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https://www.readbyqxmd.com/read/28934633/association-of-low-back-pain-with-muscle-stiffness-and-muscle-mass-of-the-lumbar-back-muscles-and-sagittal-spinal-alignment-in-young-and-middle-aged-medical-workers
#1
Mitsuhiro Masaki, Tomoki Aoyama, Takashi Murakami, Ko Yanase, Xiang Ji, Hiroshige Tateuchi, Noriaki Ichihashi
BACKGROUND: Muscle stiffness of the lumbar back muscles in low back pain (LBP) patients has not been clearly elucidated because quantitative assessment of the stiffness of individual muscles was conventionally difficult. This study aimed to examine the association of LBP with muscle stiffness assessed using ultrasonic shear wave elastography (SWE) and muscle mass of the lumbar back muscle, and spinal alignment in young and middle-aged medical workers. METHODS: The study comprised 23 asymptomatic medical workers [control (CTR) group] and 9 medical workers with LBP (LBP group)...
September 14, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28931997/the-effects-of-ratio-in-the-multifidus-muscle-thickness-according-to-various-angle-of-mediolateral-ramp-during-double-stance
#2
Sang-Yeol Lee
[Purpose] This study was conducted to predict the risks of standing on mediolateral ramps by identifying the ratios of the multifidus muscles on the two sides of the spine when standing postures are maintained on mediolateral ramps of diverse angles. [Subjects and Methods] The study was conducted with 15 healthy adult males. All subjects participated voluntarily. Mediolateral ramps at five angles (0°, 5°, 10°, 15°, and 20°) were used. Ultrasonography was used to determine the thicknesses of the multifidus muscles under individual conditions...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28931982/applicability-of-ultrasonography-for-evaluating-trunk-muscles-size-in-athletes-a-study-focused-on-baseball-batters
#3
Michio Wachi, Tadashi Suga, Takatoshi Higuchi, Jun Misaki, Ryo Tsuchikane, Daichi Tanaka, Yuto Miyake, Nobuhiko Kanazawa, Tadao Isaka
[Purpose] Recently, we demonstrated that the thicknesses of trunk muscles measured using ultrasonography were correlated strongly with the cross-sectional areas measured using magnetic resonance imaging in untrained subjects. To further explore the applicability of ultrasonography in the clinical setting, the present study examined the correlation between ultrasonography-measured thicknesses and magnetic resonance imaging-measured cross-sectional areas of trunk muscles in athletes with trained trunk muscles...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28926802/patterns-of-trunk-muscle-activation-during-walking-and-pole-walking-using-statistical-non-parametric-mapping
#4
Luca Zoffoli, Massimiliano Ditroilo, Ario Federici, Francesco Lucertini
This study used surface electromyography (EMG) to investigate the regions and patterns of activity of the external oblique (EO), erector spinae longissimus (ES), multifidus (MU) and rectus abdominis (RA) muscles during walking (W) and pole walking (PW) performed at different speeds and grades. Eighteen healthy adults undertook W and PW on a motorized treadmill at 60% and 100% of their walk-to-run preferred transition speed at 0% and 7% treadmill grade. The Teager-Kaiser energy operator was employed to improve the muscle activity detection and statistical non-parametric mapping based on paired t-tests was used to highlight statistical differences in the EMG patterns corresponding to different trials...
September 9, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28922049/magnitudes-of-muscle-activation-of-spine-stabilizers-in-healthy-adults-during-prone-on-elbow-planking-exercises-with-and-without-a-fitness-ball
#5
James W Youdas, Kendra C Coleman, Erin E Holstad, Stephanie D Long, Nicole L Veldkamp, John H Hollman
Prone planking exercises have been used by rehabilitation professionals to activate torso muscles in healthy persons and those with low back pain. The aim of this study was to compare the magnitude of electromyographic (EMG) muscle activation from 10 right-sided muscles as demonstrated by the percentage of maximum voluntary isometric contraction (%MVIC) during four planking procedures. Surface EMG activity was acquired from the following muscles: (1) iliocostalis lumborum (IL), (2) longissimus thoracis (LT), (3) lumbar multifidus (LM), (4) rectus abdominis (RA), (5) external oblique (EO), (6) internal oblique (IO), (7) serratus anterior (SA), (8) latissimus dorsi (LD), (9) hamstrings (HS), and (10) gluteus maximus (GM)...
