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muscle elastography

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https://www.readbyqxmd.com/read/29776820/mechanical-interaction-between-neighboring-muscles-in-human-upper-limb-evidence-for-epimuscular-myofascial-force-transmission-in-humans
#1
Yasuhide Yoshitake, Daiki Uchida, Kosuke Hirata, Dean L Mayfield, Hiroaki Kanehisa
To confirm the existence of epimuscular myofascial force transmission in humans, this study examined if manipulating joint angle to stretch the muscle can alter the shear modulus of a resting adjacent muscle, and whether there are regional differences in this response. The biceps brachii (BB: manipulated muscle) and the brachialis (BRA: resting adjacent muscle) were deemed suitable for this study because they are neighboring, yet have independent tendons that insert onto different bones. In order to manipulate the muscle length of BB only, the forearm was passively set at supination, neutral, and pronation positions...
June 6, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29745983/muscle-hardness-and-masticatory-myofascial-pain-assessment-and-clinical-relevance
#2
REVIEW
Yuri M Costa, Yoshiko Ariji, Dyna Mara A O Ferreira, Leonardo R Bonjardim, Paulo César R Conti, Eiichiro Ariji, Peter Svensson
BACKGROUND: The impression of increased muscle hardness in painful muscles is commonly reported in the clinical practice but may be difficult to assess. Therefore, the aim of this review is to present and discuss relevant aspects regarding the assessment of muscle hardness and its association with myofascial temporomandibular disorder (TMD) pain. METHODS: A non-systematic search for studies of muscle hardness assessment in patients with pain-related TMDs was carried out in PubMed, Cochrane Library, Embase and Google Scholar...
May 10, 2018: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29732595/noninvasive-measurement-of-sciatic-nerve-stiffness-in-patients-with-chronic-low-back-related-leg-pain-using-shear-wave-elastography
#3
Tiago Neto, Sandro R Freitas, Ricardo J Andrade, João R Vaz, Bruno Mendes, Telmo Firmino, Paula M Bruno, Antoine Nordez, Raúl Oliveira
OBJECTIVES: The purpose of this study was to determine whether sciatic nerve stiffness is altered in people with chronic low back-related leg pain by using shear wave elastography. METHODS: In this cross-sectional study, the sciatic nerve shear wave velocity (ie, an index of stiffness) was measured in both legs of 16 participants (8 with unilateral low back-related leg pain and 8 healthy controls). Sciatic stiffness was measured during a passive ankle dorsiflexion motion performed at 2°/s in an isokinetic dynamometer...
May 6, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29730683/effects-of-passive-muscle-stiffness-measured-by-shear-wave-elastography-muscle-thickness-and-body-mass-index-on-athletic-performance-in-adolescent-female-basketball-players
#4
Orkun Akkoc, Emine Caliskan, Zuhal Bayramoglu
AIMS: Athletic performance in basketball comprises the contributions of anaerobic and aerobic performance. The aim was to investigate the effects of passive muscle stiffness, using shear wave elastography (SWE), as well as muscle thickness, and body mass index (BMI), on both aerobic and anaerobic performances in adolescent female basketball players.Material and methods: Anaerobic and aerobic (VO2max) performance was assessed using the vertical jump and shuttle run tests, respectively, in 24 volunteer adolescent female basketball players...
May 2, 2018: Medical Ultrasonography
https://www.readbyqxmd.com/read/29723229/effects-of-an-acute-bout-of-dynamic-stretching-on-biomechanical-properties-of-the-gastrocnemius-muscle-determined-by-shear-wave-elastography
#5
George M Pamboris, Marika Noorkoiv, Vasilios Baltzopoulos, Hulya Gokalp, Robert Marzilger, Amir A Mohagheghi
AIMS: The aim of this study was to examine the acute effects of dynamic stretching (DS) exercise on passive ankle range of motion (RoM), resting localized muscle stiffness, as measured by shear wave speed (SWS) of medial gastrocnemius muscle, fascicle strain, and thickness. METHODS/RESULTS: Twenty-three participants performed a DS protocol. Before and after stretching, SWS was measured in the belly of the resting medial gastrocnemius muscle (MGM) using shear wave elastography...
