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Vincenzo Ricci and Levent Özçakar

the diagnosis and management of a relatively rare injury of the paraspinal muscles after back massage. Case Presentation Clinical Presentation A 30-year-old male, nonprofessional volleyball player, with no significant past medical history, applied to our clinic with persistent pain in the

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Marcin Grzes´kowiak, Zbigniew Krawiecki, Wojciech Łabe˛dz´, Jacek Kaczmarczyk, Jacek Lewandowski and Dawid Łochyn´ski

Flexion-relaxation phenomenon (FRP) is a physiological condition described as a silence in paraspinal muscle bioelectrical activity during full trunk flexion; that is, in normal subjects without chronic low back pain (CLBP), back muscles cease their electrical activity at a certain position during

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Annina B. Schmid, Linda Dyer, Thomas Böni, Ulrike Held and Florian Brunner

Context:

Various studies report decreased muscle activation in the concavity of the curve in patients with scoliosis. Such decreased muscle-performance capacity could lead to sustained postural deficits.

Objective:

To investigate whether specific asymmetrical sports therapy exercises rather than symmetrical back strengthening can increase EMG amplitudes of paraspinal muscles in the concavity of the curve.

Design:

Cross-sectional.

Setting:

Laboratory.

Participants:

16 patients with idiopathic scoliosis.

Interventions:

Patients performed 4 back-strengthening exercises (front press, lat pull-down, roman chair, bent-over barbell row) during 1 test session. Each exercise was performed in a symmetrical and asymmetrical variant and repeated 3 times.

Main Outcome Measure:

EMG amplitudes of the paraspinal muscles were recorded in the thoracic and lumbar apexes of the scoliotic curve during each exercise. Ratios of convex- to concave-side EMG activity were calculated.

Results:

Statistical analysis revealed that the asymmetrical variants of front press at the lumbar level (P = .002) and roman chair and bent-over barbell row at the thoracic level (P < .0001, .001 respectively) were superior in increasing EMG amplitudes in the concavity of the scoliotic curve.

Conclusions:

Specific asymmetrical exercises increase EMG amplitudes of paraspinal muscles in the concavity. If confirmed in longitudinal studies measuring improvements of postural deficits, these exercises may advance care of patients with scoliosis.

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Jayshree Shah, Tarushi Tanwar, Iram Iram, Mosab Aldabbas and Zubia Veqar

life until 60 years of age. 2 An altered pattern of the neuromuscular control system, leading to impairment in deep muscle activity, is thought to be one of the major factors contributing to the development of CLBP. 3 One of the characteristics of CLBP is atrophy of the paraspinal muscle, with

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Joseph S. Soltys and Sara E. Wilson

Regulating spinal motion requires proprioceptive feedback. While studies have investigated the sensing of static lumbar postures, few have investigated sensing lumbar movement speed. In this study, proprioceptive contributions to lateral trunk motion were examined during paraspinal muscle vibration. Seventeen healthy subjects performed lateral trunk flexion movements while lying prone with pelvis fixed. A 44.5-Hz vibratory stimulus was applied to the paraspinal muscles at the L3 level. Subjects attempted to match target paces of 9.5, 13.5, and 17.5 deg/s with and without paraspinal muscle vibration. Vibration of the paraspinal musculature was found to result in slower overall lateral flexion. This effect was found to have a greater influence in the difference of directional velocities with vibration applied to the left musculature. These changes reflect the sensitivity of lumbar velocity sense to applied vibration leading to the perception of faster muscle lengthening and ultimately resulting in slower movement velocities. This suggests that muscle spindle organs modulate the ability to sense velocity of motion and are important in the control of dynamic motion of the spine.

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, Pedaling Cadence, and Workload on Joint Kinetics and Kinematics During Cycling Rodrigo R. Bini * Aline C. Tamborindeguy * Carlos B. Mota * 8 2010 19 3 301 314 10.1123/jsr.19.3.301 Paraspinal Muscle Activity During Symmetrical and Asymmetrical Weight Training in Idiopathic Scoliosis Annina B. Schmid

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.1123/jsr.2017-0181 jsr.2017-0181 Short-Term Effects of Kinesio Taping® on Electromyographic Characteristics of Paraspinal Muscles, Pain, and Disability in Patients With Lumbar Disk Herniation Marcin Grzes´kowiak * Zbigniew Krawiecki * Wojciech Łabe˛dz´ * Jacek Kaczmarczyk * Jacek Lewandowski

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-0095 jsr.2019-0095 CASE STUDY Ultrasound Imaging of the Paraspinal Muscles for Interscapular Pain After Back Massage Vincenzo Ricci * Levent Özçakar * 18 10 2019 1 08 2020 29 6 830 832 10.1123/jsr.2018-0490 jsr.2018-0490 CRITICALLY APPRAISED TOPICS (AVAILABLE ONLINE ONLY) Do Older Adults With Reduced

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Esther Casas, Arturo Justes and Carlos Calvo

greater in V1stP (Table  1 ). External Abdominal Oblique and Lumbar Paraspinal Muscles A total of 10 subjects (mean = 42.20 y, SD = 6.06) fulfilled the exclusion criteria. Results show that the different positions had a significant effect on the activity of EAO and LP. EAO revealed higher values than LP

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Jeff A. Nessler, Thomas Hastings, Kevin Greer and Sean C. Newcomer

lumbar paraspinal muscles as a predictor of the risk of low-back pain . Eur Spine J. 2010 ; 19 ( 7 ): 1145 – 1152 . PubMed doi: 10.1007/s00586-010-1277-1 10.1007/s00586-010-1277-1 20127260 22. Cram JR , Kasman GS , Holtz J . Cram’s Introduction to Surface Electromyography . Sudbury, MA