Background

Physical performance tests provide a more complete picture of the functional status of the athlete's upper extremity.

Objectives

The primary purpose was to evaluate the reliability of the Modified Closed Kinetic Chain Upper Extremity Stability Test (MCKCUEST) in adolescent volleyball and basketball players. The secondary objective was to evaluate the relationship between the MCKCUEST and shoulder rotation isometric strength in this population.

Methods

Seventy-three healthy basketball (n = 39) and volleyball (n = 34) players participated to establish the reliability and correlations of the MCKCUEST. We used a two-session measurement design to evaluate the reliability of the MCKCUEST. Shoulder rotation isometric strength was performed to determine relationships with the MCKCUEST.

Results

The intraclass correlation coefficients (ICC_2,1) for intra-session reliability of the MCKCUEST ranged from 0.86 to 0.89, and the between days test–retest reliability (ICC_3,1) was 0.93. The standard error of measurement (1 touch) and the minimal detectable change (3 touches) showed clinically acceptable absolute reliability values. A weak correlation was found between the MCKCUEST power score and shoulder rotation isometric strength (r values between 0.3 and 0.4).

Conclusions

Results demonstrated good to excellent relative reliability and clinically acceptable absolute reliability values for the MCKCUEST on adolescent basketball and volleyball athletes. Performances on the MCKCUEST were weakly associated with shoulder rotation strength.

中文翻译：

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青少年篮球和排球运动员改良 CKCUEST 的可靠性及与肩部力量的相关性

背景

体能测试可以更全面地了解运动员上肢的功能状态。

目标

主要目的是评估改进的闭合动力链上肢稳定性测试 (MCKCUEST) 在青少年排球和篮球运动员中的可靠性。次要目标是评估该人群中 MCKCUEST 与肩部旋转等长力量之间的关系。

方法

73 名健康篮球 ( n  =  39) 和排球 ( n  =  34) 运动员参与建立 MCKCUEST 的可靠性和相关性。我们使用两阶段测量设计来评估 MCKCUEST 的可靠性。执行肩部旋转等长强度以确定与 MCKCUEST 的关系。

结果

MCKCUEST 会话内可靠性的组内相关系数 (ICC _2,1 ) 范围为 0.86 至 0.89，天间测试-再测试可靠性 (ICC _3,1 ) 为 0.93。测量标准误差（1 次接触）和最小可检测变化（3 次接触）显示出临床可接受的绝对可靠性值。在 MCKCUEST 力量评分和肩部旋转等长力量之间发现弱相关性（r值在 0.3 和 0.4 之间）。

结论

结果表明，MCKCUEST 对青少年篮球和排球运动员的相对可靠性和临床上可接受的绝对可靠性值良好至极好。MCKCUEST 的表现与肩部旋转强度弱相关。