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https://www.readbyqxmd.com/read/28544083/evaluating-abdominal-core-muscle-fatigue-assessment-of-the-validity-and-reliability-of-the-prone-bridging-test
#1
Cedric De Blaiser, Roel De Ridder, Tine Willems, Lieven Danneels, Luc Vanden Bossche, Tanneke Palmans, Philip Roosen
The aims of present study were to research the amplitude and median frequency characteristics of selected abdominal, back and hip muscles of healthy subjects during a prone bridging endurance test, based on surface electromyography (sEMG), (1) to determine if the prone bridging test is a valid field test to measure abdominal muscle fatigue, and (2) to evaluate if the current method of administrating the prone bridging test is reliable. Thirty healthy subjects participated in this experiment. The sEMG activity of seven abdominal, back and hip muscles was bilaterally measured...
May 24, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28538311/intrasession-and-intersession-reliability-of-quadriceps-and-hamstrings-electromyography-during-a-standardized-hurdle-jump-test-with-single-leg-landing
#2
Mark T Cavanaugh, Saied Jalal Aboodarda, David G Behm
Cavanaugh, MT, Aboodarda, SJ, and Behm, DG. Intrasession and intersession reliability of quadriceps' and hamstrings' electromyography during a standardized hurdle jump test with single leg landing. J Strength Cond Res 31(6): 1601-1609, 2017-The objective of this study was to develop a standardized test to determine quadriceps and hamstrings muscle activation in a position emulating a noncontact anterior cruciate ligament injury. We assessed the intrasession and intersession reliability of surface electromyography (EMG) of the dominant leg after single-leg landing from a standardized hurdle jump...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28537843/activity-of-periscapular-muscles-and-its-correlation-with-external-oblique-during-push-up-does-scapular-dyskinesis-change-the-electromyographic-response
#3
Rodrigo Cappatode de Araújo, André Luiz Torres Pirauá, Natália Barros Beltrão, Ana Carolina Rodarti Pitangui
Scapular dyskinesis is the term used to describe changes in the positioning or movement of the scapula. Such dysfunction is associated with changes in the activation of the scapular muscles. However, the influence of the axial muscles on the scapular muscles activity of subjects with scapular dyskinesis is unknown. This study aimed to compare the electromyography (EMG) activity of periscapular muscles and its correlation with the external oblique muscle during the execution of push-up performed in different surfaces, in volunteers with and without scapular dyskinesis...
May 24, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28536271/contrasting-modulatory-effects-from-the-dorsal-and-ventral-premotor-cortex-on-primary-motor-cortex-outputs
#4
Sandrine L Côté, Adjia Hamadjida, Stephan Quessy, Numa Dancause
The dorsal and ventral premotor cortices (PMd and PMv) each take part in unique aspects for the planning and execution of hand movements. These premotor areas are components of complex anatomical networks that include the primary motor cortex (M1) of both hemispheres. One way PMd and PMv could play distinct roles for hand movements is by differently modulating the outputs of M1. Yet, patterns of effects from PMd and PMv on the outputs of M1 have not been systematically compared. Our goals were to study how PMd within the same (i...
May 23, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28533005/risk-factors-for-daytime-or-combined-incontinence-in-children-with-cerebral-palsy
#5
Bieke Samijn, Christine Van den Broeck, Ellen Deschepper, Catherine Renson, Piet Hoebeke, Frank Plasschaert, Johan Vande Walle, Erik Van Laecke
PURPOSE: To identify risk factors for daytime or combined urinary incontinence (UI) in children with cerebral palsy (CP). MATERIALS AND METHODS: A cross-sectional case-control study was conducted including children with CP with or without UI from the CP-Reference Centre at *** (blinded for review) and two associated special education schools. Factors were subdivided in three clusters, namely demographic and general medical data, CP classification and bladder and bowel dysfunction...
May 19, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28532874/efficacy-of-kinesiology-tape-versus-postural-correction-exercises-on-neck-disability-and-axioscapular-muscles-fatigue-in-mechanical-neck-dysfunction-a-randomized-blinded-clinical-trial
#6
Aliaa M El-Abd, Abeer R Ibrahim, Haytham M El-Hafez
BACKGROUND: Mechanical neck dysfunction (MND), with axioscapular muscles fatigue, is highly prevalent worldwide. While postural correction is commonly used for its treatment, efficacy of kinesiology tape (KT) has received considerable attention. OBJECTIVES: To determine the effectiveness of KT versus correction exercises on neck disability, and axioscapular muscles fatigue in MND patients. METHODS: 46 MND patients were randomly assigned into 1 of 2 groups receiving 4 weeks treatment of either KT or correction exercises...
April 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28532279/the-effect-of-cold-ambient-temperatures-on-climbing-specific-finger-flexor-performance
#7
Kevin Phillips, Byungjoo Noh, Matthew Gage, Tejin Yoon
Different ambient temperatures are known to affect muscular performance based on the type of contraction. The effect of cold (10°C) and thermoneutral (TN) (24°C) ambient temperatures on finger flexor performance was examined in 12 rock climbers. After 30 min of seated rest in the designated temperature condition, participants completed maximal voluntary contractions (MVC) on a climbing-specific finger flexor assessment device equipped with a crimp grip hold. Participants then completed an intermittent fatiguing task until failure...
