Table 4.  The effects of 12-week whole body vibration training on muscle strength and endurance. All values were presented as mean (± SD).
   
 
 
 
 
 
 

ANOVA

 
 

VT

CON

unpaired-t test
(baseline)

Group

Time

Group-by-
Time

   

n = 10

n = 8

df

t

p

F

p

F

p

F

p

Maximal isometric lumbar extension strength (SI/kg)

pre

149.6 (54.6)

135.0 (45.3)

1,16

-.61

.55

.13

.72

18.29

.001

.79

.39

post

169.8 (68.7)

165.8 (46.3)

Maximal isokinetic knee extension-con- (Nm/kg)

pre

1.92 (.48)

1.53 (.80)

1,16

1.28

.22

1.95

.18

2.53

.13

.15

.70

post

2.13 (.50)

1.66 (.96)

Maximal isokinetic knee extension-ecc- (Nm/kg)

pre

2.34 (.79)

2.05 (.86)

1,16

.75

.46

.82

.38

2.65

.12

.37

.55

post

2.59 (.85)

2.17 (1.00)

Maximal isokinetic knee flexion - con- (Nm/kg)

pre

1.00 (.25)

.78 (.38)

1,16

1.54

.14

2.49

.13

16.85

.001

.04

.84

post

1.22 (.31)

.97 (.40)

Maximal isokinetic knee flexion- ecc- (Nm/kg)

pre

1.29 (.22)

1.02 (.34)

1,16

2.02

.06

4.61

.05

3.56

.08

.09

.77

post

1.43 (.31)

1.12 (.38)

Number of sit-ups (time)

pre

18.1 (4.5)

17.6 (4.3)

1,16

-.23

.82

.18

.67

39.56

.001

1.80

.20

 

post

20.8 (5.2)

19.4 (4.7)

CON, control group; VT, Vibration training group; con: concentric contraction; ecc: eccentric contraction; SI: strength index.