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Lingual Exercise in Older Veterans With Dysphagia: A Pilot Investigation of Patient Adherence.

J Speech Lang Hear Res 2021 Apr 12:1-13. Epub 2021 Apr 12.

Department of Communication Sciences and Disorders, University of Wisconsin-Madison.

Purpose Adherence is a concern in dysphagia management. Poor adherence with recommendations can negatively affect treatment efficacy and patient outcomes. For exercise-based therapies, low adherence can alter the dose of exercise delivered to the muscle, which can diminish impact of exercise. Read More

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Concurrent Validation and Reference Values of Gluteus Medius Clinical Test.

Int J Sports Phys Ther 2021 Apr 1;16(2):335-341. Epub 2021 Apr 1.

Head of the Physical Therapy Department, Minas Tenis Clube.

Context: The hip abductor muscles, mainly the gluteus medius, are responsible for controlling hip adduction in a closed kinetic chain. Frontal plane knee alignment, assessed during functional activities such squatting, jumping and running, may overload joint structures, like the anterior cruciate ligament and patellofemoral joint. The hand-held dynamometer is reliable and effective for testing the muscular strength of the hip abductors. Read More

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Reliability of Sonoelastography Measurement of Tongue Muscles and Its Application on Obstructive Sleep Apnea.

Front Physiol 2021 25;12:654667. Epub 2021 Mar 25.

Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey.

Few studies have explored the feasibility of shear-wave ultrasound elastography (SWUE) for evaluating the upper airways of patients with obstructive sleep apnea (OSA). This study aimed to establish a reliable SWUE protocol for evaluating tongue muscle elasticity and its feasibility and utility in differentiating patients with OSA. Inter-rater and intra-rater reliability of SWUE measurements were tested using the intraclass correlation coefficients. Read More

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A factorization-based algorithm to predict EMG data using only kinematics information.

Int J Numer Method Biomed Eng 2021 Apr 9:e3463. Epub 2021 Apr 9.

Simulation and Movement Analysis Lab (SIMMA Lab) Barcelona East School of Engineering (EEBE), Universitat Politècnica de Catalunya, Barcelona, Catalonia, Spain.

EMG analyses have several applications, such as identifying muscle excitation patterns during rehabilitation or training plans, or controlling EMG-driven devices. However, experimental measurements can be time consuming or difficult to obtain. This study presents a simple algorithm to predict EMG signals that can be applied in real time during running, given only the instantaneous vector of kinematics. Read More

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Do Benign Mass Lesions in the Superficial Lobe of Parotid Gland Influence Landmark-Based Search for Facial Nerve Trunk At Surgery?

Medeni Med J 2021 26;36(1):36-43. Epub 2021 Mar 26.

Kolkata Medical College and Hospital, Department of Otorhinolaryngology - Head and neck Surgery, West Bengal, India.

Objective: To assess the influence of benign mass lesions in the superficial lobe of parotid on the known anatomic landmarks for identifying the facial nerve trunk.

Method: Patients with unilateral biopsy-proven benign mass lesions in the superficial parotid were selected for this observational study. During superficial/partial superficial parotidectomy, distance of the facial nerve trunk from each landmark was assessed using spring calliper and correlated with the lesion's volume (measured from the pre-operative imaging). Read More

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Masticatory performance is influenced by masticatory muscle activity balance and the cumulative occlusal contact area.

Arch Oral Biol 2021 Mar 30;126:105113. Epub 2021 Mar 30.

Orthodontic Section, Department of Preventive Dentistry, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, Thailand. Electronic address:

Objective: To investigate the influence of masticatory muscle activity balance, occlusal contact area balance and the area of occlusal contact on masticatory performance in healthy dentate adults.

Design: This cross-sectional study included ninety-three healthy subjects with complete dentition. Surface electromyography (sEMG) was used to record bilateral anterior temporalis activity and masseter muscle activity during maximum voluntary clenching and while chewing a test food. Read More

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Improving Tumor Hypoxia Location in F-Misonidazole PET with Dynamic Contrast-enhanced MRI Using Quantitative Electron Paramagnetic Resonance Partial Oxygen Pressure Images.

Radiol Imaging Cancer 2021 Mar 26;3(2):e200104. Epub 2021 Mar 26.

Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637.

