Eechaute Christophe, Vaes Peter, Duquet William, Van Gheluwe Bart
Vrije Universiteit Brussel, Brussels, Belgium.
J Athl Train. 2007 Jan-Mar;42(1):60-5.
Sudden ankle inversion tests have been used to investigate whether the onset of peroneal muscle activity is delayed in patients with chronically unstable ankle joints. Before interpreting test results of latency times in patients with chronic ankle instability and healthy subjects, the reliability of these measures must be first demonstrated.
To investigate the test-retest reliability of variables measured during a sudden ankle inversion movement in standing subjects with healthy ankle joints.
Validation study.
Research laboratory.
15 subjects with healthy ankle joints (30 ankles).
INTERVENTION(S): Subjects stood on an ankle inversion platform with both feet tightly fixed to independently moveable trapdoors. An unexpected sudden ankle inversion of 50 degrees was imposed.
MAIN OUTCOME MEASURE(S): We measured latency and motor response times and electromechanical delay of the peroneus longus muscle, along with the time and angular position of the first and second decelerating moments, the mean and maximum inversion speed, and the total inversion time. Correlation coefficients and standard error of measurements were calculated.
Intraclass correlation coefficients ranged from 0.17 for the electromechanical delay of the peroneus longus muscle (standard error of measurement = 2.7 milliseconds) to 0.89 for the maximum inversion speed (standard error of measurement = 34.8 milliseconds).
The reliability of the latency and motor response times of the peroneus longus muscle, the time of the first and second decelerating moments, and the mean and maximum inversion speed was acceptable in subjects with healthy ankle joints and supports the investigation of the reliability of these measures in subjects with chronic ankle instability. The lower reliability of the electromechanical delay of the peroneus longus muscle and the angular positions of both decelerating moments calls the use of these variables into question.
突然的踝关节内翻试验已被用于研究慢性踝关节不稳定患者的腓骨肌活动起始是否延迟。在解释慢性踝关节不稳定患者和健康受试者的潜伏期测试结果之前，必须首先证明这些测量方法的可靠性。
研究健康踝关节站立受试者在突然踝关节内翻运动过程中所测变量的重测信度。
验证性研究。
研究实验室。
15名踝关节健康的受试者（30个踝关节）。
受试者站在踝关节内翻平台上，双脚紧紧固定在可独立移动的活板门上。施加50度的意外突然踝关节内翻。
我们测量了腓骨长肌的潜伏期、运动反应时间和机电延迟，以及第一和第二减速时刻的时间和角度位置、平均和最大内翻速度以及总内翻时间。计算了相关系数和测量标准误差。
组内相关系数范围从腓骨长肌机电延迟的0.17（测量标准误差 = 2.7毫秒）到最大内翻速度的0.89（测量标准误差 = 34.8毫秒）。
健康踝关节受试者中，腓骨长肌的潜伏期和运动反应时间、第一和第二减速时刻的时间以及平均和最大内翻速度的可靠性是可接受的，这支持了对慢性踝关节不稳定受试者中这些测量方法可靠性的研究。腓骨长肌机电延迟和两个减速时刻角度位置的较低可靠性使这些变量的使用受到质疑。