September 18, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28900567/the-comparison-of-the-lumbar-multifidus-muscles-function-between-gymnastic-athletes-with-sway-back-posture-and-normal-posture
#6
Elnaz Mahdavie, Asghar Rezasoltani, Leila Simorgh
BACKGROUND: The prevalence of sway back posture (SBP) is very high among elite gymnasts. This posture may be partly due to the improper function of lumbar multifidus muscles (LMM) as lumbar stabilizers muscles. PURPOSE: The aim of this study was to compare the thicknesses of LMM measured at rest and during the contraction elicited during an arm lift between elite gymnasts with SBP and normal posture. STUDY DESIGN: Observational, descriptive, comparative...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28889164/reliability-of-ultrasound-imaging-for-lumbar-multifidus-muscle-capturing-video-vs-static-images
#7
Fahed Mehyar, Theresa M Spitznagle, Neena K Sharma
OBJECTIVE: Ultrasound imaging is a widely used method for viewing musculoskeletal tissues. However, capturing movies of lumbar multifidus (LM) muscle with ultrasound imaging (video method) is a relatively new method, and its reliability has not been fully tested. The objective of this study was to compare the intra-rater reliability of two methods of ultrasound imaging of LM muscle, the traditional method (static images) and the video method, in healthy subjects conducted by a novice rater...
2017: Journal of Allied Health
https://www.readbyqxmd.com/read/28887274/the-qualitative-grading-of-muscle-fat-infiltration-in-whiplash-using-fat-water-magnetic-resonance-imaging
#8
Rebecca Abbott, Anneli Peolsson, Janne West, James M Elliott, Ulrika Åslund, Anette Karlsson, Olof Dahlqvist Leinhard
BACKGROUND CONTEXT: Development of muscle fat infiltration (MFI) in the neck muscles is associated with poor functional recovery following whiplash injury. Custom software and time-consuming manual segmentation of magnetic resonance (MR) images is required for quantitative analysis and presents as a barrier for clinical translation. PURPOSE: The purpose of this work was to establish a qualitative MR measure for MFI and evaluate its ability to differentiate between individuals with severe whiplash-associated disorder (WAD), mild/moderate WAD, and healthy controls...
September 5, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28883555/associations-between-trunk-muscle-morphology-strength-and-function-in-older-adults
#9
Behnaz Shahtahmassebi, Jeffrey J Hebert, Mark D Hecimovich, Timothy J Fairchild
Skeletal muscle plays an important role in performing activities of daily living. While the importance of limb musculature in performing these tasks is well established, less research has focused on the muscles of the trunk. The purpose of the current study therefore, was to examine the associations between functional ability and trunk musculature in sixty-four community living males and females aged 60 years and older. Univariate and multivariate analyses of the a priori hypotheses were performed and reported with correlation coefficients and unstandardized beta coefficients (β) respectively...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28882381/trunk-muscle-activation-pattern-in-parkinsonian-camptocormia-as-revealed-with-surface-electromyography
#10
Nils G Margraf, Marten Rogalski, Günther Deuschl, Johann P Kuhtz-Buschbeck
INTRODUCTION: Camptocormia is frequently seen in Parkinson's disease (PD) and multiple system atrophy. It is characterized by a pathological forward bending of the trunk during standing, often combined with a lateral trunk deviation. The etiology of camptocormia in PD is still unknown. Muscle MRI studies show abnormalities mainly of the erector spinae confirmed by muscle biopsies. Quantitative electromyographic examination of trunk muscle activity is missing. METHODS: Ventral (rectus and obliquus externus abdominis) and dorsal (iliocostalis lumborum, longissimus, multifidus) trunk muscles and the rectus femoris were recorded bilaterally with surface electromyography in standing PD patients with camptocormia (n = 10) and matched healthy controls (n = 10) who mimicked the patients' posture...
