14岁以下精英和次精英足球运动员新敏捷性测试的有效性和可靠性
Validity and reliability of new agility test among elite and subelite under 14-soccer players.
作者信息
Hachana Younés, Chaabène Helmi, Ben Rajeb Ghada, Khlifa Riadh, Aouadi Ridha, Chamari Karim, Gabbett Tim J
机构信息
Research Unit: Analyse et Évaluation des Facteurs Affectant la Performance Sportive, Institut Supérieur du Sport et de l'Éducation Physique, Ksar Said, Tunisia. Université de la Manouba, Tunis, Tunisia.
Tunisian Research Laboratory "Sport Performance Optimization," National Centre of Medicine and Science in Sports (CNMSS), Tunis, Tunisia.
出版信息
PLoS One. 2014 Apr 21;9(4):e95773. doi: 10.1371/journal.pone.0095773. eCollection 2014.
BACKGROUND
Agility is a determinant component in soccer performance. This study aimed to evaluate the reliability and sensitivity of a "Modified Illinois change of direction test" (MICODT) in ninety-five U-14 soccer players.
METHODS
A total of 95 U-14 soccer players (mean ± SD: age: 13.61 ± 1.04 years; body mass: 30.52 ± 4.54 kg; height: 1.57 ± 0.1 m) from a professional and semi-professional soccer academy, participated to this study. Sixty of them took part in reliability analysis and thirty-two in sensitivity analysis.
RESULTS
The intraclass correlation coefficient (ICC) that aims to assess relative reliability of the MICODT was of 0.99, and its standard error of measurement (SEM) for absolute reliability was <5% (1.24%). The MICODT's capacity to detect change is "good", it's SEM (0.10 s) was ≤ SWC (0.33 s). The MICODT is significantly correlated to the Illinois change of direction speed test (ICODT) (r = 0.77; p<0.0001). The ICODT's MDC95 (0.64 s) was twice about the MICODT's MDC95 (0.28 s), indicating that MICODT presents better ability to detect true changes than ICODT. The MICODT provided good sensitivity since elite U-14 soccer players were better than non-elite one on MICODT (p = 0.005; dz = 1.01 [large]). This was supported by an area under the ROC curve of 0.77 (CI 95%, 0.59 to 0.89, p<0.0008). The difference observed in these two groups in ICODT was not statistically significant (p = 0.14; dz = 0.51 [small]), showing poor discriminant ability.
CONCLUSION
MICODT can be considered as more suitable protocol for assessing agility performance level than ICODT in U-14 soccer players.
背景
敏捷性是足球运动表现的一个决定性因素。本研究旨在评估“改良伊利诺伊变向测试”（MICODT）在95名14岁以下足球运动员中的可靠性和敏感性。
方法
来自一家职业和半职业足球学院的95名14岁以下足球运动员（平均±标准差：年龄：13.61±1.04岁；体重：30.52±4.54千克；身高：1.57±0.1米）参与了本研究。其中60人参与可靠性分析，32人参与敏感性分析。
结果
旨在评估MICODT相对可靠性的组内相关系数（ICC）为0.99，其绝对可靠性的测量标准误（SEM）<5%（1.24%）。MICODT检测变化的能力“良好”，其SEM（0.10秒）≤SWC（0.33秒）。MICODT与伊利诺伊变向速度测试（ICODT）显著相关（r = 0.77；p<0.0001）。ICODT的MDC95（0.64秒）约为MICODT的MDC95（0.28秒）的两倍，表明MICODT比ICODT具有更好的检测真实变化的能力。MICODT具有良好的敏感性，因为14岁以下精英足球运动员在MICODT上的表现优于非精英运动员（p = 0.005；dz = 1.01[大]）。这得到了ROC曲线下面积为0.77（95%CI，0.59至0.89，p<0.0008）的支持。在ICODT中观察到的这两组之间的差异无统计学意义（p = 0.14；dz = 0.51[小]），显示出较差的判别能力。
结论
在14岁以下足球运动员中，与ICODT相比，MICODT可被认为是评估敏捷性表现水平更合适的方案。
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