London sport institute, faculty of science technology, Middlesex University, London, United Kingdom.
Saracens women rugby club, London, United Kingdom; and.
J Strength Cond Res. 2024 May 1;38(5):924-931. doi: 10.1519/JSC.0000000000004736. Epub 2024 Apr 11.
Yao, X, Austerberry, A, Bishop, C, Wilson, L, Chiang, C-Y, and Turner, A. Seasonal variation and positional differences in anthropometry, strength, and power characteristics in English premiership women's rugby union players. J Strength Cond Res 38(5): 924-931, 2024-Women's rugby is a collision sport that relies heavily on body composition and physical characteristics of strength and power to achieve competitive success. Furthermore, the seasonal nature presents a variety of physical challenges that can cause fluctuations in a player's physical development. Therefore, the purpose of this study was to determine the differences in anthropometry, strength, and power characteristics between forwards and backs in women's rugby union athletes in England and to identify changes throughout a season. Forty-seven players were recruited from the English premiership women's rugby during the 2020-2021 season. Players were split into forwards and backs and underwent body composition testing by dual-energy X-ray absorptiometry and strength and power tests (countermovement jump, drop jump [DJ], and isometric midthigh pull) on 3 separate occasions (preseason, midseason, postseason). Overall, forwards had significantly ( p < 0.01) higher body mass, fat mass, lean mass [LM], bone mineral content, and take off momentum, and backs had significantly higher ( p < 0.01, d > 0.5) jump height, reactive strength, and shorter DJ contact time. When observing seasonal changes, there were statistically significant differences ( p < 0.01) or moderate-to-large practical differences ( d > 0.5) in LM, reactive strength index modified, time to take-off, and DJ flight time [FT] among forwards when comparing 3 testing time frames. For backs, statistically significant differences ( p < 0.01) or moderate-to-large practical differences ( d > 0.5) were reported in LM and DJ FT throughout the season. In conclusion, the strength and power testing and characteristics shown in this study could support coaches and junior women's rugby athletes to have a basic understanding of English premiership physical standards.
姚，X，奥斯特伯里，A，毕晓普，C，威尔逊，L，蒋，C-Y，和特纳，A。英格兰女子英式橄榄球联盟球员的人体测量学、力量和功率特征的季节性变化和位置差异。J 力量与调理研究 38(5)：924-931，2024-女子橄榄球是一项依赖于身体成分和力量与功率的物理特性来取得竞技成功的碰撞运动。此外，季节性的特点带来了各种身体挑战，这可能导致球员的身体发育出现波动。因此，本研究的目的是确定英格兰女子英式橄榄球联盟运动员中前锋和后卫之间的人体测量学、力量和功率特征的差异，并确定整个赛季的变化。在 2020-2021 赛季，从英格兰女子职业橄榄球联赛中招募了 47 名球员。球员被分为前锋和后卫，并通过双能 X 射线吸收法进行身体成分测试，以及 3 次不同的力量和功率测试（反跳、跳深[DJ]和等长大腿中部拉力）。总的来说，前锋的体重、体脂、瘦体重[LM]、骨矿物质含量和离地冲量明显更高（p<0.01），而后卫的跳高等明显更高（p<0.01，d>0.5），反应力量和 DJ 接触时间更短。观察到季节变化时，当比较 3 个测试时间框架时，前锋的 LM、反应力量指数修正、离地时间和 DJ 飞行时间[FT]有统计学意义的差异（p<0.01）或中等至大的实际差异（d>0.5）。对于后卫，整个赛季 LM 和 DJ FT 都有统计学意义的差异（p<0.01）或中等至大的实际差异（d>0.5）。总之，本研究中的力量和功率测试和特征可以为教练和年轻女子橄榄球运动员提供对英格兰职业体育标准的基本了解。
