Ultrasound is frequently used to measure activity in the lumbar multifidus muscle (LMM). However previous reliability studies on diagnostic ultrasound and LMM have included a limited number of subjects and few have used Bland-Altman's Limits of Agreement (LOA). Further one does not know if activity affects the subjects' ability to contract the LMM. From January 2012 to December 2012 an inter- and intra-examiner reliability study was carried out in a clinical setting. It consisted of a total of four experiments with 30 subjects in each study. Two experienced examiners performed all measurements. Ultrasound measurements were made of: 1. the LMM in the resting state, 2. during a contracted state, 3. on subsequent days, and, before and after walking. Reliability and agreement was tested for 1. resting LMM, 2. contracted LMM, and 3. thickness change in the LMM. Mean values of three measurements were used for statistical analysis for each spinal level. The intra-class correlation coefficient (ICC) 3.1 and 3.2 was used to test for reliability, and Bland-Altman's LOA method to test for agreement. All of the studies indicate high levels of reliability, but as the LMM thickness increased (increasing contraction) the agreement between examiners was poorer than for low levels of contraction. The use of diagnostic ultrasound to measure the LMM seems to be reliable in subjects who have little or no change in thickness of the LMM with contraction.

Eirik Johan Skeie

Jan Arve Borge

Charlotte Leboeuf-Yde

Jenni Bolton

Niels Wedderkopp

Chiropractic & Manual Therapies

CHIROPRACTIC & MANUAL THERAPIES 发表关于临床上与脊医、手动治疗师和相关医疗保健专业人员相关的循证信息的所有方面的手稿。CHIROPRACTIC & MANUAL THERAPIES 是一本开放获取期刊，旨在为脊医、手动治疗师和相关医疗保健专业人员提供具有临床相关的循证信息。整脊疗法和其他手法疗法具有相对广泛的诊断实践和治疗范围，强调身体肌肉骨骼框架（尤其是脊柱）的结构和功能。整脊疗法和手法疗法的实践与包括手法在内的治疗密切相关，这是提供的服务范围还包括按摩、动员、物理疗法、干针疗法、生活方式和饮食咨询，以及各种其他相关的治疗和康复方法。脊椎按摩疗法和手动疗法继续作为关键资源这一领域，作为一种开放获取的出版物，更容易为全世界的从业者、研究人员和临床医生提供。

The journal "Chiropractic and Manual Therapies" publishes research manuscripts on all aspects of evidence-based information related to chiropractors, manual therapists, and other healthcare professionals. This open-access journal aims to provide clinically relevant evidence-based information for chiropractors, manual therapists, and related healthcare professionals. Chiropractic and other manual therapies encompass a wide range of diagnostic practices and treatment approaches, emphasizing the structure and function of the musculoskeletal framework of the body, particularly the spine. The practice of these therapies is closely related to various treatment modalities, including manual therapy, massage, mobilization, physical therapy, dry needling, lifestyle and dietary counseling, and various other related treatment and rehabilitation methods. Chiropractic and manual therapies continue to serve as key resources in this field, and as an open-access publication, it facilitates easier access to information for practitioners, researchers, and clinicians worldwide.

《Chiropractic and Manual Therapies》期刊发表与脊医、手动治疗师及相关医疗保健专业人员相关的循证信息的各个方面的研究论文。该期刊为开放获取，旨在为脊医、手动治疗师及相关医疗保健专业人员提供具有临床相关性的循证信息。整脊疗法和其他手法疗法涵盖了广泛的诊断和治疗实践，强调身体肌肉骨骼框架（尤其是脊柱）的结构与功能。这些实践与包括手法在内的多种治疗方法密切相关，服务范围还包括按摩、动员、物理疗法、干针疗法、生活方式和饮食咨询，以及其他相关的治疗和康复方法。脊椎按摩疗法和手动疗法在这一领域继续发挥着关键作用，作为一本开放获取的期刊，更容易为全球的从业者、研究人员和临床医生提供信息。

Chiropractic and Manual Therapies

Reliability of diagnostic ultrasound in measuring the multifidus muscle

The use of diagnostic ultrasound to measure the lumbar multifidus muscle seems to be reliable in subjects who have little or no change in thickness of the LMM with contraction, but as theLMM thickness increased (increasing contraction) the agreement between examiners was poorer than for low levels of contraction.

Category	Quartile
医学	4
医学, 康复医学	3

Reliability of diagnostic ultrasound in measuring the multifidus muscle

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