Purpose: To enhance the spatial accuracy of fluorine 18 (F) misonidazole (MISO) PET imaging of hypoxia by using dynamic contrast-enhanced (DCE) MR images as a basis for modifying PET images and by using electron paramagnetic resonance (EPR) partial oxygen pressure (pO) as the reference standard.

Materials And Methods: Mice ( = 10) with leg-borne MCa4 mammary carcinomas underwent EPR imaging, T2-weighted and DCE MRI, and F-MISO PET/CT. Images were registered to the same space for analysis. Read More

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Intraclass correlation coefficient of trunk muscle thicknesses in different positions measured using ultrasonography.

J Phys Ther Sci 2021 Mar 17;33(3):283-287. Epub 2021 Mar 17.

Department of Physical Therapy, International University of Health and Welfare: 2600-1 Kitakanemaru, Otawara, Tochigi 324-8501, Japan.

[Purpose] This study aimed to clarify the required number of measurements to calculate trunk muscle thickness at each position. [Participants and Methods] The participants were 30 elderly males aged >65 years. The right lumbar multifidus (L2), lumbar multifidus (L5), erector spinae, transversus abdominis, internal oblique, and external oblique muscle thicknesses were measured on longitudinal images obtained using ultrasonography in the lying, sitting, and standing positions. Read More

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Polyethyleneimine-functionalized FeO/attapulgite particles for hydrophilic interaction-based magnetic dispersive solid-phase extraction of fluoroquinolones in chicken muscle.

Anal Bioanal Chem 2021 Apr 4. Epub 2021 Apr 4.

Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.

Fluoroquinolone (FQ) residues in foods of animal origin may threaten public health but are challenging to determine because of their low contents and complex matrices. In this study, novel polyethyleneimine-functionalized FeO/attapulgite magnetic particles were prepared by a simple co-mixing method and applied as hydrophilic sorbents for the magnetic dispersive solid-phase extraction (MSPE) of three FQs, i.e. Read More

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Body composition measured by bioelectrical impedance analysis is a viable alternative to magnetic resonance imaging in children with non-alcoholic fatty liver disease.

JPEN J Parenter Enteral Nutr 2021 Apr 2. Epub 2021 Apr 2.

Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.

Objective: Determine the relationship between BIA and MRI-obtained measures of body composition in children with NAFLD.

Methods: Obese youth with NAFLD were included in this study. Patients had both bioelectrical impedance (BIA) and abdominal magnetic resonance imaging (MRI). Read More

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Knee Extensor Muscle Strength Is More Important Than Postural Balance for Stair-Climbing Ability in Elderly Patients with Severe Knee Osteoarthritis.

Int J Environ Res Public Health 2021 Mar 31;18(7). Epub 2021 Mar 31.

Department of Physical Therapy, University of Valencia, 46010 Valencia, Spain.

Knee osteoarthritis is a chronic joint disease which damages articular cartilage. In its severe stages, it results in impairments in balance and muscle strength loss, which affect daily life activities such as walking or climbing stairs. This study sought to investigate associated factors with stair-climbing ability in this population, with special interest in measuring the relevance of postural balance for this task. Read More

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Association between Oxygen Consumption and Surface Electromyographic Amplitude and Its Variation within Individual Calf Muscles during Walking at Various Speeds.

Sensors (Basel) 2021 Mar 3;21(5). Epub 2021 Mar 3.

Laboratory of Neuromuscular Biomechanics, Faculty of Liberal Arts and Sciences, School of International Liberal Studies, Chukyo University, Nagoya 466-8666, Japan.

Surface electromyography (EMG) has been used to estimate muscle work and physiological burden of the whole body during human movements. However, there are spatial variations in surface EMG responses within individual muscles. The aim of this study was to investigate the relation between oxygen consumption and surface EMG responses of lower leg muscles during walking at various speeds and to quantify its spatial variation within an individual muscle. Read More

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Factors Affecting Quality of Life at Discharge among Patients with Osteoporotic Vertebral Fractures.

South Med J 2021 Apr;114(4):252-259

From the Department of Rehabilitation, Faculty of Rehabilitation, Hiroshima International University, Hiroshima, the Department of Rehabilitation, Saiseikai Kure Hospital, Hiroshima, and the Department of Health Informatics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.

Objectives: This study aimed to identify factors, including physical functions and activities that affect quality of life (QOL) at discharge among patients with osteoporotic vertebral fractures.

