This study aimed to investigate rugby league coaches’ perceptions of physical qualities for current and future performance, while also establishing the training practices of under-16 and under-19 players. Twenty-four practitioners (rugby coach, strength and conditioning coach) working within nine Super League clubs completed a questionnaire. The questionnaire required practitioners to rank eleven physical qualities (i.e. strength, power, acceleration, maximum speed, aerobic endurance, change of direction, agility, height, body mass, lean mass and fat mass) by importance for current performance, future performance and career longevity according to playing position (forwards, backs, hookers and halves). Practitioners were asked to provide detail on the frequency and duration of each type of training session completed during a typical week throughout each phase of the season; pre-season, in-season (early), in-season (mid) and in-season (late). Typically, practitioners ranked strength, power and acceleration qualities highest, and endurance and anthropometric qualities lowest. The importance of physical qualities varied according to each playing level and position. Training practices of under-16 and under-19 players differed during each phase of the season, with under-19 players undertaking greater training volumes than under-16s players. Overall, the physical qualities coaches perceived as most important were not reflected within their training practices. Rugby league practitioners can use this information as a reference source to design long term athletic development plans, prescribe training and during player development procedures. Moreover, these data can inform and improve training practices while influencing the design of pre-season preparatory phases and in-season periods.

中文翻译：

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学院橄榄球联盟的训练实践及其与被认为对当前和未来表现很重要的身体素质的匹配

本研究旨在调查橄榄球联盟教练对当前和未来表现的身体素质的看法，同时还建立了 16 岁以下和 19 岁以下球员的训练实践。在九家中超俱乐部工作的 24 名从业者（橄榄球教练、体能教练）完成了一份问卷。问卷要求从业者根据对当前表现、未来表现和职业的重要性对 11 项身体素质（即力量、爆发力、加速度、最大速度、有氧耐力、方向改变、敏捷性、身高、体重、瘦体重和脂肪量）进行排名根据比赛位置（前锋、后卫、妓女和半场）的寿命。从业者被要求提供在整个赛季每个阶段典型一周内完成的每种类型训练的频率和持续时间的详细信息；季前、季中（早）、季中（中）和季中（晚）。通常，从业者将力量、爆发力和加速度质量排名最高，而耐力和人体测量质量排名最低。身体素质的重要性根据每个比赛水平和位置而有所不同。16 岁以下和 19 岁以下球员的训练习惯在赛季的每个阶段都不同，19 岁以下球员比 16 岁以下球员承担更多的训练量。总体而言，教练认为最重要的身体素质并未反映在他们的训练实践中。橄榄球联盟从业者可以使用此信息作为参考来源来设计长期的运动发展计划、规定训练和在球员发展过程中。此外，这些数据可以告知和改进训练实践，同时影响季前准备阶段和赛季中的设计。