Reaction time, movement time and EMG signals as indicators of anticipation processes in elite fencers
Journal Title: Antropomotoryka. Journal of Kinesiology and Exercise Sciences - Year 2010, Vol 20, Issue 51
Abstract
Anticipation is predicting an occurrence, using perceptions, experience and imagining of a situation and/or the aim of an action. Anticipation makes it possible to program appropriate movements in advance, or adjust them to a foreseen situation before any interferences. The study sample consisted of 12 advanced active epee fencers (average age 22.1 years). Their average training experience was 8.3 years. Two simple reaction tests were applied: temporal anticipation test and spatial anticipation test, preceded by a simple reaction control test. The tests were carried out with the aid of surface electromyography (EMG). In the control test the subjects’ mean reaction time (RT) amounted to 161 ms. Due to temporal anticipation the RT was reduced to 117 ms, and due to spatial anticipation to 120 ms. No significant effects of anticipation on movement time (MT) was observed. A significant change was noted, however, in the EMG signal, especially in terms of temporal anticipation. The results of the study showed that anticipation (time and spatial) exerts a significant impact on the reduction of time of sensorimotor responses, particularly in RT. Also in the temporal anticipation test a significant reduction of movement time (MT) (p < 0, 00) was noticed. The mean EMG signal values constituted a linear trend up to 235µV for the control test, and up to 917µV for the time anticipation test.
Authors and Affiliations
Zbigniew Borysiuk, Wacław Petryński, Wojciech Cynarski
Keywords
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