英式橄榄球联盟30-15间歇体能测试表现的有效性及相关生理因素
The Validity and Contributing Physiological Factors to 30-15 Intermittent Fitness Test Performance in Rugby League.
作者信息
Scott Tannath J, Duthie Grant M, Delaney Jace A, Sanctuary Colin E, Ballard David A, Hickmans Jeremy A, Dascombe Ben J
机构信息
1Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Footscray, Victoria, Australia; 2Performance Sciences Department, Brisbane Broncos Rugby League Club, Red Hill, Queensland, Australia; 3Applied Sport Science and Exercise Testing Laboratory, Faculty of Science and Information Technology, University of Newcastle, Ourimbah, New South Wales, Australia; 4Queensland Reds Rugby Union, Herston, Queensland, Australia; and 5Department of Rehabilitation, Nutrition and Sport, School of Allied Health, LaTrobe University, Bundoora, Victoria, Australia.
出版信息
J Strength Cond Res. 2017 Sep;31(9):2409-2416. doi: 10.1519/JSC.0000000000001702.
Scott, TJ, Duthie, GM, Delaney, JA, Sanctuary, CE, Ballard, DA, Hickmans, JA, and Dascombe, BJ. The validity and contributing physiological factors to 30-15 intermittent fitness test performance in rugby league. J Strength Cond Res 31(9): 2409-2416, 2017-This study examined the validity of the 30-15 Intermittent Fitness Test (30-15IFT) within rugby league. Sixty-three Australian elite and junior-elite rugby league players (22.5 ± 4.5 years, 96.1 ± 9.5 kg, Σ7 skinfolds: 71.0 ± 18.7 mm) from a professional club participated in this study. Players were assessed for anthropometry (body mass, Σ7 skinfolds, lean mass index), prolonged high-intensity intermittent running (PHIR; measured by 30-15IFT), predicted aerobic capacity (MSFT) and power (AAS), speed (40 m sprint), repeated sprint, and change of direction (COD-505 agility test) ability before and after an 11-week preseason training period. Validity of the 30-15IFT was established using Pearson's coefficient correlations. Forward stepwise regression model identified the fewest variables that could predict individual final velocity (VIFT) and change within 30-15IFT performance. Significant correlations between VIFT and Σ7 skinfolds, repeated sprint decrement, V[Combining Dot Above]O2maxMSFT, and average aerobic speed were observed. A total of 71.8% of the adjusted variance in 30-15IFT performance was explained using a 4-step best fit model (V[Combining Dot Above]O2maxMSFT, 61.4%; average aerobic speed, 4.7%; maximal velocity, 4.1%; lean mass index, 1.6%). Across the training period, 25% of the variance was accounted by ΔV[Combining Dot Above]O2maxMSFT (R = 0.25). These relationships suggest that the 30-15IFT is a valid test of PHIR within rugby league. Poor correlations were observed with measures of acceleration, speed, and COD. These findings demonstrate that although the 30-15IFT is a valid measure of PHIR, it also simultaneously examines various physiological capacities that differ between sporting cohorts.
斯科特，TJ、达西，GM、德莱尼，JA、桑ctuary，CE、巴拉德，DA、希克曼斯，JA和达斯combe，BJ。橄榄球联盟中30-15间歇体能测试表现的有效性及相关生理因素。《力量与体能研究杂志》31(9): 2409-2416，2017年——本研究考察了30-15间歇体能测试（30-15IFT）在橄榄球联盟中的有效性。来自一家职业俱乐部的63名澳大利亚精英和青少年精英橄榄球联盟球员（22.5±4.5岁，96.1±9.5千克，7处皮褶厚度总和：71.0±18.7毫米）参与了本研究。在为期11周的季前训练期前后，对球员进行了人体测量（体重、7处皮褶厚度总和、瘦体重指数）、长时间高强度间歇跑（PHIR；通过30-15IFT测量）、预测有氧能力（MSFT）和功率（AAS）、速度（40米冲刺）、重复冲刺以及变向（COD-505敏捷性测试）能力评估。使用皮尔逊相关系数确定了30-15IFT的有效性。向前逐步回归模型确定了能够预测个体最终速度（VIFT）和30-15IFT表现变化的最少变量。观察到VIFT与7处皮褶厚度总和、重复冲刺减量、V̇O₂max/MSFT以及平均有氧速度之间存在显著相关性。使用四步最佳拟合模型（V̇O₂max/MSFT，61.4%；平均有氧速度，4.7%；最大速度，4.1%；瘦体重指数，1.6%）解释了30-15IFT表现中71.8%的调整方差。在整个训练期间，25%的方差由ΔV̇O₂max/MSFT解释（R = 0.25）。这些关系表明30-15IFT是橄榄球联盟中PHIR的有效测试。观察到与加速度、速度和COD测量值的相关性较差。这些发现表明，尽管30-15IFT是PHIR的有效测量方法，但它同时也考察了不同运动群体之间存在差异的各种生理能力。
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