2018: PloS One
https://www.readbyqxmd.com/read/29709524/evidence-of-generalized-muscle-stiffness-in-the-presence-of-latent-trigger-points-within-infraspinatus
#6
Patrick J Grabowski, Laura C Slane, Darryl G Thelen, Travis Obermire, Kenneth S Lee
OBJECTIVE: To evaluate stiffness of infraspinatus muscle tissue, both with and without latent trigger points, using ultrasound shear wave elastography. The primary hypothesis is that muscle with a latent trigger point will demonstrate a discrete region of increased shear wave speed. The secondary hypothesis is that shear wave speeds in the region with the trigger point will be higher in patients compared with controls, and will be similar between the two groups in the uninvolved regions...
April 27, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29709414/contractile-property-measurement-of-the-torn-supraspinatus-muscle-using-real-time-tissue-elastography
#7
Takuma Yuri, Nariyuki Mura, Issei Yuki, Hiromi Fujii, Yoshiro Kiyoshige
HYPOTHESIS: In the restoration of shoulder abduction, decreased contractility of the torn rotator cuff muscle may be a cause of a poor result. The aim of this study was to investigate the relationship between the contractile property of the torn supraspinatus muscle measured by real-time tissue elastography and the Goutallier stage as modified by Fuchs et al. METHODS: The muscular hardness of the torn supraspinatus muscle was measured in 32 patients at rest and during isometric contraction with the shoulder abducted to 60° in the scapular plane...
April 27, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29708284/supersonic-shear-imaging-elastography-in-skeletal-muscles-relationship-between-in-vivo-and-synthetic-fiber-angles-and-shear-modulus
#8
Kelly Lima, Remi Rouffaud, Wagner Pereira, Liliam F Oliveira
OBJECTIVES: To verify a relationship between the pennation angle of synthetic fibers and muscle fibers with the shear modulus (μ) generated by Supersonic shear imaging (SSI) elastography and to compare the anisotropy of synthetic and in vivo pennate muscle fibers in the x2 -x3 plane (probe perpendicular to water surface or skin). METHODS: First, the probe of Aixplorer ultrasound scanner (v.9, Supersonic Imagine, Aix-en-Provence, France) was placed in 2 positions (parallel [aligned] and transverse to the fibers) to test the anisotropy in the x2 -x3 plane...
April 30, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29706410/muscle-shear-wave-elastography-in-inclusion-body-myositis-feasibility-reliability-and-relationships-with-muscle-impairments
#9
Damien Bachasson, Guillaume J R Dubois, Yves Allenbach, Olivier Benveniste, Jean-Yves Hogrel
Degenerative muscle changes may be associated with changes in muscle mechanical properties. Shear wave elastography (SWE) allows direct quantification of muscle shear modulus (MSM). The aim of this study was to evaluate the feasibility and reliability of SWE in the severely disordered muscle as observed in inclusion body myositis. To explore the clinical relevance of SWE, potential relationships between MSM values and level muscle impairments (weakness and ultrasound-derived muscle thickness and echo intensity) were investigated...
April 26, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29698293/can-shoulder-muscle-activity-be-evaluated-with-ultrasound-shear-wave-elastography
#10
Kwanwoo Kim, Hyun-Jung Hwang, Seul-Gi Kim, Jin-Hyuck Lee, Woong Kyo Jeong
BACKGROUND: Quantitative assessment of rotator cuff muscle activity is important in the treatment of shoulder disorders. However, the known methods for assessing rotator cuff muscle activity thus far have been inaccurate, invasive, and inconvenient. QUESTIONS/PURPOSES: (1) Does the activity of the deltoid, supraspinatus, and infraspinatus muscles measured using ultrasound shear wave elastography have a linear correlation with muscle activity assessed using generally used methods, including isokinetic dynamometry and electromyography? (2) Does the activity of the deltoid, supraspinatus, and infraspinatus muscles measured using shear wave elastography show good intraobserver and interobserver reliability? METHODS: Twelve volunteers participated in intrasession reliability experiments...
