Kutlutürk Yıkılmaz Seval, Çevik Saldıran Tülay, Öztürk Özgül, Öktem Sedat
Department of Physiotherapy and Rehabilitation, Faculty of Hamidiye Health Sciences, University of Health Sciences, 34668 Istanbul, Turkey.
Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Bitlis Eren University, 13000 Bitlis, Turkey.
Diagnostics (Basel). 2024 Oct 16;14(20):2300. doi: 10.3390/diagnostics14202300.
This study aimed to examine intra- and inter-rater reliability of a myotonometer (MyotonPRO) in measuring upper and lower extremity mechanical properties in children with spinal muscular atrophy types I and II. Biceps brachii, triceps brachii, rectus femoris, and gastrocnemius muscle tone and stiffness in children ( = 21) were measured using the MyotonPRO device. Examiner 1 performed two sets of measurements in 60 min to determine intra-rater reliability. Examiner 2 performed measurements between Examiner 1's sets. Intra-interclass correlation coefficient, minimal detectable change, and standard error of measurement values were calculated to assess intra- and inter-rater reliabilities in this cross-sectional study. The results showed excellent intra- and inter-rater reliability analyses for frequency and stiffness values except for the stiffness value of the gastrocnemius muscle, which presented good reliability (ICC = 0.71). Minimal detectable change values ranged from 0.59 to 1.98 Hz for muscle tone and 16.08 to 124.74 N/m for stiffness (for both intra- and inter-rater reliabilities). Our findings indicate that MyotonPRO is a reliable tool for quantifying upper and lower extremity mechanical properties within one session in children with spinal muscular atrophy types I and II. Mechanical properties of the extremity muscle can be determined using this easily applied tool in future studies.
本研究旨在检验肌张力计（MyotonPRO）测量Ⅰ型和Ⅱ型脊髓性肌萎缩症患儿上下肢力学特性时的评分者内信度和评分者间信度。使用MyotonPRO设备测量了21名儿童肱二头肌、肱三头肌、股直肌和腓肠肌的肌张力和僵硬度。检查者1在60分钟内进行了两组测量，以确定评分者内信度。检查者2在检查者1的两组测量之间进行测量。在这项横断面研究中，计算了组内相关系数、最小可检测变化和测量值的标准误差，以评估评分者内信度和评分者间信度。结果显示，除腓肠肌僵硬度值的组内相关系数为0.71，呈现出良好的信度外，频率和僵硬度值的评分者内信度和评分者间信度分析结果均极佳。肌张力的最小可检测变化值范围为0.59至1.98Hz，僵硬度的最小可检测变化值范围为16.08至124.74N/m（评分者内信度和评分者间信度均如此）。我们的研究结果表明，MyotonPRO是一种可靠的工具，可在一次检查中量化Ⅰ型和Ⅱ型脊髓性肌萎缩症患儿的上下肢力学特性。在未来的研究中，可以使用这种易于应用的工具来确定肢体肌肉的力学特性。
