Pérez-Contreras Jorge, Loro-Ferrer Juan Francisco, Merino-Muñoz Pablo, Hermosilla-Palma Felipe, Miranda-Lorca Brayan, Bustamante-Garrido Alejandro, Inostroza-Ríos Felipe, Brito Ciro José, Aedo-Muñoz Esteban
Escuela de Doctorado de La Universidad de Las Palmas de Gran Canaria (EDULPGC), 35016 Las Palmas, Spain.
Escuela de Ciencias del Deporte y Actividad Física, Facultad de Salud, Universidad Santo Tomas, Santiago 8370003, Chile.
J Funct Morphol Kinesiol. 2024 Dec 12;9(4):270. doi: 10.3390/jfmk9040270.
Assessing the reliability of measurement instruments and equipment is essential to ensure the accurate tracking of athletes over extended periods, minimizing the measurement errors caused by chance or other factors. However, a less common but equally important analysis is the verification of inter-measurement agreement, which complements the reliability results. To evaluate the intra- and inter-test reliability of an isometric hip adduction strength and asymmetries test in professional soccer players. : Twenty-three professional male soccer players were evaluated on two occasions, 1 week apart. The force signal was collected using force plates (Pasco PS-2141), and the data processing was performed using Matlab software (R2023a, MathWorks, Natick, MA, USA). The peak force, interval RFD, peak RFD, peak force asymmetry and RFD were analyzed. Intraclass correlation coefficients (ICCs) and coefficients of variation (CV) were calculated to corroborate the intra- and inter-test reliability. In addition, the degree of agreement of the asymmetries was corroborated through the kappa index. : The peak force demonstrated an acceptable absolute reliability (CV < 10%) for the intra-test and test-retest condition, an excellent relative intra-test reliability and a good to moderate reliability for the test-retest reliability. However, the peak force asymmetry showed a moderate test-retest reliability and agreement. For the intra-test condition, the RFD variables demonstrate a moderate to excellent relative reliability; however, all demonstrate unacceptable absolute reliability (CV > 10%) in at least one of the evaluation sessions. A moderate to poor test-retest reliability and unacceptable absolute reliability were observed for all the RFD variables. : The peak force is the variable with the highest intra- and inter-test reliability, so its use is recommended to longitudinally assess the maximum strength of the adductors in professional soccer players, but not the asymmetry orientation of the peak force. The RFD variables should be interpreted with caution due to their inconsistent reliability, and it is necessary to improve the methods used to achieve adequate reliability.
评估测量仪器和设备的可靠性对于确保长期准确跟踪运动员至关重要，可将偶然因素或其他因素导致的测量误差降至最低。然而，一种不太常见但同样重要的分析是测量间一致性的验证，它对可靠性结果起到补充作用。为了评估职业足球运动员等长髋内收力量和不对称性测试的测试内和测试间可靠性。：23名职业男性足球运动员在相隔1周的两个时间点接受评估。使用测力台（帕斯科PS - 2141）收集力信号，并使用Matlab软件（R2023a，MathWorks，美国马萨诸塞州纳蒂克）进行数据处理。分析了峰值力、区间RFD、峰值RFD、峰值力不对称性和RFD。计算组内相关系数（ICC）和变异系数（CV）以证实测试内和测试间的可靠性。此外，通过kappa指数证实不对称性的一致程度。：峰值力在测试内和重测条件下显示出可接受的绝对可靠性（CV < 10%），测试内相对可靠性极佳，重测可靠性良好至中等。然而，峰值力不对称性显示出中等的重测可靠性和一致性。在测试内条件下，RFD变量显示出中等至极佳的相对可靠性；然而，所有变量在至少一个评估 session 中都显示出不可接受的绝对可靠性（CV > 10%）。所有RFD变量均观察到中等至较差的重测可靠性和不可接受的绝对可靠性。：峰值力是测试内和测试间可靠性最高的变量，因此建议使用它来纵向评估职业足球运动员内收肌的最大力量，但不建议用于峰值力的不对称性方向评估。由于RFD变量的可靠性不一致，应谨慎解释，并且有必要改进所使用的方法以实现足够的可靠性。
