patterns at professional sportsmen
Bieru Enescu Denisa, Vasilescu Maria Mirela, Rusu Ligia, Cosma Germina, Fortan Catalin
Faculty of Physical Exercise and Sport, University of Craiova, Craiova, Romania
The aim of our research was to evaluate the electromyography (EMG)
activity for all studied sport categories (handball, volleyball and
fence), to compare the results and to identify a specific
electromyography profile, very important for its contribution to a
correct selection of athletes and training programme application, so,
to emphasize the differences between tested sport disciplines.
and method. The studied lot was composed of 18 professional sportsmen,
six handball players, six volleyball sportsmen and six fencers active
in one of the studied sports, for at least 5 years, characterized by
homogeneity of average ages, heights, weights and training regime.
Surface EMG was measured to all athletes, at the same time with the
mechanogram, during maxim isometric contractions, performed by hand
fingers flexors muscles, till fatigue, obtained by squeezing a force
traductor with right and left hand, succesively. We recorded the
muscular biopotentials, using surface electrodes (BIOPAC) made from
silver, the measuring was made simultaneously on EMG BIOPAC MP 150 two
channles connected to a PC Pentium IV, were used three electrodes, two
active electrodes for each channel and a reference one placed on the
distal extremity of the forearm.
Results. The frequency parameters
showed superior values for voleyball players, the handball athletes
presented the highest values for most of the mechanogram parameters,
while fencers recorded the highest values for indexes like intercept,
slope, percent variation, regarding time and mixed parameters.
Electromyography profiles have a significant role for professional
sportsmen correct selection, for improving performances, thus, being a
coach guide, very useful to individualize the programmes training
according to each athletes feature, in order to obtain an efficient
training and great performances.
professional sportsmen, electromyography profile, handball, volleyball, fence