April 24, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29685838/shear-wave-elastography-can-predict-passive-stiffness-of-supraspinatus-musculotendinous-unit-during-arthroscopic-rotator-cuff-repair-for-presurgical-planning
#11
Yoshiaki Itoigawa, Yuichiro Maruyama, Takayuki Kawasaki, Tomoki Wada, Keiichi Yoshida, Kai-Nan An, Kazuo Kaneko
PURPOSE: To determine the feasibility of shear wave elastography (SWE) with B-mode ultrasound in predicting the stiffness of the rotator cuff muscle before arthroscopic rotator cuff repair to evaluate the difficulty of the surgical procedure, as well as to compare SWE with the Goutallier stage on magnetic resonance imaging (MRI). METHODS: Thirty-eight patients with a full-thickness supraspinatus tear requiring arthroscopic rotator cuff repair participated. The Goutallier stage of fatty infiltration on MRI was measured before surgery, as was the SWE modulus of the anterior superficial, anterior deep, posterior superficial, and posterior deep (PD) regions of the supraspinatus muscle...
April 20, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29675978/measurement-of-large-strain-properties-in-calf-muscles-in-vivo-using-magnetic-resonance-elastography-and-spatial-modulation-of-magnetization
#12
Kristy Tan, Lauriane Jugé, Alice Hatt, Shaokoon Cheng, Lynne E Bilston
It is important to measure the large deformation properties of skeletal muscle in vivo in order to understand and model movement and the force-producing capabilities of muscle. As muscle properties are non-linear, an understanding of how the deformation state affects the measured shear moduli is also useful for clinical applications of magnetic resonance elastography (MRE) to muscle disorders. MRE has so far only been used to measure the linear viscoelastic (small strain) properties of muscles. This study aims to measure the shear moduli of human calf muscles under varying degrees of strain using MRE...
April 19, 2018: NMR in Biomedicine
https://www.readbyqxmd.com/read/29661643/muscle-ultrasound-elastography-and-mri-in-preschool-children-with-duchenne-muscular-dystrophy
#13
Anna Pichiecchio, Francesco Alessandrino, Chandra Bortolotto, Alessandra Cerica, Cristina Rosti, Maria Vittoria Raciti, Marta Rossi, Angela Berardinelli, Giovanni Baranello, Stefano Bastianello, Fabrizio Calliada
The aim of this study was to determine muscle tissue elasticity, measured with shear-wave elastography, in selected lower limb muscles of patients affected by Duchenne muscular dystrophy (DMD) and to correlate the values obtained with those recorded in healthy children and with muscle magnetic resonance imaging (MRI) data from the same DMD children, specifically the pattern on T1-weighted (w) and short-tau inversion recovery (STIR) sequences. Five preschool DMD children and five age-matched healthy children were studied with shear-wave elastography...
April 13, 2018: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/29629427/reference-values-for-shear-wave-elastography-of-neck-and-shoulder-muscles-in-healthy-individuals
#14
Caroline Ewertsen, Jonathan Carlsen, Mohammed Aftab Perveez, Henrik Schytz
Purpose: to establish reference values for ultrasound shear-wave elastography for pericranial muscles in healthy individuals (m. trapezius, m. splenius capitis, m. semispinalis capitis, m. sternocleidomastoideus and m. masseter). Also to evaluate day-to-day variations in the shear-wave speeds and evaluate the effect of the pennation of the muscle fibers, ie scanning parallel or perpendicularly to the fibers. Materials and Methods: 10 healthy individuals (5 males and 5 females) had their pericranial muscles examined with shear-wave elastography in two orthogonal planes on two different days for their dominant and non-dominant side...
January 2018: Ultrasound International Open
https://www.readbyqxmd.com/read/29602634/scapular-kinematic-alterations-during-arm-elevation-with-decrease-in-pectoralis-minor-stiffness-after-stretching-in-healthy-individuals
#15
Jun Umehara, Masatoshi Nakamura, Satoru Nishishita, Hiroki Tanaka, Ken Kusano, Noriaki Ichihashi
BACKGROUND: Pectoralis minor tightness may be seen in individuals with scapular dyskinesis, and stretching is used for the treatment of altered scapular motion in sports and clinical fields. However, few researchers have reported on the effects of pectoralis minor stiffness on scapular motion during arm elevation. This study investigated whether an acute decrease of pectoralis minor stiffness after stretching changes the scapular motion during arm elevation. METHODS: The study allocated 15 dominant and 15 nondominant upper limbs in healthy men as control and interventional limbs, respectively...
