EXPERIMENTAL
DETECTION OF THE AVERAGE MOTOR UNIT ACTION POTENTIAL FREQUENCY BY MEANS OF
SURFACE ELECTROMYOGRAMM
A. M.
Shayduk,
S. A.
Ostanin,
E. R.
Yusupov
Altai State
University,
Barnaul
Received September 9, 2011,
after correction - September 21, 2011
Abstract. We present here experimental records of surface
electromyogramms (sEMG) and their average power spectra. We demonstrate that the
detailed analysis of all sEMG power spectra reveals significant peaks at the
characteristic position. This position can be associated with the average
repetition rate of a single motor unit action potential. Also, we prove here
the possibility to measure the dependence of the myo-pulse repetition rate on
the muscle mechanical load.
Keywords: sEMG
pulse simulations, spectral analysis of electromyographical signals.