優秀射箭選手瞄射時間與箭著位置之探討

A Study of the Aiming Time and the Target Coordinates in Archery

林國斌(Kuo-Bin Lin)

《大專體育學刊》 7卷1期 (2005/03) Pp. 235-245

https://doi.org/10.5297/ser.200503_7(1).0018

摘要

在射箭的過程中，射箭選手除了必須準確的鎖定瞄準目標，又必須持續的伸展將箭拉過夾箭器後來放箭，但常會因力量的控制或伸展時間的不穩定，而影響到箭著的準確度。本研究為探討瞄射時間與箭著位置的相關性，是以國立體育學院四名射箭專長選手為受試對象（平均身高為174.5±5.07公分、體重為71±10.8公斤、年齡為21±0.82歲）,測試距離為30公尺，使用直徑80公分的環形靶，每位受試者共須射36箭，每回3箭共12回。本研究是利用二部JVC數位攝影機，分別置於受試者及箭靶前，來拍攝每位受試者的射箭過程和箭著的位置。以APAS(Ariel Performance Analysis System)動作分析系統換算出36箭的瞄射時間、箭著水平(X)、垂直(Y)位置及與中心點的距離(R)後，再作相關性的分析。結果發現：一、l及3號選手在射出低分箭時，其瞄射時間有明顯增長的趨勢。二、2及4號選手在射出低分箭時，其箭著位置有明顯偏左上的現象。三、l號選手瞄射時間與箭著垂直位置之相關性，呈負相關，相關係數為-0.55，這顯示該選手在瞄射時間增長時，會影響其射箭垂直方向的準確度。

關鍵字

瞄射時間 ； 射箭 ； 靶 ； 相關性

並列摘要

This paper examined the relationship between the aiming time and its target location in archery. The aiming time was defined as the period between drawing and the releasing instance, and the releasing instance was based on hearing the clicking sound generated from a clicker, which had the same string strength. Four male specialists from the archery team of the National College of Physical Education and Sports participated in this research, with their average height 174.5±5.07cm, average weight 71±10.8kg, and average age 21±0.82 years old. Twelve rounds and three arrows for each round were conducted in the range of 30-m distance, so each archer had thirty-six arrows. Two JVC digital video cameras were located around the archer and the target for capturing the archer's aiming procedure and the target coordination. The APAS (Ariel Performance Analysis System) motion analysis system was used to obtain the vertical and the horizontal target coordinates, and these data were thus used to analyze the correlation between the aiming and target locations. Results of this research from these four archers were as follows: 1. each of the first and third archers had the low score when his aiming time is longer than his average; 2. the second and fourth archers had the lower score caused by left-up deviation form the average target location; 3. for the first archer, especially, the correlation between the aiming time and the deviation of the vertical direction in the target coordinate was negative, i.e., -.55, which implies that the longer aiming time, the more downside in the vertical direction.

並列關鍵字

aiming time ； archery ； target ； correlation

參考文獻

Ping, Z.(1991).A discussion on the rhythm of movements in archery performance..Sports Science Beijing.11,66-69.

石慶賀(1991)。優秀選手射箭技術與穩定性之肌電圖分析。

林國斌(2003)。射箭選手瞄射軌跡與箭著位置之相關分析。中華民國大專校院九十二年體學術研討會專刊(上)。215-228。

金亨鐸(1990)。射箭基本教材(一)。4-18。

常月瑛(1993)。關於射箭運動快節奏打法與命中環值的初探。甘肅省體育科學研究季刊。4，31-32。