March 27, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29576951/change-in-skeletal-muscle-stiffness-after-running-competition-is-dependent-on-both-running-distance-and-recovery-time-a-pilot-study
#16
Seyedali Sadeghi, Cassidy Newman, Daniel H Cortes
Long-distance running competitions impose a large amount of mechanical loading and strain leading to muscle edema and delayed onset muscle soreness (DOMS). Damage to various muscle fibers, metabolic impairments and fatigue have been linked to explain how DOMS impairs muscle function. Disruptions of muscle fiber during DOMS exacerbated by exercise have been shown to change muscle mechanical properties. The objective of this study is to quantify changes in mechanical properties of different muscles in the thigh and lower leg as function of running distance and time after competition...
2018: PeerJ
https://www.readbyqxmd.com/read/29564047/what-is-the-most-effective-eccentric-stretching-position-in-lateral-elbow-tendinopathy
#17
Joong-Bae Seo, Sung-Hyun Yoon, Joon-Yeul Lee, Jun-Kyom Kim, Jae-Sung Yoo
Background: A variety of treatment options suggest that the optimal treatment strategy for lateral elbow tendinopathy (LET) is not known, and further research is needed to discover the most effective treatment for LET. The purpose of the present study was to verify the most effective position of eccentric stretching for the extensor carpi radialis brevis (ECRB) in vivo using ultrasonic shear wave elastography. Methods: A total of 20 healthy males participated in this study...
March 2018: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/29555756/muscle-tendon-length-and-force-affect-human-tibialis-anterior-central-aponeurosis-stiffness-in-vivo
#18
Brent James Raiteri, Andrew Graham Cresswell, Glen Anthony Lichtwark
The factors that drive variable aponeurosis behaviors in active versus passive muscle may alter the longitudinal stiffness of the aponeurosis during contraction, which may change the fascicle strains for a given muscle force. However, it remains unknown whether these factors can drive variable aponeurosis behaviors across different muscle-tendon unit (MTU) lengths and influence the subsequent fascicle strains during contraction. Here, we used ultrasound and elastography techniques to examine in vivo muscle fascicle behavior and central aponeurosis deformations of human tibialis anterior (TA) during force-matched voluntary isometric dorsiflexion contractions at three MTU lengths...
April 3, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29548864/a-novel-noninvasive-ultrasound-vibro-elastography-technique-for-assessing-patients-with-erectile-dysfunction-and-peyronie-disease
#19
Xiaoming Zhang, Boran Zhou, Andre F Miranda, Landon W Trost
OBJECTIVE: To translate a novel ultrasound vibro-elastography (UVE) technique for noninvasively measuring viscoelasticity of the penis. METHODS: A pilot study of UVE was performed in men with erectile dysfunction or Peyronie disease. Assessments were performed in triplicate on the lateral aspect of the penis (bilaterally) at 100, 150, and 200 Hz before and after erectogenic injection administration. Viscoelasticity of the corpora was also calculated and compared before and after injection and against measures of erectile function, including the International Index of Erectile Function-Erectile Function Domain, and the total erectogenic medication volume required for achieving a firm erection...
March 13, 2018: Urology
https://www.readbyqxmd.com/read/29481455/tracking-of-time-dependent-changes-in-muscle-hardness-after-a-full-marathon
#20
Takayuki Inami, Kento Nakagawa, Takahisa Yonezu, Mako Fukano, Ayako Higashihara, Satoshi Iizuka, Taira Abe, Takaya Narita
We sought to identify changes in individual muscle hardness after a full marathon and to track time-dependent changes using ultrasound strain elastography (SE). Twenty-one collegiate marathon runners were recruited. Muscle hardness (i.e., strain ratio, SR) was measured using SE for the rectus femoris (RF), vastus lateralis (VL), biceps femoris long head (BF), tibialis anterior (TA), gastrocnemius medial head (GM), and soleus (SOL) muscles at the following time points: pre (PRE), immediately post (POST), day-1 (D1), day-3 (D3), and day-8 (D8), after a full marathon...
February 22, 2018: Journal of Strength and Conditioning Research
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