40,197 results match your criteria measure muscle

Extensor Digitorum Brevis Bulk and Associations with Fibular Motor Nerve Conduction Amplitude.

PM R 2021 Apr 19. Epub 2021 Apr 19.

Department of Physical Medicine and Rehabilitation, University of Michigan.

Introduction: Prior work demonstrates that fibular compound motor action potential (CMAP) amplitude < 4.0 mV predicts impairment of ankle proprioceptive precision and increased fall risk. Extensor digitorum brevis (EDB) inspection may present a simple clinical surrogate for CMAP amplitude. Read More

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Comparison of renal region, cerebral and peripheral oxygenation for predicting postoperative renal impairment after CABG.

J Clin Monit Comput 2021 Apr 20. Epub 2021 Apr 20.

Department of Anaesthesiology, University Medical Centre Groningen, Hanzeplein 1, Groningen, 9713 GZ, The Netherlands.

Patients undergoing coronary artery bypass grafting (CABG) are at risk of developing postoperative renal impairment, amongst others caused by renal ischemia and hypoxia. Intra-operative monitoring of renal region tissue oxygenation (SrtO) might be a useful tool to detect renal hypoxia and predict postoperative renal impairment. Therefore, the aim of this study was to assess the ability of intra-operative SrtO to predict postoperative renal impairment, defined as an increase of serum creatinine concentrations of  > 10% from individual baseline, and compare this with the predictive abilities of peripheral and cerebral tissue oxygenation (SptO and SctO, respectively) and renal specific tissue deoxygenation. Read More

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The Effects of the Traditional Scaling Technique Versus a Modified Scaling Technique on Muscle Activity and Pinch Force Generation: A pilot study.

J Dent Hyg 2021 Apr;95(2):6-13

Department of Exercise and Sport Science at the University of North Carolina, Chapel Hill, NC, USA.

Dental hygienists perform precision instrumentation tasks repetitively throughout the workday, placing them at increased risk for developing a musculoskeletal disorder. The purpose of this pilot study was to determine differences in muscle activity and pinch force generation between the traditional scaling technique and a modified scaling technique. A convenience sample of dental hygienists (n=12) acted as their own controls in this counterbalance-designed pilot study. Read More

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Hand grip strength and fatigability: correlation with clinical parameters and diagnostic suitability in ME/CFS.

J Transl Med 2021 Apr 19;19(1):159. Epub 2021 Apr 19.

Institute of Medical Immunology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin and Berlin Institute of Health, 13353, Berlin, Germany.

Background: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a complex and debilitating disease accompanied by muscular fatigue and pain. A functional measure to assess muscle fatigability of ME/CFS patients is, however, not established in clinical routine. The aim of this study is to evaluate by assessing repeat maximum handgrip strength (HGS), muscle fatigability as a diagnostic tool and its correlation with clinical parameters. Read More

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A deep analysis of the proteomic and phosphoproteomic alterations that occur in skeletal muscle after the onset of immobilization.

J Physiol 2021 Apr 19. Epub 2021 Apr 19.

Department of Comparative Biosciences, University of Wisconsin - Madison, Madison, Wisconsin, USA.

 A decrease in protein synthesis plays a major role in the loss of muscle mass that occurs in response to immobilization.  In mice, immobilization leads to a rapid (within 6 hr) and progressive decrease in the rate of protein synthesis and this effect is mediated by a decrease in translational efficiency.  Deep proteomic and phosphoproteomic analyses of mouse skeletal muscles revealed that the rapid immobilization-induced decrease in protein synthesis cannot be explained by changes in the abundance or phosphorylation state of proteins that have been implicated in the regulation of translation. Read More

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The Relationship Between Neuromuscular Function and the W' in Elite Cyclists.

Int J Sports Physiol Perform 2021 Apr 19:1-7. Epub 2021 Apr 19.

Purpose: To assess the association between the W' and measures of neuromuscular function relating to the capacity of skeletal muscle to produce force in a group of elite cyclists.

Methods: Twenty-two athletes specializing in a range of disciplines and competing internationally volunteered to participate. Athletes completed assessments of maximum voluntary torque (MVT), voluntary activation, and isometric maximum voluntary contraction to measure rate of torque development (RTD). Read More

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Impact of Upper Extremity Impairment and Trunk Control on Self-Care Independence in Children With Upper Motor Neuron Lesions.

