Effects of whole body vibration on motor unit recruitment and threshold
RD Pollock, RC Woledge, FC Martin… - Journal of Applied …, 2011 - physiology.org
Whole body vibration (WBV) has been suggested to elicit reflex muscle contractions but this
has never been verified. We recorded from 32 single motor units (MU) in the vastus lateralis
of 7 healthy subjects (34±15.4 yr) during five 1-min bouts of WBV (30 Hz, 3 mm peak to
peak), and the vibration waveform was also recorded. Recruitment thresholds were
recorded from 38 MUs before and after WBV. The phase angle distribution of all MUs during
WBV was nonuniform (P< 0.001) and displayed a prominent peak phase angle of firing …
has never been verified. We recorded from 32 single motor units (MU) in the vastus lateralis
of 7 healthy subjects (34±15.4 yr) during five 1-min bouts of WBV (30 Hz, 3 mm peak to
peak), and the vibration waveform was also recorded. Recruitment thresholds were
recorded from 38 MUs before and after WBV. The phase angle distribution of all MUs during
WBV was nonuniform (P< 0.001) and displayed a prominent peak phase angle of firing …
