The ability of perceiving the distances precisely is essential in combat sport, and fencing is no exception. For successful scoring to occur, to escape from the opponents’ attack (lunge) is equally important as to attack aggressively. According to Newell (1986), complex forms of motor behavior can be viewed as products of self-organization arising from interactions between task, environment, and organism constraints. Based on the tri-angular constraint model of Newell’s (1986), the purpose of the study was to investigate how fencers respond to opponents of different heights and different approaching velocities. Three opponents of different heights approaching in 3 different velocities (freq. controlled by metronome in 120, 150, 180 bpm) to 8 participating fencers for them to perceive the distance of the opponent’s lunge. All the trials were captured by a camera (30Hz) and analyzed with the 3-D motion digitizing system. The results showed that all the perceived distances were overestimated, and significant differences were found in different height, F (2, 28) =12.44, p<.05, and velocity conditions, F (2, 28) = 41.99, p<.05. Height f (2, 28) = 74.67, p<.05 and velocity F (2, 28) = 28.76, p<.05 also had significant effect in normalized absolute errors, and there was a significant interaction between height and velocity, F (4, 28) = 8.98, p<.05. These results revealed that fencers’ depth perception would be influenced by the heights of the opponent and the approaching velocities of the opponent. Furthermore, there was a significant correlation between the approaching velocity of the opponents and the absolute errors of the perceived distance, r =.68, p<.05. The results of the study can apply to the training program of fencing, and future study should further look into the interactive situation of the fencers’ behavior.
Perceiving the distances of opponent’s lunge in fencing
CHEN, Yin Hua;
2008-01-01
Abstract
The ability of perceiving the distances precisely is essential in combat sport, and fencing is no exception. For successful scoring to occur, to escape from the opponents’ attack (lunge) is equally important as to attack aggressively. According to Newell (1986), complex forms of motor behavior can be viewed as products of self-organization arising from interactions between task, environment, and organism constraints. Based on the tri-angular constraint model of Newell’s (1986), the purpose of the study was to investigate how fencers respond to opponents of different heights and different approaching velocities. Three opponents of different heights approaching in 3 different velocities (freq. controlled by metronome in 120, 150, 180 bpm) to 8 participating fencers for them to perceive the distance of the opponent’s lunge. All the trials were captured by a camera (30Hz) and analyzed with the 3-D motion digitizing system. The results showed that all the perceived distances were overestimated, and significant differences were found in different height, F (2, 28) =12.44, p<.05, and velocity conditions, F (2, 28) = 41.99, p<.05. Height f (2, 28) = 74.67, p<.05 and velocity F (2, 28) = 28.76, p<.05 also had significant effect in normalized absolute errors, and there was a significant interaction between height and velocity, F (4, 28) = 8.98, p<.05. These results revealed that fencers’ depth perception would be influenced by the heights of the opponent and the approaching velocities of the opponent. Furthermore, there was a significant correlation between the approaching velocity of the opponents and the absolute errors of the perceived distance, r =.68, p<.05. The results of the study can apply to the training program of fencing, and future study should further look into the interactive situation of the fencers’ behavior.
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