Jimenez-Iglesias Jose, Gonzalo-Skok Oliver, Landi-Fernández Mario, Perez-Bey Alejandro, Castro-Piñero Jose
Galeno Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cadiz, 11519 Puerto Real, Spain.
Sport Science Department Cádiz C.F., Cádiz C.F., 11519 Cádiz, Spain.
Life (Basel). 2024 Nov 8;14(11):1448. doi: 10.3390/life14111448.
the purpose of this study was to analyze the reliability of a field-based fitness test battery in young trained football players, according to biological age.
197 young trained football players (12-19 years old) participated in the study. We measured anthropometric measurements (i.e., height, sitting height, length leg, and body mass), a bilateral vertical jumping test (CMJ), a progressive loading test of squats and hip thrust, acceleration and speed tests (10 m and 30 m sprint tests), a change-of-direction ability test (V-cut test), and a cardiorespiratory fitness test (30-15 intermittent fitness test). Statistical data are shown as the mean ± standard deviation by PHV group in tests and retests. Test reliability was assessed through the intraclass correlation coefficient (ICC), with an ICC above 0.9 being considered high. To evaluate accuracy and repeatability, standard error of measurement, coefficient of variation, and minimum detectable change at 90% were determined and Bland-Altman diagrams were used, establishing a statistical significance of < 0.05.
All of the tests showed non-significant differences between the test and retest in the pooled sample ( > 0.05). Furthermore, all of them presented a trivial effect size (<0.2) and high intraclass correlation coefficients (>0.9), which indicates the high reproducibility of the tests, despite some of them presenting a significant difference between trials (i.e., the CMJ, 10 m sprint, V-cut, and squat tests). Low measurement errors were found for all tests (coefficient of variation [CV] = 4.39-9.39), except for the CMJ and the progressive loading test for squat and hip thrust exercises (CV = 12.2-21.11). Similar results were found irrespective of biological age group.
All tests were reliable for the pooled sample as well as for the biological age groups.
本研究旨在根据生物年龄分析一套基于场地的体能测试组合在年轻的受过训练的足球运动员中的可靠性。
197名年轻的受过训练的足球运动员（12 - 19岁）参与了本研究。我们测量了人体测量指标（即身高、坐高、腿长和体重）、双侧垂直跳跃测试（CMJ）、深蹲和臀桥的渐进负荷测试、加速度和速度测试（10米和30米短跑测试）、变向能力测试（V字切入测试）以及心肺适能测试（30 - 15间歇适能测试）。统计数据以平均±标准差的形式呈现，按PHV组在测试和复测中给出。通过组内相关系数（ICC）评估测试可靠性，ICC高于0.9被认为可靠性高。为评估准确性和可重复性，确定了测量标准误差、变异系数以及90%的最小可检测变化，并使用布兰德 - 奥特曼图，设定统计学显著性为<0.05。
在合并样本中，所有测试的测试和复测之间均无显著差异（>0.05）。此外，所有测试的效应量均较小（<0.2）且组内相关系数较高（>0.9），这表明尽管其中一些测试在各次试验之间存在显著差异（即CMJ、10米短跑、V字切入和深蹲测试），但测试的可重复性很高。除CMJ以及深蹲和臀桥练习的渐进负荷测试外，所有测试的测量误差均较低（变异系数[CV]=4.39 - 9.39），CMJ以及深蹲和臀桥练习的渐进负荷测试的变异系数为12.2 - 21.11）。无论生物年龄组如何，均得到类似结果。
所有测试对于合并样本以及生物年龄组都是可靠的。
