MacDonald David, Wan Alan, McPhee Megan, Tucker Kylie, Hug François
School of Health and Rehabilitation Sciences, University of Queensland, Brisbane, QLD, Australia.
School of Biomedical Sciences, University of Queensland, Brisbane, QLD, Australia.
Ultrasound Med Biol. 2016 Apr;42(4):1018-25. doi: 10.1016/j.ultrasmedbio.2015.12.002. Epub 2015 Dec 30.
The aim of this study was to assess the intra-session and inter-rater reliability of shear modulus measured in abdominal muscles during two commonly used trunk stability exercises. Thirty healthy volunteers performed a series of abdominal hollow and abdominal brace tasks. Supersonic shear imaging was used to measure the shear modulus (considered an index of muscle tension) of the four anterior trunk muscles: obliquus externus abdominis, obliquus internus abdominis, transversus abdominis and rectus abdominis. Because of measurement artifacts, internus abdominis and transversus abdominis data were not analyzed for 36.7% and 26.7% of the participants, respectively. These participants exhibited thicker superficial fat layers than the others. For the remaining participants, fair to excellent intra-session and inter-rater reliability was observed with moderate to high intra-class coefficients (0.45-0.97) and low to moderate standard error of measurement values (0.38-3.53 kPa). Reliability values were consistently greater for superficial than for deeper muscles.
本研究的目的是评估在两种常用的躯干稳定性练习中，测量腹部肌肉剪切模量时的组内和评分者间信度。30名健康志愿者进行了一系列收腹和腹部支撑任务。使用超声剪切成像测量四块前躯干肌肉的剪切模量（被视为肌肉张力指标）：腹外斜肌、腹内斜肌、腹横肌和腹直肌。由于测量伪像，分别有36.7%和26.7%的参与者的腹内斜肌和腹横肌数据未被分析。这些参与者的浅表脂肪层比其他人更厚。对于其余参与者，观察到组内和评分者间信度为“尚可”到“优秀”，组内相关系数为中度到高度（0.45 - 0.97），测量值的标准误为低度到中度（0.38 - 3.53 kPa）。浅表肌肉的信度值始终高于深层肌肉。