Phys Ther 2021 Apr 19. Epub 2021 Apr 19.

Swiss Children's Rehab, University Children's Hospital Zurich, Affoltern am Albis, Switzerland.

Objective: We evaluated the relative importance of different approaches measuring upper extremity selective voluntary motor control (SVMC), spasticity, strength, and trunk control for explaining self-care independence in children affected by upper motor neuron lesions.

Methods: Thirty-one patients (12.5 ± 3. Read More

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[The relationship of muscle dysmorphia to the body image and early maladaptive schemata created by parental behaviours].

Psychiatr Hung 2021 ;36(2):113-123

Debreceni Egyetem Nepegeszsegugyi Kar Magatartastudomanyi Intezet Debrecen, Hungary, E-mail:

Introduction: the purpose of our study was to investigate the link between specific traits that determine muscle dysmorphia in bodybuilders and the parental behaviours which play a role in developing these schemata, as well as the eating-disorder-specific traits which differentiate bodybuilders from the normal population.

Aim: conceptualising the similarities of personality traits in case of muscle dysmorphia and eating disorders, as well as their etiology based on the schema theory.

Method: to measure muscle dysmorphia was used the Muscle Appearance Satisfaction Scale. Read More

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January 2021

Tonic stretch reflex threshold as a measure of spasticity after stroke: Reliability, minimal detectable change and responsiveness.

Clin Neurophysiol 2021 Mar 26. Epub 2021 Mar 26.

School of Physical and Occupational Therapy, Faculty of Medicine and Health Sciences, McGill University, Montreal, Canada; Center for Interdisciplinary Research in Rehabilitation (CRIR), Montreal, Canada.

Objective: To determine inter-rater reliability, minimal detectable change and responsiveness of Tonic Stretch Reflex Threshold (TSRT) as a quantitative measure of elbow flexor spasticity.

Methods: Elbow flexor spasticity was assessed in 55 patients with sub-acute stroke by determining TSRT, the angle of spasticity onset at rest (velocity = 0°/s). Elbow flexor muscles were stretched 20 times at different velocities. Read More

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Does Ostmann's fat pad size correlate with development of chronic otitis media in children?

Int J Pediatr Otorhinolaryngol 2021 Apr 14;145:110710. Epub 2021 Apr 14.

Department of Otorhinolaryngology - Head and Neck Surgery, Meir Medical Center, Kfar Saba, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. Electronic address:

Objective: To compare Ostmann's fat pad (OFP) size between healthy ears and ears with chronic otitis media with cholesteatoma (COMwC) in children, to assess its role in the disease.

Methods: MRI scans of 29 children with unilateral COMwC with conductive hearing loss were used to measure OFP, represented by the maximal diameter of the high intensity area medial to the tensor veli palatini muscle (TVP): M1. A reference diameter was defined from the medial border of OFP reaching the medial border of the medial pterygoid muscle: M2. Read More

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Temporal evolution of the biological response to laser-induced refractive index change (LIRIC) in rabbit corneas.

Exp Eye Res 2021 Apr 14:108579. Epub 2021 Apr 14.

The Institute of Optics, University of Rochester, Rochester, NY, 14627, USA; The Center for Visual Science, University of Rochester, Rochester, NY, 14627, USA; The Flaum Eye Institute, University of Rochester, Rochester, NY, 14642, USA. Electronic address:

Laser induced refractive index change (LIRIC) is a new, non-incisional, non-ablative, femtosecond photo-modification technique being developed for vision correction in humans. Prior, ex-vivo studies showed intra-tissue refractive index change to induce minimal cell death, restricted to the laser focal zone in the corneal stroma, and with no observable damage to the epithelium or endothelium. Here, we used live rabbits to ascertain longer-term consequences of LIRIC in vivo. Read More

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Respiratory muscle imaging by ultrasound and MRI in neuromuscular disorders.

Eur Respir J 2021 Apr 16. Epub 2021 Apr 16.

Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands

Respiratory muscle weakness is common in neuromuscular disorders and leads to significant respiratory difficulties. Therefore, reliable and easy assessment of respiratory muscle structure and function in neuromuscular disorders is crucial. In the last decade, ultrasound and MRI emerged as promising imaging techniques to assess respiratory muscle structure and function. Read More

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Critical oxygenation: Can muscle oxygenation inform us about critical power?

