Unit:
Κατεύθυνση Προπονητική ΑθλημάτωνLibrary of the School of Physical Education and Sport Science
Supervisors info:
Kωνσταντίνος Νούτσος, Αναπληρωτής Καθηγητής, Σχολή Επιστήμης Φυσικής Αγωγής και Αθλητισμού, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών
Κωνσταντίνος Μπουντόλος, Καθηγητής, Σχολή Επιστήμης Φυσικής Αγωγής και Αθλητισμού, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών
Κωνσταντίνος Σωτηροπουλος, Επίκουρος Καθηγητής, Σχολή Επιστήμης Φυσικής Αγωγής και Αθλητισμού, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών
Original Title:
Ηλεκτρομυογραφική δραστηριότητα τρικέφαλου βραχιονίου μυός σε αθλητές πετοσφαίρισης και χειροσφαίρισης
Translated title:
Electromyographic activity of the tricep muscle in elite handball and volleyball athletes
Summary:
The recording and analysis of human muscle activity provides significant
information and knowledge for understanding the function of the body's
muscles. Electromyography is the experimental method for detecting and
recording the electrical activity of muscles during their activation. The purpose
of this study is to examine the electromyographic activity of the two heads (inner
and outer) of the triceps brachii muscle in elite volleyball and handball athletes
during the ball impact and ball release, corresponding to two fundamental
offensive actions in these sports - the serve and the free throw. Twelve (12)
volleyball players and ten (10) handball players participated in this study, along
with two control groups separate for each sport. The anthropometric
characteristics of the upper extremities and the electrical activity of the inner and
outer heads of the triceps brachii muscle were recorded. In electromyographic
activation, significant differences were found in the outer head of the triceps
brachii muscle between the volleyball group and its corresponding control group
in max (p=.005), mean (p=.001) and integral (p=.039) EMG parameters. The
handball group activated both the outer and inner heads of the triceps brachii
muscle for significantly shorter duration (dt, p=.001 and p=.001) (dt, p=.002 and
p=.006) in comparison to both control group and volleyball group respectively.
In conclusion, the shorter time and higher frequency EMG parameters observed
in the handball group may be attributed to the whip-like motion utilized by elite
athletes. This study showed that both heads of the triceps brachii muscle are
activated with dissimilar muscle synergy regarding the athletic groups, since different techniques are used in these sports. Further analysis is needed to
establish reliable EMG parameters in upper arm throwing and striking
movements in dynamic conditions, as well as examine performance, with
velocity, accuracy and decision making in perspective.
Main subject category:
Education - Sport science
Keywords:
Electromyography (emg), sports games, root mean square (rms)