May 22, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28527223/muscle-co-contraction-patterns-in-robot-mediated-force-field-learning-to-guide-specific-muscle-group-training
#8
Sara Pizzamiglio, Adela Desowska, Pegah Shojaii, Myriam Taga, Duncan L Turner
BACKGROUND: Muscle co-contraction is a strategy of increasing movement accuracy and stability employed in dealing with perturbation of movement. It is often seen in neuropathological populations. The direction of movement influences the pattern of co-contraction, but not all movements are easily achievable for populations with motor deficits. Manipulating the direction of the force instead, may be a promising rehabilitation protocol to train movement with use of a co-contraction reduction strategy...
May 19, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28526226/experimental-pain-in-the-groin-may-refer-into-the-lower-abdomen-implications-to-clinical-assessments
#9
M K Drew, T S Palsson, R P Hirata, M Izumi, G Lovell, M Welvaert, P Chiarelli, P G Osmotherly, T Graven-Nielsen
OBJECTIVES: To investigate the effects of experimental adductor pain on the pain referral pattern, mechanical sensitivity and muscle activity during common clinical tests. DESIGN: Repeated-measures design. METHODS: In two separate sessions, 15 healthy males received a hypertonic (painful) and isotonic (control) saline injection to either the adductor longus (AL) tendon to produce experimental groin pain or into the rectus femoris (RF) tendon as a painful control...
April 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28523276/improving-the-robustness-of-real-time-myoelectric-pattern-recognition-against-arm-position-changes-in-transradial-amputees
#10
Yanjuan Geng, Oluwarotimi Williams Samuel, Yue Wei, Guanglin Li
Previous studies have showed that arm position variations would significantly degrade the classification performance of myoelectric pattern-recognition-based prosthetic control, and the cascade classifier (CC) and multiposition classifier (MPC) have been proposed to minimize such degradation in offline scenarios. However, it remains unknown whether these proposed approaches could also perform well in the clinical use of a multifunctional prosthesis control. In this study, the online effect of arm position variation on motion identification was evaluated by using a motion-test environment (MTE) developed to mimic the real-time control of myoelectric prostheses...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28522759/effect-of-cyclooxygenase-inhibition-on-the-inspiratory-muscle-metaboreflex-induced-cardiovascular-consequences-in-men
#11
Joshua R Smith, Kaylin D Didier, Shane M Hammer, Andrew M Alexander, Stephanie P Kurti, Steven W Copp, Thomas J Barstow, Craig A Harms
Inspiratory muscle metaboreflex activation increases mean arterial pressure (MAP) and limb vascular resistance (LVR) and decreases limb blood flow (Q̇L). Cyclooxygenase (COX) inhibition has been found to attenuate limb skeletal muscle metaboreflex-induced increases in muscle sympathetic nerve activity. We hypothesized that compared to placebo (PLA), COX inhibition would attenuate inspiratory muscle metaboreflex-induced 1) increases in MAP and LVR and 2) decreases in Q̇L Seven men (22±1 years) were recruited and orally consumed ibuprofen (IB, 10mg/kg) or PLA 90 min prior to performing the cold pressor test (CPT) for 2 min and inspiratory resistive breathing task (IRBT) for 14...
May 18, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28512539/longitudinal-effects-of-rapid-maxillary-expansion-on-masticatory-muscles-activity
#12
Elena Di Palma, Michele Tepedino, Claudio Chimenti, Gianluca M Tartaglia, Chiarella Sforza
BACKGROUND: To investigate the modifications induced by rapid maxillary expansion (RME) on the electromyographic (EMG) activities of the anterior temporal and superficial masseter muscles, in patients without pre-treatment EMG alterations. MATERIAL AND METHODS: Twenty-one patients with unilateral posterior cross-bite selected from the orthodontic department of the University of L'Aquila (Italy), were enrolled. There was no control group in this study since each subject acted as a control of her/himself...
May 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28512504/a-case-report-of-drug-induced-myopathy-involving-extraocular-muscles-after-combination-therapy-with-tremelimumab-and-durvalumab-for-non-small-cell-lung-cancer
#13
William Carrera, Brandon J Baartman, Gregory Kosmorsky
Recently developed anti-tumour therapies targeting immune checkpoints include tremelimumab and durvalumab. These agents have incompletely characterised side effect profiles. The authors report a 68-year-old man treated for non-small cell lung cancer (NSCLC) with a combination of tremelimumab and durvalumab. After treatment he developed diplopia, ptosis, fatigue, weakness, and an inflammatory myopathy affecting the extraocular muscles requiring hospitalisation. Electromyography (EMG) testing and muscle biopsy suggested inflammatory myopathy without sign of myasthenia...
