.26)

F 2, 22 = 4.56

0.02 † ‡

WBV

69.54 (17.23)

86.29 (18.37)

85.77 (16.43)

F 1.42, 15.63 = 15.45

<  0.001 † ‡

CON

73.89 (14.87)

75.81 (20.69)

75.32 (17.70)

F 2., 18 = 0.10

0.9

Hop-test (cm)

 

WBV-S

47.49 (19.76)

69.44 (37.62)

74.75 (40.30)

F 1.25, 13.84 = 10.38

0.004 † ‡

 

WBV

48.62 (20.40)

53.19 (19.85)

57.70 (23.39)

F 2, 22 = 1.52

0.24

 

CON

53.49 (33.52)

56.98 (33.52)

60.82 (33.54)

F 2, 18 = 1.79

0.19 

  1. Note: Values are means and (Standard Deviation). Significant post hoc difference between: † pre- and post-intervention; ‡ pre-intervention and follow-up
  2. Abbreviations: WBV Whole body vibration group, WBV-S Whole body vibration with shoe with an unstable surface group, CON Control group