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https://www.readbyqxmd.com/read/28648880/animated-versus-non-animated-biofeedback-therapy-for-dysfunctional-voiding-treatment-does-it-change-the-outcome
#1
Tayfun Oktar, M İrfan Dönmez, Ünsal Özkuvancı, Haluk Ander, Orhan Ziylan
PURPOSE: The aim of this study is to evaluate and compare the effectiveness of animated vs. non-animated biofeedback therapy in the treatment of dysfunctional voiding (DV) in the pediatric age group. METHODS: In this study, children with DV were randomly assigned for animated and non-animated biofeedback therapy. Age, voiding dysfunction symptom scores (VDSS), urinary ultrasound and uroflowmetry parameters such as electromyography (EMG) activity, voided volumes, post voiding residual urine volume (PVR) and maximum flow rate (Qmax) were evaluated...
June 8, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28648714/evaluation-of-a-minimum-norm-based-beamforming-technique-sloreta-for-reducing-tonic-muscle-contamination-of-eeg-at-sensor-level
#2
Azin S Janani, Tyler S Grummett, Trent W Lewis, Sean P Fitzgibbon, Emma M Whitham, Dylan DelosAngeles, Hanieh Bakhshayesh, John O Willoughby, Kenneth J Pope
BACKGROUND: Cranial and cervical muscle activity (electromyogram, EMG) contaminates the surface electroencephalogram (EEG) from frequencies below 20 through to frequencies above 100Hz. It is not possible to have a reliable measure of cognitive tasks expressed in EEG at gamma-band frequencies until the muscle contamination is removed. NEW METHOD: In the present work, we introduce a new approach of using a minimum-norm based beamforming technique (sLORETA) to reduce tonic muscle contamination at sensor level...
June 22, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28645664/muscle-activity-and-masticatory-efficiency-with-bilateral-extension-base-removable-partial-dentures-with-different-cusp-angles
#3
Mahmoud K Al-Omiri
STATEMENT OF PROBLEM: Whether masticatory efficiency and electromyographic activity are influenced by type of artificial teeth and food is unclear. PURPOSE: The purpose of this clinical study was to evaluate the influence of extension base removable partial dentures (RPDs) with different cusp angles: anatomic (33 degrees), semianatomic (20 degrees), and nonanatomic (0 degrees) teeth on masticatory efficiency and muscle activity during the mastication of test foods with different textures...
June 20, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28645314/neuromuscular-function-during-knee-extension-exercise-after-cold-water-immersion
#4
Hitoshi Wakabayashi, Titis Wijayanto, Yutaka Tochihara
BACKGROUND: Human adaptability to cold environment has been focused on in the physiological anthropology and related research area. Concerning the human acclimatization process in the natural climate, it is necessary to conduct a research assessing comprehensive effect of cold environment and physical activities in cold. This study investigated the effect of cold water immersion on the exercise performance and neuromuscular function during maximal and submaximal isometric knee extension...
June 23, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/28645094/quality-assessment-of-shoulder-plyometric-exercises-examining-the-relationship-to-scapular-muscle-activity
#5
Maya Calé-Benzoor, Annelies Maenhout, Michal Arnon, Gershon Tenenbaum, Mia Werrin, Ann Cools
OBJECTIVES: The purpose of the study was to evaluate performance quality of shoulder plyometric exercises, and examine the relationship to scapular muscle activation during an intense exercise bout. DESIGN: Observational study. SETTING: University laboratory. PARTICIPANTS: 32 healthy university students (male/female: 14/18) volunteers. MAIN OUTCOME MEASURES: Subjects performed 10 plyometric exercises...
May 12, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28644567/reliability-of-surface-emg-measurements-from-the-suprahyoid-muscle-complex
#6
Mohit Kothari, Peter William Stubbs, Asger Roer Pedersen, Jim Jensen, Jørgen Feldbaek Nielsen
BACKGROUND: Assessment of swallowing musculature using motor evoked potentials (MEPs) can be used to evaluate neural pathways. However, recording of the swallowing musculature is often invasive, uncomfortable and unrealistic in normal clinical practise. OBJECTIVE: To investigate the possibility of using the suprahyoid muscle complex (SMC) using surface electromyography (sEMG) to assess changes to neural pathways by determining the reliability of measurements in healthy participants over days...
