腓肠肌内外侧硬度与跟腱硬度的相关性研究

关键词：跟腱  硬度  MyotonPRO  信度  相关性

Keywords:achilles tendon  stiffness  MyotonPRO  reliability  correlation

摘要：

      摘要 目的：使用新型软组织弹性触诊仪（MyotonPRO）对健康受试者的跟腱硬度进行信度研究，探究腓肠肌内侧、外侧硬度与跟腱硬度相关性。 方法：招募40例健康受试者，测试者A、B使用MyotonPRO对受试者跟腱硬度进行测量，测量点为根骨结节上方2cm（AT-2）和4cm（AT-4），测试者A单独对腓肠肌硬度进行测量。分别计算了测试者之间及同一测试者前后测试指标的组内相关系数（ICC）、最小检测变化值（MDC）及肌肉硬度与肌腱硬度之间的相关系数。 结果：测试者之间以及同一测试者前后所测指标信度良好（ICC=0.86—0.93）。踝关节中立位时，腓肠肌内、外侧与AT-4硬度的相关性分别为0.60和0.49（P＜0.05），腓肠肌内侧与AT-2硬度的相关性为0.36（P＜0.05），腓肠肌外侧与AT-4硬度无相关性（P＞0.05）。踝关节背屈10°位时，仅腓肠肌外侧与跟腱AT-4硬度存在相关性，相关系数为0.34（P＜0.05）。 结论：MyotonPRO测量跟腱硬度的可信度较高，腓肠肌内、外侧肌肉硬度与跟腱硬度的相关性具有一定差异，并且受踝关节角度变化的影响。

Abstract:

      Abstract Objective：To investigate the intra and inter-operator reliability of MyotonPRO for quantifying Achilles tendon (AT) stiffness and explore the correlations between the stiffness of the medial head of gastrocnemius (MG)， the stiffness of the lateral head of gastrocnemius (LG) and the stiffness of the Achilles tendon. Method：Forty healthy subjects (male，n=20，female，n=20) were recruited，and the stiffness of the AT (2 and 4 cm above the calcaneal tuberosity) were measured using a MyotonPRO device by rater A and B. Only rater A measured the stiffness of gastrocnemius. Intra-class correlation coefficients (ICCs)， minimum detectable change (MDC) and correlation coefficient were calculated in this study. Result：All reliability values for the measurement stiffness of the AT were higher than 0.85 (ICC=0.86—0.93). The correlations between the MG/LG and AT-4 stiffness were 0.60 and 0.49 in the ankle neutral position (P＜0.05). The correlation between the MG and AT-2 stiffness was 0.36 when in the ankle neutral position. And there was no correlation between the stiffness of LG and AT-4 stiffness (P＞0.05). Only the correlation between the LG and AT-4 stiffness was found when in the ankle dorsiflexied 10° and the value was 0.34(P＜0.05). Conclusion：MyotonPRO is a reliable device for accessing the stiffness of AT. The correlations between the stiffness of the MG， LG， and AT were different for the modulation of the ankle joint position and the region of AT.