Med Hypotheses 2021 Mar 23;150:110575. Epub 2021 Mar 23.

Institute of Sport Science, University of Bern, Bern Bremgartenstrasse 145, 3012 Bern, Switzerland.

The power-duration relationship is well documented for athletic performance and is formulated out mathematically in the critical power (CP) model. The CP model, when applied properly, has great predictive power, e.g. Read More

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Clinical evidence for an accessible modification to the Scott resection-recession procedure, using a matching duction technique.

J AAPOS 2021 Apr 12. Epub 2021 Apr 12.

Purpose: To evaluate the resection-recession procedure on a single muscle for the management of incomitant strabismus using an alternative calculation.

Methods: The medical records of adult patients undergoing combined adjustable resection-recession surgery on a single rectus muscle at one institution from 2008 to 2019 were reviewed retrospectively. Each patient had a full orthoptic evaluation before and at least 10 weeks after surgery. Read More

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The Effect of Quadriceps Muscle Length on Maximum Neuromuscular Electrical Stimulation Evoked Contraction, Muscle Architecture, and Tendon-Aponeurosis Stiffness.

Front Physiol 2021 29;12:633589. Epub 2021 Mar 29.

Graduate Program in Rehabilitation Sciences, Faculdade de Ceilândia, Centro Metropolitano, Universidade de Brasília, Brasília, Brazil.

Muscle-tendon unit length plays a crucial role in quadriceps femoris muscle (QF) physiological adaptation, but the influence of hip and knee angles during QF neuromuscular electrical stimulation (NMES) is poorly investigated. We investigated the effect of muscle length on maximum electrically induced contraction (MEIC) and current efficiency. We secondarily assessed the architecture of all QF constituents and their tendon-aponeurosis complex (TAC) displacement to calculate a stiffness index. Read More

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Advancements in the Protocol for Rate of Force Development/Relaxation Scaling Factor Evaluation.

Front Hum Neurosci 2021 29;15:654443. Epub 2021 Mar 29.

Faculty of Health Sciences, University of Primorska, Izola, Slovenia.

Brief submaximal actions are important for wide range of functional movements. Until now, rate of force development and relaxation scaling factor (RFD-SF and RFR-SF) have been used for neuromuscular assessment using 100-120 isometric pulses which requires a high level of attention from the participant and may be influenced by physiological and/or psychological fatigue. All previous studies have been conducted on a smaller number of participants which calls into question the eligibility of some of the outcome measures reported to date. Read More

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Quantitative Muscle Ultrasonography Using 2D Textural Analysis: A Novel Approach to Assess Skeletal Muscle Structure and Quality in Chronic Kidney Disease.

Ultrason Imaging 2021 Apr 15:1617346211009788. Epub 2021 Apr 15.

Department of Health Sciences, University of Leicester, Leicester, UK.

Chronic kidney disease (CKD) is characterized by progressive reductions in skeletal muscle function and size. The concept of muscle quality is increasingly being used to assess muscle health, although the best means of assessment remains unidentified. The use of muscle echogenicity is limited by an inability to be compared across devices. Read More

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Evidence for Role of Capillaries in Regulation of Skeletal Muscle Oxygen Supply.

Microcirculation 2021 Apr 14:e12699. Epub 2021 Apr 14.

Biomedical Engineering Graduate Program, The University of Western Ontario, London, Ontario, Canada.

How oxygen (O ) supply to capillaries is regulated to match the tissue's demand is unknown. Erythrocytes have been proposed as sensors in this regulatory mechanism since they release ATP, a vasodilator, in an oxygen saturation (SO ) dependent manner. ATP causes hyperpolarization of endothelial cells resulting in conducted vasodilation in arterioles. Read More

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Evidence on definitions, concepts, outcome instruments, and interventions for chronic fatigue in spinal cord injury: a scoping review protocol.

JBI Evid Synth 2021 Apr 12. Epub 2021 Apr 12.

Rehabilitation Research Program, G.F. Strong Rehabilitation Centre, Vancouver, BC, Canada Faculty of Medicine, Amsterdam University Medical Centre-University of Amsterdam, Amsterdam, Netherlands Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada Department of Occupational Science and Occupational Therapy, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada International Collaboration on Repair Discoveries, Vancouver, BC, Canada Division of Physical Medicine and Rehabilitation, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.

