Effects of tackle height and shoulder preference on head and trunk acceleration in rugby

IF 1.5 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM
Yuta Ogata, Takashi Soejima, Kenji Hara, Hiromi Takahata, Yu Ando, Akihiro Yamashita, Mutsuo Yamada, Hidetaka Murakami, Akira Maeda
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Abstract

BackgroundMost rugby injuries occur during tackles, therefore investigating safe tackling techniques is essential.ObjectivesTo determine the effects of different tackle heights and shoulder preference on head and trunk acceleration.MethodsThirty-nine rugby players belonging to university leagues, adult leagues, and adult leagues, tackled a stationary tackle bag under three height conditions (high, middle, and low) with a dominant shoulder and a non-dominant shoulder. We calculated the peak head and trunk accelerations (PhA and PtA, respectively) during the tackles and evaluated the difference in accelerations by the tackle height and side.ResultsThe PhA (26.1 g (17.1) g) during the tackles was significantly higher than the PtA (11.7(7.2) g, p < 0.01). The PhA was significantly larger in the high (27.4 (19.4) g) and middle (27.7 (17.0) g) tackles compared to the low (23.4 (14.6) g) tackle (high vs low: p < 0.01; middle vs low: p < 0.01). The PhA was significantly lower during the dominant shoulder side (23.0 (13.7) g) tackles than during the non-dominant shoulder side (30.4 (21.3) g) tackles ( p < 0.01).ConclusionThe results suggest that coaching strategies and policies aimed at reducing tackler height and improving tackle technique on the non-dominant shoulder would help reduce head acceleration forces.
擒抱高度和肩部偏好对橄榄球运动中头部和躯干加速度的影响
背景大多数橄榄球伤害都发生在擒抱过程中,因此研究安全的擒抱技术至关重要。目的确定不同的擒抱高度和肩部偏好对头部和躯干加速度的影响。我们计算了擒抱过程中头部和躯干的峰值加速度(分别为 PhA 和 PtA),并评估了擒抱高度和擒抱侧加速度的差异。结果擒抱过程中的 PhA(26.1 g (17.1) g)明显高于 PtA(11.7(7.2) g,p < 0.01)。高位(27.4 (19.4) g)和中位(27.7 (17.0) g)擒抱时的 PhA 明显大于低位(23.4 (14.6) g)擒抱时的 PhA(高位 vs 低位:p < 0.01;中位 vs 低位:p < 0.01)。结果表明,旨在降低擒抱高度和改进非优势肩擒抱技术的教练策略和政策将有助于降低头部加速度力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
3.50
自引率
15.80%
发文量
208
期刊介绍: The International Journal of Sports Science & Coaching is a peer-reviewed, international, academic/professional journal, which aims to bridge the gap between coaching and sports science. The journal will integrate theory and practice in sports science, promote critical reflection of coaching practice, and evaluate commonly accepted beliefs about coaching effectiveness and performance enhancement. Open learning systems will be promoted in which: (a) sports science is made accessible to coaches, translating knowledge into working practice; and (b) the challenges faced by coaches are communicated to sports scientists. The vision of the journal is to support the development of a community in which: (i) sports scientists and coaches respect and learn from each other as they assist athletes to acquire skills by training safely and effectively, thereby enhancing their performance, maximizing their enjoyment of the sporting experience and facilitating character development; and (ii) scientific research is embraced in the quest to uncover, understand and develop the processes involved in sports coaching and elite performance.
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