June 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/28504943/towards-multimodal-human-robot-interaction-to-enhance-active-participation-of-users-in-gait-rehabilitation
#14
Kai Gui, Honghai Liu, Dingguo Zhang
Robotic exoskeletons for physical rehabilitation have been utilized for retraining patients suffering from paraplegia and enhancing motor recovery in recent years. However, users are not voluntarily involved in most systems. This work aims to develop a locomotion trainer with multiple gait patterns, which can be controlled by the active motion intention of users. A multimodal human-robot interaction (HRI) system is established to enhance subject's active participation during gait rehabilitation, which includes cognitive human-robot interaction (cHRI) and physical human-robot interaction (pHRI)...
May 11, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28500415/mind-muscle-connection-training-principle-influence-of-muscle-strength-and-training-experience-during-a-pushing-movement
#15
Joaquin Calatayud, Jonas Vinstrup, Markus D Jakobsen, Emil Sundstrup, Juan Carlos Colado, Lars L Andersen
PURPOSE: To investigate the effect of different attentional focus conditions on muscle activity during the push-up exercise and to assess the possible influence of muscle strength and training experience. METHODS: Eighteen resistance-trained men performed 1RM bench press testing and were familiarized with the procedure during the first session. In the second session, three different conditions were randomly performed: regular push-up and push-up focusing on using the pectoralis major and triceps brachii muscles, respectively...
May 12, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28497384/physiological-responses-to-incremental-interval-and-continuous-counterweighted-single-leg-and-double-leg-cycling-at-the-same-relative-intensities
#16
Martin J MacInnis, Nathaniel Morris, Michael W Sonne, Amanda Farias Zuniga, Peter J Keir, Jim R Potvin, Martin J Gibala
PURPOSE: We compared physiological responses to incremental, interval, and continuous counterweighted single-leg and double-leg cycling at the same relative intensities. The primary hypothesis was that the counterweight method would elicit greater normalized power (i.e., power/active leg), greater electromyography (EMG) responses, and lower cardiorespiratory demand. METHODS: Graded-exercise tests performed by 12 men (age: 21 ± 2 years; BMI: 24 ± 3 kg/m(2)) initially established that peak oxygen uptake ([Formula: see text]; 76 ± 8...
May 11, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28483633/gastric-modulation-of-startle-eye-blink
#17
André Schulz, Zoé van Dyck, Annika P C Lutz, Silke Rost, Claus Vögele
Previous assessment methods of gastric interoception either rely on self-reports, or imply invasive procedures. We investigated the reliability of startle methodology as a non-invasive alternative for the assessment of afferent gastric signals. Twenty-four participants were tested on three separate days, on which they were requested to ingest water (either 0, 300 or 600ml), after 8h of fasting. On each assessment day, eye blink responses (EMG) to 10 acoustic startle stimuli (105dB) were assessed at 4 measurement points (before, 0, 7, 14min...
May 5, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28480963/use-of-stimulated-electromyography-in-the-analysis-of-the-neuromuscular-junction-in-children
#18
REVIEW
Matthew C Pitt
A screening test is required to diagnose disorders of the neuromuscular junction (NMJ) in children. This Review describes the development of stimulation potential analysis with concentric needle electrodes (SPACE). This nomenclature was chosen to distinguish the technique from single-fiber methodology because of the difficulties in identifying single-fiber potentials in most studies, particularly those with the most severe abnormalities of the NMJ. Performed on orbicularis oculi in children with proven or probable disorders of the NMJ, it demonstrated a sensitivity of 84%, specificity of 71%, negative predictive value of 95%, and positive predictive value of 36%...
May 8, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28479225/biomechanics-and-pinch-force-of-the-index-finger-under-simulated-proximal-interphalangeal-arthrodesis
#19
Paul Arauz, Karen DeChello, Alexander Dagum, Sue Ann Sisto, Imin Kao
PURPOSE: To analyze the effect of simulated proximal interphalangeal (PIP) joint arthrodesis on distal interphalangeal (DIP) joint free flexion-extension (FE) and maximal voluntary pinch forces. METHODS: Five healthy subjects were tested with the PIP joint unconstrained and constrained to selected angles to produce (1) free FE movements of the DIP joint at 2 selected angles of the metacarpophalangeal joint, and (2) maximal voluntary tip (thumb and index finger) and chuck (thumb, index, and middle fingers) pinch forces...
May 4, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28477392/validity-of-different-tools-to-assess-sleep-bruxism-a-meta-analysis
#20
REVIEW
Elora Casett, Jéssica C Réus, Juliana Stuginski-Barbosa, André L Porporatti, Maria C Carra, Marco A Peres, Graziela De L Canto, Daniele Manfredini
This systematic review and meta-analysis (MA) aimed to evaluate the diagnostic validity of questionnaires, clinical assessment, and portable diagnostic devices compared to the reference standard method polysomnography (PSG) in assessing sleep bruxism (SB). Two reviewers searched electronic databases for diagnostic test accuracy studies that compared questionnaires, clinical assessment or portable diagnostic devices for SB, with the reference standard method PSG, comprising previous studies from all languages and with no restrictions regarding age, gender or time of publication...
May 6, 2017: Journal of Oral Rehabilitation
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