Yang Kyung-Hye, Park Du-Jin
Department of Physical Therapy, Graduate School, Catholic University of Pusan, Busan, Korea.
Department of Physical Therapy, College of Health Medicine, Kaya University, Gimhae, Korea.
J Exerc Rehabil. 2014 Aug 31;10(4):230-5. doi: 10.12965/jer.140113. eCollection 2014 Aug.
This study investigated the reliability of ultrasound in combination with surface electromyogram (EMG) for evaluating the activity of the abdominal muscles in individuals with and without low back pain during the abdominal drawing-in maneuver (ADIM). The study recruited ten individuals with or without low back pain, respectively. While the participants were performing the ADIM, the activities of the transversus abdominis (TrA) and the internal oblique (IO) were measured using ultra-sound, while the activities of the external oblique (EO) and the rectus abdominis (RA) were measured using surface EMG. Intra-class correlation coefficients (ICC) were used to verify the inter-rater reliability of ultrasound in combination with surface EMG at rest and during the ADIM, and Bland-Altman plots were used to verify intra-rater reliability. The inter-rater reliability for the two groups at rest and during the ADIM was excellent (ICC2,1 = 0.77-0.95). In the Bland-Altman plots, the mean differences and 95% limits of agreement in the abdominal muscles of the two groups at rest were -0.03∼0.03 mm (-0.66 to 0.60 mm) and -0.12∼ -0.05 (-0.58 to 0.48% MVIC), respectively. The mean differences and 95% limits of agreement in the abdominal muscles of the two groups during the ADIM were -0.04∼0.02 mm (-0.73 to 0.65 mm) and -0.19∼0.05% MVIC (-1.24 to 1.34% MVIC), respectively. The ultrasound in combination with surface EMG showed excellent inter-rater and intra-rater reliability at rest and during the ADIM.
本研究调查了超声联合表面肌电图（EMG）在评估有和没有下背痛的个体进行收腹动作（ADIM）时腹部肌肉活动的可靠性。该研究分别招募了10名有或没有下背痛的个体。当参与者进行ADIM时，使用超声测量腹横肌（TrA）和腹内斜肌（IO）的活动，而使用表面肌电图测量腹外斜肌（EO）和腹直肌（RA）的活动。组内相关系数（ICC）用于验证超声联合表面肌电图在静息状态和ADIM期间的评分者间可靠性，Bland-Altman图用于验证评分者内可靠性。两组在静息状态和ADIM期间的评分者间可靠性极佳（ICC2,1 = 0.77 - 0.95）。在Bland-Altman图中，两组腹部肌肉在静息状态下的平均差异和95%一致性界限分别为-0.03∼0.03毫米（-0.66至0.60毫米）和-0.12∼ -0.05（-0.58至0.48%MVIC）。两组腹部肌肉在ADIM期间的平均差异和95%一致性界限分别为-0.04∼0.02毫米（-0.73至0.65毫米）和-0.19∼0.05%MVIC（-1.24至1.34%MVIC）。超声联合表面肌电图在静息状态和ADIM期间显示出极佳的评分者间和评分者内可靠性。
