比较无症状腰椎间盘退变患者和无腰椎间盘退变患者的核心肌肉的 MRI 横截面积和功能。

Comparison of MRI cross-sectional area and functions of core muscles among asymptomatic individuals with and without lumbar intervertebral disc degeneration.

机构信息

Department of Physical Therapy, Graduate School, Yonsei University, Wonju, Republic of Korea.

Department of Physical Therapy, College of Health Science, Laboratory of Kinetic Ergocise Based on Movement Analysis, Yonsei University, Wonju, Republic of Korea.

出版信息

BMC Musculoskelet Disord. 2019 Dec 1;20(1):576. doi: 10.1186/s12891-019-2960-y.

DOI:10.1186/s12891-019-2960-y

PMID:31787092

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6886205/

Abstract

BACKGROUND

Previous studies suggested that patients with symptomatic intervertebral disc degeneration (IDD) of lumbar spine have reduced cross-sectional area (CSA) and functions of core muscles. However, reduced CSA and functions of core muscles have been observed not only in patients with symptomatic IDD but also in patients with other subgroups of low back pain (LBP). Thus, it is uncertain whether reduced CSA and functions of core muscles lead to IDD and LBP, or pain leads to reduced CSA and functions of core muscles in patients with symptomatic IDD. Therefore, this study aimed to compare the CSA and functions of core muscles between asymptomatic participants with and without IDD in magnetic resonance imaging (MRI).

METHODS

Twenty asymptomatic participants (12 men and 8 women) participated in this study. Ten participants had asymptomatic IDD at L4-5. The others were healthy controls (without IDD at all levels of lumbar spine). The CSA of core muscles was measured using MRI. Maximal isometric trunk flexor strength and side bridge strength were measured by a Smart KEMA strength sensor. Trunk flexor endurance test, side bridge endurance test and plank endurance test were used to measure core endurance. Double legs loading test was used to measure core stability. Mann-Whitney U test was used to compare the differences between two groups.

RESULTS

There were no significant differences in core muscle functions between the two groups (p > 0.05). Moreover, there was no significant difference in CSA between the two groups (p > 0.05).

CONCLUSIONS

There was no significant difference in CSA and core muscle functions between asymptomatic participants with and without IDD. These findings indicate that a degenerative or bulging disc in asymptomatic individuals has little effect on CSA and functions of core muscles, especially in young age. Therefore, the general core endurance test or strength test could not differentiate asymptomatic people with and without IDD of lumbar spine.

TRIAL REGISTRATION NUMBER

Clinical Research information Service. KCT0004061. Registered 13 June 2019. retrospectively registered.

摘要

背景

先前的研究表明，患有症状性腰椎间盘退变（IDD）的患者，其核心肌肉的横截面积（CSA）和功能会降低。然而，不仅在患有症状性 IDD 的患者中，而且在患有其他亚组下腰痛（LBP）的患者中也观察到 CSA 减小和核心肌肉功能降低。因此，尚不确定 CSA 和核心肌肉功能降低是否导致 IDD 和 LBP，或者疼痛是否导致患有症状性 IDD 的患者 CSA 和核心肌肉功能降低。因此，本研究旨在比较 MRI 中无症状伴或不伴 IDD 的参与者之间的 CSA 和核心肌肉功能。

方法

本研究纳入了 20 名无症状参与者（男 12 名，女 8 名）。10 名参与者在 L4-5 处有无症状 IDD。其余参与者为健康对照组（所有腰椎节段均无 IDD）。使用 MRI 测量核心肌肉的 CSA。使用 Smart KEMA 力量传感器测量最大等长躯干屈肌力量和侧桥力量。使用躯干屈肌耐力测试、侧桥耐力测试和 Plank 耐力测试测量核心耐力。使用双腿负重测试测量核心稳定性。采用 Mann-Whitney U 检验比较两组间的差异。