Kerins Caitlyn M, Moore Stephanie D, Butterfield Timothy A, McKeon Patrick O, Uhl Timothy L
University of Kentucky, Lexington, KY, USA.
Int J Sports Phys Ther. 2013 Jun;8(3):248-55.
BACKGROUND/PURPOSE: The Myotonometer® is an electronic tissue compliance meter that has been used to quantify the compliance of soft tissues. The Myotonometer® may be a valuable tool to measure the effectiveness of interventions commonly used to increase tissue compliance in individuals with posterior shoulder tightness (PST). Limited data exist on reliability and responsiveness of the Myotonometer® for assessment of soft tissues about the shoulder; therefore, the purpose of this study is to determine the intra- and inter-session reliability and responsiveness of the Myotonometer® in measuring tissue compliance of the posterior shoulder musculature in asymptomatic subjects with PST.
Fifteen asymptomatic subjects with unilateral shoulder range of motion deficits attended two measurement sessions to assess the compliance of the tissues overlying the posterior deltoid, infraspinatus, and teres musculature. Analyses of reliability and responsiveness were conducted using intra-class correlation coefficients (ICCs) and the determination of minimal detectible change (MDC).
Intra-session ICC values ranged from 0.69 to 0.91 for all muscles with MDC never exceeding 1.0 mm. Inter-session ICC values were best for the posterior deltoid, which averaged 0.82, compared to the infraspinatus and the teres complex, which averaged 0.42 and 0.5 respectively. Inter-session MDC ranged from 0.55 to 1.20 mm across all muscles.
Clinicians can reliably detect relatively small changes in tissue compliance within a single treatment session utilizing the Myotonometer®. The Myotonometer® can reliably detect changes between sessions for tissues overlying the posterior deltoid; however, observed change in the infraspinatus and teres musculature must be above 1 mm to achieve meaningful change and account for decreased inter-session reliability.
背景/目的：肌张力计是一种电子组织顺应性测量仪，已被用于量化软组织的顺应性。肌张力计可能是一种有价值的工具，可用于测量常用于增加后肩部紧绷（PST）个体组织顺应性的干预措施的效果。关于肌张力计评估肩部周围软组织的可靠性和反应性的数据有限；因此，本研究的目的是确定肌张力计在测量无症状PST受试者后肩部肌肉组织顺应性时的组内和组间可靠性及反应性。
15名单侧肩部活动范围受限的无症状受试者参加了两次测量，以评估三角肌后部、冈下肌和小圆肌上方组织的顺应性。使用组内相关系数（ICC）和最小可检测变化（MDC）的测定进行可靠性和反应性分析。
所有肌肉的组内ICC值范围为0.69至0.91，MDC从未超过1.0毫米。组间ICC值在三角肌后部最佳，平均为0.82，而冈下肌和小圆肌复合体的平均ICC值分别为0.42和0.5。所有肌肉的组间MDC范围为0.55至1.20毫米。
临床医生可以使用肌张力计在单个治疗疗程中可靠地检测到组织顺应性的相对小变化。肌张力计可以可靠地检测三角肌后部上方组织在疗程之间的变化；然而，冈下肌和小圆肌的观察到的变化必须超过1毫米才能实现有意义的变化，并考虑到组间可靠性的降低。
3级。