Objective: The objective of this review is to review the existing evidence on definitions, concepts, measurement instruments, and interventions for chronic fatigue in spinal cord injury.

Introduction: Chronic fatigue in people with spinal cord injury is an under-studied issue that affects between 25% and 56.6% of people with spinal cord injury. Read More

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Anatomical predictors of long-term urinary incontinence after robot-assisted laparoscopic prostatectomy: A systematic review.

Neurourol Urodyn 2021 Apr 14. Epub 2021 Apr 14.

Chief of Urology Service, Hospital Universitario Virgen del Rocío, Seville, Spain.

Aims: There is scarce evidence of anatomical risk factors that might affect long-term post-prostatectomy incontinence (PPI) in patients undergoing robot-assisted laparoscopic prostatectomy (RALP). This systematic review aims to identify anatomical measurements in preoperative magnetic resonance imaging (MRI) that might be associated with increased risk of urinary incontinence (UI) 1 year after RALP.

Methods: A comprehensive search on Pubmed and Scopus databases up to November 2020 was performed. Read More

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Stapedial Reflex: A Possible Novel Biomarker of Early Bulbar Involvement in Amyotrophic Lateral Sclerosis Patients.

Audiol Neurootol 2021 Apr 13:1-8. Epub 2021 Apr 13.

ENT Unit, Department of Surgical Sciences, University of Turin, Turin, Italy.

Background And Aim: Amyotrophic lateral sclerosis (ALS) is a neuromuscular progressive disorder, characterized by limb and bulbar muscle wasting and weakness. 30% of patients present a bulbar onset, while 70% a spinal outbreak, although most of them develop bulbar impairment later on. Due to the lack of an early biomarker of bulbar involvement, we chose to evaluate the role of stapedial reflex (SR) in order to predict preclinical bulbar impairment in ALS. Read More

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Margin of safety for needle puncture of a radial artery.

J Anesth 2021 Apr 12. Epub 2021 Apr 12.

Department of Anesthesiology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minami-Koshigaya, Koshigaya, Saitama, 343-8555, Japan.

The radial artery is the preferred site for arterial cannulation because of consistent anatomic accessibility, ease of cannulation, and a low incidence of complications. One possible risk associated with cannulation is an injury to the superficial branch of the radial nerve. The radial nerve divides to the superficial branch and the deep branch at the top of the forearm, and the superficial branch lies behind the brachioradialis muscle close to the lateral side of the radial artery and terminates the lateral side of the radial artery about 7 cm proximal to the wrist. Read More

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A new radiological measurement method used to evaluate the modified transconjunctival orbital fat decompression surgery.

BMC Ophthalmol 2021 Apr 13;21(1):176. Epub 2021 Apr 13.

Department of Radiology, Chengdu First People's Hospital, Chengdu, Sichuan Province, China.

Purpose: A new radiological method was used to evaluate the plastic effect of modified transconjunctival orbital fat decompression surgery in patients with inactive thyroid-associated ophthalmopathy.

Methods: In this study, 10 inactive patients (14 eyes) with moderate to severe thyroid-associated ophthalmopathy were selected. The patients underwent modified transconjunctival orbital fat decompression surgery. Read More

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Electrophysiological reactions to intraoperative irritation of the optic nerve. Case report and review of possible mechanisms.

Neurochirurgie 2021 Apr 9. Epub 2021 Apr 9.

Department of Neurosurgery, Meshalkin National Medical Research Centre, Rechkunovskaya str., 15, 630055, Novosibirsk, Russian Federation. Electronic address:

Background: Intraoperative control of optic nerve function conservation during neurosurgical operations currently relies mainly on visual evoked potential monitoring. Unfortunately, this detects peril only when the visual pathways are already compromised, sometimes irreversibly. In contrast, electrophysiological stimulation mapping of the nerves can be a fully preventive measure. Read More

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An International Continence Society (ICS) report on the terminology for pelvic floor muscle assessment.

Neurourol Urodyn 2021 Apr 12. Epub 2021 Apr 12.

Urology Department, University Hospital Fundación Sante Fé de Bogotá, Bogotá, Colombia.