June 23, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28644193/heel-raised-foot-posture-do-not-affect-trunk-and-lower-extremity-biomechanics-during-a-barbell-back-squat-in-recreational-weightlifters
#7
Szu-Ping Lee, Carrie Gillis, Javier J Ibarra, Derek Oldroyd, Ryan Zane
It is claimed that weightlifting shoes with a raised heel may lead to a more upright trunk posture, and thus reduce the risk of back injuries during a barbell back squat. These proclaimed biomechanical effects have not been thoroughly investigated. The purpose of this study was to compare trunk and lower extremity biomechanics during barbell back squats in 3 foot postures.14 recreational weightlifters (7 male and 7 female) between the ages of 18-50 performed barbell back squats in 3 conditions (barefoot on a flat surface, barefoot on a heel-raised platform, and wearing heel-raised weightlifting shoes) at 80% of their 1-RM...
June 19, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28643919/mechanobehaviour-in-dolichofacial-and-brachyfacial-adolescents
#8
J C Nickel, A L Weber, P Covington Riddle, Y Liu, H Liu, L R Iwasaki
OBJECTIVES: To test whether mechanobehaviour (temporomandibular joint (TMJ) loads, jaw muscle use) was different between facial types and correlated with ramus height (Condylion-Gonion, mm). SETTING AND SAMPLE POPULATION: University of Missouri-Kansas City (UMKC) Orthodontic Clinic. Ten dolichofacial and ten brachyfacial adolescents (Sella-Nasion-Gonion-Gnathion (SN-GoGn) angles ≥37° and ≤27°, respectively) consented to participate. MATERIALS AND METHODS: Numerical models calculated TMJ loads for a range of static biting based on subjects' three-dimensional anatomy...
June 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28643899/lack-of-adaptation-during-prolonged-split-belt-locomotion-in-the-intact-and-spinal-cat
#9
Victoria Kuczynski, Alessandro Telonio, Yann Thibaudier, Marie-France Hurteau, Charline Dambreville, Etienne Desrochers, Adam Doelman, Tayler Ross, Alain Frigon
In humans, gait adapts to prolonged walking on a split-belt treadmill, where one leg steps faster than the other, by gradually restoring the symmetry of interlimb kinematic variables, such as double support periods and step lengths, and by reducing muscle activity (EMG, electromyography). The adaptation is also characterized by reversing the asymmetry of interlimb variables observed during the early split-belt period when returning to tied-belt locomotion, termed an after-effect. To determine if cats adapt to prolonged split-belt locomotion and to assess if spinal locomotor circuits participate in the adaptation, we measured interlimb variables and EMG in intact and spinal-transected cats before, during and after 10 min of split-belt locomotion...
June 23, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28643050/application-of-transoral-continuous-intraoperative-neuromonitoring-in-natural-orifice-transluminal-endoscopic-surgery-for-thyroid-disease-a-preliminary-study
#10
Han-Kun Chen, Chun-Liang Chen, Kuo-Shan Wen, Yi-Feng Lin, Kai-Yuan Lin, Yih-Huei Uen
BACKGROUND: The novel concept of continuous intraoperative neuromonitoring (Cont-IONM) through stimulation of the vagal nerve has been used in thyroidectomies to prevent imminent injury of the recurrent laryngeal nerve (RLN). This article reports on this technology and the results of using transoral Cont-IONM in natural orifice transluminal endoscopic surgery for thyroid disease. METHODS: Cont-IONM of the RLN was achieved through automatic cyclical stimulation of the vagal nerve using a C2 monitor and delta stimulating electrode...
June 22, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28641171/electromyographic-analysis-of-rotator-cuff-muscles-in-patients-with-rotator-cuff-tendinopathy-a-systematic-review
#11
REVIEW
Fábio Carlos Lucas de Oliveira, Laurent Julien Bouyer, Amanda L Ager, Jean-Sébastien Roy
The shoulder is inherently an unstable joint which heavily relies on the neuromuscular activation of the rotator cuff (RC) complex for stability during movement. Currently, there is no consensus regarding how the activity of RC muscles is affected among individuals with a RC tendinopathy (RCTe). This study reviewed the evidence of studies comparing the electromyographic (EMG) activity of any RC muscle of shoulders with a symptomatic RCTe to asymptomatic shoulders. Eight databases were searched. Data from 343 participants (201 symptomatic and 209 asymptomatic shoulders) were analyzed from 10 out of 402 included studies...