August 31, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28855789/effects-of-different-verbal-instructions-on-change-of-lumbar-multifidus-muscle-thickness-in-asymptomatic-adults-and-in-patients-with-low-back-pain
#11
Sharon Wang-Price, Jason Zafereo, Kelli Brizzolara, Lily Sokolowski, Dawn Turner
BACKGROUND: Spinal stabilisation exercise has been shown to be effective in the rehabilitation of low back pain (LBP). Due to the isometric nature of spinal stabilisation exercise, manual therapists use various verbal instructions to elicit lumbar multifidus muscle contraction. OBJECTIVES: The purpose of this study was to assess whether or not three verbal instructions would alter muscle thickness of the lumbar multifidus muscle differently in asymptomatic individuals and patients with LBP...
February 2017: Journal of Manual & Manipulative Therapy
https://www.readbyqxmd.com/read/28844918/risk-factors-of-postoperative-low-back-pain-for-low-grade-degenerative-spondylolisthesis-an-at-least-2-year-follow-up-retrospective-study
#12
Fulin Guan, Rui Bao, Lin Zhu, Guofa Guan, Zhiyong Chi, Jiaao Gu, Zhange Yu
PURPOSE: A retrospective study was conducted to clarify the risk factors of postoperative low back pain (LBP) for low grade degenerative spondylolisthesis. PATIENTS AND METHODS: A total of 239 patients who underwent posterior lumbar fusion between January 2011 and January 2015 were included in this analysis. We investigated patient characteristics, surgical characteristics and radiographic characteristics. RESULTS: The mean visual analogue scale (VAS) score of LBP decreased dramatically after the operation...
August 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28817410/fatty-infiltrate-of-the-lumbar-multifidus-muscles-predicts-return-to-play-in-young-athletes-with-extension-based-low-back-pain
#13
John Winslow, Andrew Getzin, Hilary Greenberger, Walter Silbert
OBJECTIVE: To evaluate the predictive value of fatty infiltrate of the lumbar multifidus muscles (LMM) for return to play in young athletes with extension-based low back pain (EB LBP). DESIGN: Retrospective cohort study. SETTING: Hospital-based sports medicine practice. PATIENTS: Sixty-two athletes, 61.3% female, and 38.7% male, mean age 14.8 years, with a primary complaint of EB LBP who underwent magnetic resonance imaging (MRI); 46...
August 16, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28801988/prompt-scanning-and-quantification-of-lumbar-muscles-seeing-the-butterly
#14
Eda Gürçay, Murat Kara, Bayram Kaymak, Abdullah Ruhi Soylu, Levent Özçakar
We have taken interest in the article by Hides and Stanton which has been published in your journal (Hides et al., 2017). First, we congratulate the authors for their effort in calling attention to the use of ultrasound (US) for scanning the multifidus and quadratus lumborum (QL) muscles. Errors in quantification might stem mainly from two reasons; failure to capture an appropriate image and failure to technically quantify it (Özçakar et al., 2011 and 2013). This article is protected by copyright. All rights reserved...
August 12, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28774686/does-stabilization-of-the-degenerative-lumbar-spine-itself-produce-multifidus-atrophy
#15
Young Eun Kim, Hae Won Choi
The effect of stabilization of the degenerative segment on changes in the pattern of paraspinal muscle activity was investigated using a previously developed musculoskeletal model. Muscle activity change depending on L4-L5 segment stabilization with and without taking into account the presence of multifidus atrophy according to direct invasion of the back muscle during surgery (MADIBM) was analysed in erect standing and 20° flexed postures. For the stabilization of the degenerative segment, a fusion or non-fusion stabilization with a pedicle-based dynamic stabilization system (PBDS) was applied...