Introduction: The terminology for female and male pelvic floor muscle (PFM) assessment has expanded considerably since the first PFM function and dysfunction standardization of terminology document in 2005. New terms have entered assessment reports, and new investigations to measure PFM function and dysfunction have been developed. An update of this terminology was required to comprehensively document the terms and their definitions, and to describe the assessment method and interpretation of the finding, to standardize assessment procedures and aid diagnostic decision making. Read More

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Effect of Short-Term Homebased Pre- and Postoperative Exercise on Recovery after Colorectal Cancer Surgery (PHYSSURG-C): A Randomized Clinical Trial.

Ann Surg 2021 Apr 9. Epub 2021 Apr 9.

Scandinavian Surgical Outcomes Research Group (SSORG), Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden Region Västra Götaland, Sahlgrenska University Hospital, Department of Pediatric Oncology, Gothenburg, Sweden Region Västra Götaland, Alingsås Hospital, Department of Surgery, Alingsås, Sweden Region Västra Götaland, Sahlgrenska University Hospital, Department of Surgery, Gothenburg, Sweden Center for Health and Performance, Dept of molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden Region Västra Götaland, Sahlgrenska University Hospital, Department of Medicine, Gothenburg, Sweden Department of Health and Rehabilitation/Physiotherapy, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden Department of Surgery, Skaraborgs hospital, Skövde, Sweden.

Objective: To determine the effect of a short-term, unsupervised exercise intervention before and after colorectal cancer surgery on self-assessed physical recovery.

Summary Background Data: Preoperative exercise interventions could help improve recovery after colorectal cancer surgery and is currently recommended.

Methods: A randomized, parallel, open-label trial in six university or regional hospitals in Sweden. Read More

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E-Health & Innovation to Overcome Barriers in Neuromuscular Diseases. Report from the 1st eNMD Congress: Nice, France, March 22-23, 2019.

J Neuromuscul Dis 2021 Apr 2. Epub 2021 Apr 2.

Université Côte d'Azur (UCA), Centre Hospitalier Universitaire de Nice, Peripheral Nervous System and Muscle Department, Rare Neuromuscular Disease Reference Center, ERN-Euro-NMD, Nice, France.

By definition, neuromuscular diseases are rare and fluctuating in terms of symptoms; patients are often lately diagnosed, do not have enough information to understand their condition and be proactive in their management. Usually, insufficient resources or services are available, leading to patients' social burden. From a medical perspective, the rarity of such diseases leads to the unfamiliarity of the medical staff and caregiver and an absence of consensus in disease assessment, treatment, and management. Read More

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Flexor digitorum superficialis muscular activity is more reliable than mentalis muscular activity for rapid eye movement sleep without atonia quantification.

Sleep 2021 Apr 12. Epub 2021 Apr 12.

Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria.

Study Objectives: To evaluate interrater reliability for artefact correction in the context of semi-automated quantification of rapid eye movement (REM) sleep without atonia (RWA) in the mentalis and flexor digitorum superficialis (FDS) muscles.

Methods: We included video-polysomnographies of 14 subjects with apnea-hypopnea-index in REM sleep (AHIREM)<15/h and 11 subjects with AHIREM≥15/h. Eight subjects had isolated REM sleep behavior disorder. Read More

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Aging-associated skeletal muscle defects in HER2/Neu transgenic mammary tumor model.

JCSM Rapid Commun 2021 Jan-Jun;4(1):24-39. Epub 2020 Jul 15.

Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA.

Background: Loss of skeletal muscle volume and resulting in functional limitations are poor prognostic markers in breast cancer patients. Several molecular defects in skeletal muscle including reduced MyoD levels and increased protein turn over due to enhanced proteosomal activity have been suggested as causes of skeletal muscle loss in cancer patients. However, it is unknown whether molecular defects in skeletal muscle are dependent on tumor etiology. Read More

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Body Composition in Japanese Girls with Adolescent Idiopathic Scoliosis.

Spine Surg Relat Res 2021 31;5(2):68-74. Epub 2020 Aug 31.

Department of Orthopaedic Surgery, School of Medicine, Kitasato University, Sagamihara, Japan.

Introduction: There are few reports on body composition, particularly muscle mass, in patients with adolescent idiopathic scoliosis (AIS). The purpose of this study was to measure body composition including muscle mass and estimated bone mass of patients with AIS using bioelectrical impedance analysis (BIA) and to clarify the relationship between the degree of scoliosis and body composition.

Methods: The subjects were 210 girls (mean age 14. Read More

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