Postural stability,clicker reaction time and bow draw force predict performance in elite recurve archery

Recurve archery is an Olympic sport that requires extreme precision, upper body strength and endurance. The purpose of this research was to quantify how postural stability variables both pre- and post-arrow release, draw force, flight time, arrow length and clicker reaction time, collectively, impacted on the performance or scoring outcomes in elite recurve archery athletes. Thirty-nine elite-level recurve archers (23 male and 16 female; mean age?=?24.7?±?7.3 years) from four different countries volunteered to participate in this study prior to competing at a World Cup event. An AMTI force platform (1000Hz) was used to obtain centre of pressure (COP) measurements 1s prior to arrow release and 0.5s post-arrow release. High-speed footage (200Hz) allowed for calculation of arrow flight time and score. Results identified clicker reaction time, draw force and maximum sway speed as the variables that best predicted shot performance. Specifically, reduced clicker reaction time, greater bow draw force and reduced postural sway speed post-arrow release were predictors of higher scoring shots. It is suggested that future research should focus on investigating shoulder muscle tremors at full draw in relation to clicker reaction time, and the effect of upper body strength interventions (specifically targeting the musculature around the shoulder girdle) on performance in recurve archers.     

Identification of temporal factors related to shot performance for indoor recurve archery

The purpose of this study was to investigate the temporal phases of the archery shot cycle that distinguish the arrows distance from centre, in an attempt to understand critical factors that affect performance. Fifteen archers of varying ability each performed 30 shots at 18 m. Fourteen potential predictor variables were measured for statistical modelling by stepwise multiple linear regression. The results show that pre-shot time (pre-performance routine), follow-through time (post-performance routine), aiming time, speed of the arrow and the %variation in clicker-release time, account for 7.7% of the variation in predicting shot performance. The results have implications for practice demonstrating factors that coaches should focus on to develop their athletes. Further work on pre-, but more importantly, post-performance routines are needed generally within sport research as they are lacking and have been shown to be important contributing factors in a number of sports.     

Lightweight design optimization of a Bow Riser in Olympic Archery applying evolutionary computing

Recurve bows that are used in competitions like the Olympic Games are high-technology products. Good risers are lightweight but retain a high stiffness. The aim of this study was to design a riser with a stiffness comparable to that of the lightest riser currently used by the archers of the German National Archery Team, but with a considerably reduced weight. We computed the loads that are applied to a riser of a drawn recurve bow (the RADIAN model used by the German team) and created a 3-D solid CAD model of a riser with 24 variable parameters. We used evolutionary computing to optimize the 24 parameters of the model according to these criteria. We selected the most optimal riser out of the 1650 CAD models generated, manufactured it, and had it tested by three archers of the German National Archery Team. The mass of our manufactured riser is 871g, which is 243g or 22% less mass than the RADIAN riser.     

术道并进:中华射艺的价值审视与定位反思——兼评《学箭悟禅录》

中华射艺的当代传承面临概念纷争、文化缺失、定位局限等困境。为深入挖掘中华射艺的文化价值,明确未来发展定位,以德国哲学家奥根·赫里格尔关于日本弓道的著作《学箭悟禅录》为经验借鉴,在文化碰撞中以“它山之石”反思中华射艺的传承与发展。认为:射之术在中国哲学“身心一统”认识论的影响下具有内外兼修的特点,其“无艺之艺”的炼心价值追求将射引入“道”的精神层面。术与道的兼容并重使得中华射艺成为人悟道的生活实践。“术道并进”的发展定位将使人们在中华射艺中发现价值理性,从而为中华传统体育超越工具理性的认知提供一种精神向度。     

裕固族传统体育“草原三技”的历史渊源初探

传统上裕固族是一个游牧民族,在历史发展中形成了由射箭、赛马、摔跤组成的“草原三技”.本文从裕固族历史发展的追踪出发探寻了裕固族“草原三技”的渊源及演变发展,以求促进裕固族传统体育的研究与发展.     

先秦射箭运动的弓箭制作研究

先秦时期的射箭运动,在中国古代体育史上有着非常独特的地位。它是体育,它是文化,它还是社会管理的重要手段与措施。在此背景下,弓箭制作亦从国家的层面形成一整套的技术和管理规范,以不断满足社会需求,推动射箭运动的持续健康发展。     

对射箭训练效益与调控的认识

射箭项目的特.a-和训练规律,一直是我国射箭教练员长期关注的热点问题通过对墨西哥蒙特雷射箭队八年执教成功经验的总结和分析,从中探讨射箭训练的效益与调控,进一步认识射箭项目训练规律,大胆提出一些见解,促进射箭训练效果的提高.     

从中韩射箭运动比较探我国青少年射箭运动之发展

射箭项目是我国竞技体育潜优势项目,肩负着2012年伦敦奥运会夺取奖牌甚至金牌的重任。青少年是祖国的未来,青少年射箭运动员是射箭项目可持续发展的基础和保障。我国射箭青少年运动员在数量上是韩国射箭青少年运动员的三倍,但培养质量方面却远不如韩国。青少年射箭在全国的发展还受多方面因素的制约,如培养体系不健全、基础训练缺乏统一规划与管理、教练员综合执教能力不强等。针对存在的问题和薄弱环节,提出了几点建议。     

中国优秀射箭运动员紧张情绪的可视化特征研究

通过应用脑电图(EEG)与脑象图(EEQG)技术,对我国部分优秀射箭运动员进行多次、多状态的跟踪采集与分析。结果发现,运动员惊的动力学特征是脑波运动不断地向外周扩张、离散,重症者可无规则地游荡到视界之外,此归类为逃逸型,逃逸型多见于临场惊慌失措、神不守舍的运动员身上;运动员恐的动力学特征是脑波运动不断向中心退缩集结,有秩序地闭郁在一条狭窄的脑区内,此归类为缩结型,缩结型多见于临场心理压力过大和成就动机过强的运动员身上。研究认为,脑电图与脑象图的应用对优秀射箭运动员的选材具有重要价值。