July 31, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28756299/is-the-size-and-composition-of-the-paraspinal-muscles-associated-with-low-back-pain-a-systematic-review
#16
REVIEW
Tom A Ranger, Flavia M Cicuttini, Tue Secher Jensen, Waruna L Peiris, Sultana Monira Hussain, Jessica Fairley, Donna M Urquhart
Background Context Although previous studies have investigated the association between paraspinal muscle morphology and low back pain (LBP), the results are conflicting. Purpose This systematic review examined the relationship between size and composition of the paraspinal muscles and LBP. Study design/ setting: Systematic review Patient sample: N/A Outcome measures: N/A Methods A systematic search of electronic databases was conducted to identify studies investigating the association between the cross-sectional area and/or fatty infiltration of the paraspinal muscles (erector spinae, multifidus, psoas and quadratus lumborum) and LBP...
July 26, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28748488/association-between-paraspinal-muscle-morphology-clinical-symptoms-and-functional-status-in-patients-with-lumbar-spinal-stenosis
#17
Maryse Fortin, Àron Lazáry, Peter Paul Varga, Michele C Battié
PURPOSE: Lumbar spinal stenosis (LSS) is a disabling condition associated with narrowing of the spinal canal or vertebral foramina. Paraspinal muscle atrophy and fatty infiltration have been reported in patients with chronic LBP and disc herniation. However, very few imaging studies have examined paraspinal muscle morphology and composition in patients with LSS. The purpose of this study was to investigate the association of paraspinal muscle size, composition and asymmetry with functional status in patients with LSS...
July 26, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28746244/the-effect-of-unicycle-riding-course-on-trunk-strength-and-trunk-stability-functions-in-children
#18
Andrej Kocjan, Nejc Sarabon
PURPOSE: The aim of the study was to assess the effect of unicycling on trunk strength and timing of automatic stability actions of the selected trunk muscles (multifidus, obliquus externus, erector spine). METHODS: Twenty healthy 12-year-old children (12 boys, 8 girls; age 12.1 ± 0.2 yrs; body height 1.57 ± 0.05 m; body mass 52.8 ± 10.6 kg) were assigned to experimental and control group. Experimental group performed a supervised 12-session course of unicycling...
July 24, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28746131/assessment-of-the-cross-sectional-areas-of-the-psoas-major-and-multifidus-muscles-in-patients-with-adult-spinal-deformity-a-case-control-study
#19
Tomohiro Banno, Yu Yamato, Tomohiko Hasegawa, Sho Kobayashi, Daisuke Togawa, Shin Oe, Yuki Mihara, Kenta Kurosu, Naoto Yamamoto, Yukihiro Matsuyama
STUDY DESIGN: This is a case-control study. OBJECTIVE: The present study aimed to compare the cross-sectional areas of the psoas major and multifidus muscles between elderly patients with adult spinal deformity (ASD) and age-matched and body weight-matched controls, and to evaluate the associations between the cross-sectional areas of these muscles and the severity of spinal deformity. SUMMARY OF BACKGROUND DATA: The study included 49 female kyphosis patients with mild scoliosis (Cobb angle <20 degrees; mean age, 70...
August 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28739019/the-effect-of-2-different-exercise-programs-on-pain-intensity-and-muscle-dimensions-in-patients-with-chronic-low-back-pain-a-randomized-controlled-trial
#20
Narjess Nabavi, Mohammad A Mohseni Bandpei, Zahra Mosallanezhad, Mahdi Rahgozar, Shapour Jaberzadeh
OBJECTIVES: The purpose of this study was to compare the effect of 2 exercise programs combined with electrotherapy on pain intensity and lumbar stabilizer muscles dimensions in patients with nonspecific chronic low back pain. METHODS: A randomized controlled clinical trial was performed with 41 patients with chronic LBP. Participants were randomly allocated into 2 groups: an experimental group (n = 20) received stabilization exercises plus electrotherapy, and a control group (n = 21) received routine exercises plus electrotherapy...
July 21, 2017: Journal of Manipulative and Physiological Therapeutics
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