Table 4. EThe results of the maximal isometric lumbar extension strength test. All values are presented as the median (range).
RT-WBV RT Welch’s t-test
p-value
0 deg Pre   1.91 (.86-5.33)   1.99 (.56-3.97)
(Nm/kg) Post   2.54 (.78-5.01)   2.11 (.49-4.69)
Percent change   1.60 (.74-2.85)   1.37 (.72-5.17) .51
12 deg Pre   1.60 (1.06-4.86)   1.47 (.66-3.20)
(Nm/kg) Post   2.51 (1.05-6.15)   2.12 (.64-3.98)
Percent change   1.66 (.77-2.89)   1.3 (.67-2.13) .36
24 deg Pre   2.48 (1.48-6.72)   1.81 (1.01-3.77)
(Nm/kg) Post   2.87 (1.91-7.31)   2.45 (1.33-4.51)
Percent change   1.19 (.93-1.83)   1.31 (0.89-2.45) .48
36 deg Pre   2.82 (1.68-6.86)   2.45 (1.39-4.13)
(Nm/kg) Post   3.44 (2.67-7.68)   2.92 (1.50-4.88)
Percent change   1.26 (.79-1.86)   1.17 (.99-2.01) .60
48 deg Pre   3.13 (2.14-7.55)   2.76 (1.58-5.37)
(Nm/kg) Post   3.85 (2.57-7.97)   3.19 (1.78-5.65)
Percent change   1.18 (.80-2.08)   1.2 (.83-1.73) .54
60 deg Pre   3.12 (1.80-7.76)   3.19 (1.72-5.59)
(Nm/kg) Post   4.27 (3.01-8.46)   3.56 (2.19-5.69)
Percent change   1.26 (.91-1.91)   1.14 (.91-1.56) .02
72 deg Pre   3.74 (2.48-8.14)   3.43 (2.40-6.30)
(Nm/kg) Post   4.53 (3.46-8.81)   4.12 (2.80-6.60)
Percent change   1.21 (.87-1.58)   1.14 (.95-1.40) .39
RT-WBV, resistance training with whole-body vibration; RT, resistance training.