Muscle Activity Pattern Dysfunction During Sit to Stand and Stand to Sit in the Movement System Impairment Subgroups of Low Back Pain
Muscle Activity Pattern Dysfunction During Sit to Stand and Stand to Sit in the Movement System Impairment Subgroups of Low Back Pain
复制标题
DOI：
10.1016/j.apmr.2018.08.190
复制
发表时间：
2019-05-01
影响因子：
4.3
通讯作者：
Namnik, Neda
中科院分区：
文献类型：
--
作者：
Orakifar, Neda;Shaterzadeh-Yazdi, Mohammad Jafar;Namnik, Neda
目的：目的：研究运动系统损伤（MSI）模型中2个下腰痛（LBP）亚组中，涉及坐立（STD）和立坐立（STS）的某些肌肉活动模式的损伤。设计：病例对照研究。地点：一所大学医学中心。参与者：2个亚组中15名无慢性LBP的女性和22名慢性LBP的女性（N=37）（15名进入腰椎伸展旋转（LER）和7名进入腰椎屈曲旋转[LFR]）自愿参加了这项研究。测量双侧内斜肌（TO）、腰竖脊肌（ES）、内侧腘绳肌（MH）和外侧腘绳肌（LH）的表面肌电图（EMG）。主要结果测量：平均和最大振幅的变化、达到峰值振幅的时间、肌肉活动的持续时间以及这些变量的双侧不对称性。在STD期间，LER亚组的MH平均振幅双侧不对称（P = 0.031），LFR亚组的LH持续时间双侧不对称（P = 0.026）。此外，在这项任务中，发现LFR亚组的左MH激活达到峰值的时间比其他2组缩短（对照组; P = 0.028/LER; P = 0.004）。在STS期间，LFR亚组中观察到左侧ES最大振幅高于LER亚组（P = 0.029）。此外，减少时间峰值右ES（P = 0.035）和左LH（P = 0.038）激活LER亚组比对照组和减少时间峰值左LH激活LFR亚组比对照组（P = 0.041）在STS观察。结论：2 LBP亚组之间的差异可能是功能活动过程中的一些肌肉的活动模式受损的结果。(C)2018年美国康复医学大会
Objective: To investigate impairment in the activity pattern of some muscles involved in sit to stand (STD) and stand to sit (STS) among 2 low back pain (LBP) subgroups of the Movement System Impairment (MSI) model.Design: Case-control study.Setting: A university medical center.Participants: Fifteen women without chronic LBP and 22 women with chronic LBP (N=37) in 2 subgroups (15 into the lumbar extension rotation (LER) and 7 into lumbar flexion rotation [LFR]) voluntarily participated in this study.Interventions: Participants were asked to perform STD and STS at a preferred speed. Surface electromyography (EMG) were measured bilaterally from the internal oblique (TO), lumbar erector spine (ES), medial hamstring (MH), and lateral hamstring (LH) muscles.Main Outcome Measures: Changes in mean and maximum amplitude, time to peak amplitude, duration of muscle activity, and bilateral asymmetry of these variables.Results: During STD, bilateral asymmetry in mean amplitude of MH in the LER subgroup (P =.031) and bilateral asymmetry in duration of LH in the LFR subgroup (P =.026) were exhibited. Also, in this task reduced time to peak left MH activation were found in the LFR subgroup than 2 other groups (control; P =.028/LER; P =.004). During STS, increased left ES maximum amplitude were observed in the LFR subgroup than LER subgroup (P =.029). Also, reduced time to peak right ES (P =.035) and left LH (P =.038) activation in the LER subgroup than control subjects and reduced time to peak left LH activation in LFR subgroup than control subjects (P =.041) were observed during STS.Conclusions: The differences between the 2 LBP subgroups may be a result of impairment in the activity pattern of some muscles during functional activity. (C) 2018 by the American Congress of Rehabilitation Medicine