F-wave study at different stimulation rates
Fierro, B.; Raimondo, D.; Modica, A.
Electromyography and Clinical Neurophysiology 31(6): 357-360
1991
ISSN/ISBN: 0301-150X PMID: 1935759 Document Number: 374506
In 50 ulnar nerves of healthy subjects, F-wave latency, duration, amplitude and persistence were determined at different frequencies of the antidromic impulse (0.2-0.5-1-2 Hz). The F amplitude and persistence were found significantly increased at higher stimulation rates, suggesting that the frequency of the antidromic impulse influences the motoneuron pool discharges. Individual cross-correlation values (r) obtained for latency and duration, latency and amplitude, amplitude and duration did not show any significant changes at different stimulation rates.