Table 2. Mean differences between conditions and confidence intervals for the Root Mean Square (RMS) of VL muscle in the 30 Hz and 50 Hz groups.
Mean differences between conditionsConfidence interval (CI 95%)
30 Hz group 50 Hz group
No Vibration vsWBV with no Filter p No Vibration vsWBV with Filter p No Vibration vsWBV with no Filter p No Vibration vsWBV with Filter p
RMS (%MVIC) 10.73(3.92 to 17.53) .001 2.57(0.75 to 4.39) .002 10.53(4.68 to 16.39) .0001 3.55(1.2 to 5.89) .001
MVIC: Maximal Voluntary Isometric Contraction; Hz: Hertz; RMS: Root Mean Square; SD: Standard deviation; WBV: Whole-body vibration