Methods: Patients with osteoporotic vertebral fractures were included in our prospective cohort study. Multiple regression analysis was performed to determine the predictors of QOL at discharge using two models: model 1, basic medical information and physical functions at admission, and model 2, basic medical information, physical function, and activity after 4 weeks of admission. Read More

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Decreased Muscular Perfusion in Dermatomyositis: Initial Results Detected by Inflow-Based Vascular-Space-Occupancy MRI.

AJR Am J Roentgenol 2021 Mar 31:1-8. Epub 2021 Mar 31.

Department of Medical Imaging, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou Ave N, Guangzhou, Guangdong 510515, PR China.

This study aimed to determine whether inflow-based vascular-space-occupancy (iVASO) MRI could reproducibly quantify skeletal muscle perfusion and differentiate patients with dermatomyositis (DM) from healthy subjects. A total of 25 patients with DM and 22 healthy volunteers underwent iVASO MRI in a 3-T MRI scanner. Maximum and mean arteriolar muscle blood volume (MBV) values of four subgroups of muscles (normal muscles, morphologically normal-appearing muscles, edematous muscles, and atrophic or fat-infiltrated muscles) were obtained. Read More

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Intrasession and Intersession Reliability of Isometric Trunk and Hip Strength Measurements Using the Portable Tension Dynamometer.

J Sport Rehabil 2021 Mar 30:1-4. Epub 2021 Mar 30.

Context: The trunk/pelvis is an important link between the upper- and lower-extremities. Therefore, assessing strength of the trunk and hip muscles that control the segments is clinically meaningful. While an isokinetic dynamometer can be used to measure trunk strength, the equipment is expensive and not portable. Read More

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Validity and reliability of high-resolution ultrasound imaging for the assessment of regional body composition in stage 5 chronic kidney disease patients undergoing continuous ambulatory peritoneal dialysis.

Perit Dial Int 2021 Mar 30:8968608211002384. Epub 2021 Mar 30.

Centre of Health, Activity and Rehabilitation Research, School of Health Sciences, 3122Queen Margaret University, Edinburgh, UK.

Background: Accurate measurement of muscle mass is an important research and clinical tool. High-resolution ultrasound (US) has shown potential as a method to assess muscle and fat mass at specific anatomical sites. However, there is limited evidence for the reliability of US to measure muscle size in patients receiving continuous ambulatory peritoneal dialysis (CAPD). Read More

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Inter- and Intra-Rater Reliability of Handheld Dynamometry for Lower Extremity Strength Testing in Pre-Professional Dancers.

J Dance Med Sci 2021 Mar 29. Epub 2021 Mar 29.

Handheld dynamometry (HHD) using external fixation has demonstrated high inter- and intra-rater reliability. Handheld dynamometry offers an objective way to quantify strength; however, setting up external stabilization devices for HHD can be time consuming. This study examined the reliability of HHD for lower extremity strength in dancers using body weight stabilization. Read More

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Anterior shin muscles CMAP measurements: Normal limits of symmetry and intra- and interobserver reliability.

Clin Neurophysiol Pract 2021 15;6:93-96. Epub 2021 Feb 15.

Department of Physical Medicine and Rehabilitation, ZNA Middelheim, Antwerp, Belgium.

Objective: The normal limits of symmetry for the compound muscle action potential of the shin muscles (CMAPshin) have not been determined yet. The goal of this study is to provide extensive data on the limits of symmetry and the reliability of CMAPshin.

Methods: The study was conducted in normal healthy males and females. Read More

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February 2021

Routine abdominal magnetic resonance imaging can determine psoas muscle area in paediatric Crohn's disease and correlates with bioelectrical impedance spectroscopy measures of lean mass.

Clin Nutr ESPEN 2021 04 13;42:233-238. Epub 2021 Feb 13.

Department of Paediatric Gastroenterology, Southampton Children's Hospital, Southampton, UK. Electronic address:

Background: Paediatric Crohn's disease (CD) has been associated with undernutrition. Accurate and accessible measures of body composition would provide data to personalise nutritional therapy. We assessed feasibility of MRI-derived measures of psoas cross-sectional area (PCSA) in paediatric CD and correlated with anthropometric and bioelectrical impedance spectroscopy (BIS) measures. Read More

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The effect of multiplanar loading on the intradiscal pressure of the whole human spine: systematic review and meta-analysis.

C Liebsch H J Wilke

Eur Cell Mater 2021 Mar 21;41:388-400. Epub 2021 Mar 21.

