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the arrow velocity constant during consecutive shots and responding
to "clicker's fall" are considered to be an important feature
of archery performance. A specially designed device called an archery
chronometer was developed to measure the reaction time of an archer
to clicker's fall, arrow velocity, and external factors that may affect
arrow velocity. The purposes of this study were to test (1) the validity
of Clicker Reaction Time (CRT) measurer, and (2) the reliability of
CRT in accordance with the Flying Time (FT)/Average Speed (AS), temperature
(TEMP), wind speed (WS) and wind direction (WD) measurements. 20 elite
archers participated in this study. The Reaction Time (RT), which
was derived from EMG values and CRT from the archery chronometer were
correlated to test the validity of the CRT measurer. The test re-test
method was applied to test the reliability of archery chronometer.
CRT scores were related with RT scores (r = .787, p < 0.01). The
archery chronometer was valid in terms of predicting reaction time.
The device was found to be reliable in measuring CRT, AS, FT, WS,
WD, and TEMP. It was concluded that archery chronometer could be used
for technical evaluation and enhancing ones shooting technique in
archery.
KEY
WORDS: Archery, electromyography (EMG), reaction time, muscular
analysis.
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