Institute of Orthopaedic Research and Biomechanics, Helmholtzstraße 14, 89081 Ulm,

For spinal load and muscle force estimation as well as for numerical model and experimental setup validation, data on human intradiscal pressure are essential. Therefore, the aim of the present meta-analysis was to summarise all in vitro measurements of human intradiscal pressure performed under defined boundary conditions, i.e. Read More

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Reliability of ultrasound imaging of pelvic floor morphology and function among females who have undergone pelvic radiotherapy.

Neurourol Urodyn 2021 Mar 19. Epub 2021 Mar 19.

Department of Rehabilitation, Faculté de Médecine, Université Laval, Québec, Québec, Canada.

Aims: To investigate the intra- and inter-rater reliability of two-dimensional (2D) transperineal ultrasound imaging (USI) measures of bladder wall thickness (BWT), urethral length (UL), and parameters related to levator plate length (LP) and transient changes in LP during pelvic floor muscle (PFM) contraction, and on Valsalva in women who received radiation therapy (RT) for treatment of pelvic cancer.

Methods: Twenty women with a history of RT for the treatment of pelvic cancer were assessed independently by two raters on the same day. Five outcomes were assessed for reliability: BWT, UL, and LP at rest (LP-R), during a maximal voluntary contraction of the PFMs (LP-MVC), and during a maximal-effort Valsalva maneuver (LP-MVM). Read More

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Which Functional Outcomes Can be Measured in Low Back Pain Trials and Therapies? A Prospective 2-Year Factor-, Cluster-, and Reliability-Multicenter Analysis on 42 Variables in 1049 Individuals.

Spine (Phila Pa 1976) 2021 Mar 12. Epub 2021 Mar 12.

Department of Sports Medicine and Exercise Physiology, Goethe University Frankfurt, Frankfurt am Main, Germany University Outpatient Clinic, Centre of Sports Medicine, University of Potsdam, Potsdam, Germany Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany Department of Pain Management, Center of Orthopaedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg, Germany University Hospital Carl Gustav Carus at Technical University Dresden, Dresden, Germany Department of Sociology of Physical Activity and Health, University of Potsdam, Potsdam, German.

Study Design: Prospective 2-year factor-, cluster-, and reliability-multicenter analysis.

Objective: To provide evidence on the uniqueness and usefulness of a set of potential relevant outcomes.

Summary Of Background Data: A very high number of functional outcomes that can be utilized as variables in low back pain (LBP) trials exists. Read More

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Association between the handgrip strength and the isokinetic muscle function of the elbow and the knee in asymptomatic adults.

SAGE Open Med 2021 27;9:2050312121993294. Epub 2021 Feb 27.

Laboratory of Epidemiology and Human Movement, Federal University of São Paulo, Santos, Brazil.

Background: The handgrip strength is a practical, valid, reliable, low-cost tool that presents strong correlations with several health conditions. However, handgrip strength may be inaccurate to prospectively predict the variability of muscular function since the decrease in muscular strength over the years varies according to a muscular group or between upper and lower limbs. Our hypothesis is that the handgrip strength cannot explain the variance of muscle function prospectively. Read More

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February 2021

Hill-based musculoskeletal model for a fracture reduction robot.

Int J Med Robot 2021 Mar 10:e2252. Epub 2021 Mar 10.

School of Artificial Intelligence and Data Science, Hebei University of Technology, Tianjin, China.

Background: The introduction of fracture reduction robot can solve the problem of large reduction forces during fracture reduction surgeries and the need to collect multiple medical images. However, because its safety has not been certified, there are few academic achievements on this type of robot. To calculate the safety factor during its operation, a musculoskeletal model needs to be established to study the constraints of muscles on the robot. Read More

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Simulation guided design of the MRcollar: a MR compatible applicator for deep heating in the head and neck region.

Int J Hyperthermia 2021 ;38(1):382-392

Hyperthermia Unit, Department of Radiotherapy, Erasmus MC Cancer Institute, Rotterdam, The Netherlands.

Purpose: To develop a head and neck hyperthermia phased array system compatible with a 1.5 T magnetic resonance (MR) scanner for noninvasive thermometry.

Methods: We designed a dielectric-parabolic-reflector antenna (DiPRA) based on a printed reflector backed dipole antenna and studied its predicted and measured performance in a flat configuration (30 mm thick water bolus and muscle equivalent layer). Read More

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January 2021