August 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28640896/beneficial-effects-of-a-gait-used-while-wearing-a-kimono-to-decrease-the-knee-adduction-moment-in-healthy-adults
#12
Susumu Ota, Yukari Ogawa, Hiroki Ota, Tomoya Fujiwara, Tadashi Sugiyama, Akira Ochi
The knee adduction moment (KAM) relates to medial knee osteoarthritis (OA). Several gait modifications to reduce the KAM for the prevention of knee OA have been studied. Most of the modifications, however, involve voluntary changes in leg alignment. Here we investigated the biomechanical effects for reducing the KAM of a walking style with a small trunk rotation and arm swing gait, which is a natural walking style used while wearing a kimono (Nanba walk) that shifts the ground reaction force toward the stance leg (reduced lever arm)...
2017: PloS One
https://www.readbyqxmd.com/read/28640883/an-artificial-emg-generation-model-based-on-signal-dependent-noise-and-related-application-to-motion-classification
#13
Akira Furui, Hideaki Hayashi, Go Nakamura, Takaaki Chin, Toshio Tsuji
This paper proposes an artificial electromyogram (EMG) signal generation model based on signal-dependent noise, which has been ignored in existing methods, by introducing the stochastic construction of the EMG signals. In the proposed model, an EMG signal variance value is first generated from a probability distribution with a shape determined by a commanded muscle force and signal-dependent noise. Artificial EMG signals are then generated from the associated Gaussian distribution with a zero mean and the generated variance...
2017: PloS One
https://www.readbyqxmd.com/read/28639056/relevance-of-the-clinical-and-psychophysiological-variables-in-the-dyssynergic-defecation-a-comparative-study-in-elderly-subjects
#14
Miguel A Simón, Ana M Bueno
The relevance of several clinical and psychophysiological variables in the dyssynergic defecation in elderly subjects was investigated in this study. To accomplish this, 30 elderly subjects (10 without anorectal disorders, 10 with chronic constipation and 10 with dyssynergic defecation) were repeatedly assessed once per week for 4 weeks, with the following measures being collected at each session: EMG-activity (µV) of the external anal sphincter (at rest, during squeezing, and during straining to defecate), stool frequency, difficulty defecation level, pain grade during defecation, and satisfaction level after evacuation...
June 21, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/28637983/repeatability-of-measurements-of-surface-electromyographic-variables-during-maximum-voluntary-contraction-of-temporalis-and-masseter-muscles-in-normal-adults
#15
Yeong-Gwan Im, Sang-Ho Han, Ji-Il Park, Hae-Soon Lim, Byung-Gook Kim, Jae-Hyung Kim
This study evaluated the intraexaminer repeatability of measurements of surface electromyography (EMG) variables and functional indices of the myoelectric signals from the masseter and temporalis muscles bilaterally in 15 healthy men. The test was repeated on two different days without templates. The resting muscle activity was recorded once, and two kinds of maximum voluntary contraction (MVC) tasks were performed and recorded three times. The two MVC tasks involved clenching the teeth and biting down on two cotton rolls bilaterally with the posterior teeth...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28637786/the-role-of-capsaicin-sensitive-c-fiber-afferent-pathways-in-the-control-of-micturition-in-spinal-intact-and-spinal-cord-injured-mice
#16
Katsumi Kadekawa, Tsuyoshi Majima, Takahiro Shimizu, Naoki Wada, William C de Groat, Anthony J Kanai, Momokazu Goto, Mitsuharu Yoshiyama, Kimio Sugaya, Naoki Yoshimura
We examined bladder and urethral sphincter activity in mice with or without spinal cord injury (SCI) after C-fiber afferent desensitization induced by capsaicin pretreatment and changes in electrophysiological properties of mouse bladder afferent neurons 4 weeks after SCI. Female C57BL/6N mice were divided into 4 groups; (1) spinal intact (SI)-control, (2) SI-capsaicin pretreatment (Cap), (3) SCI-control and (4) SCI-Cap groups. Continuous cystometry and external urethral sphincter (EUS)-electromyogram (EMG) were conducted under an awake condition...
June 21, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28634449/electromyography-data-processing-impacts-muscle-synergies-during-gait-for-unimpaired-children-and-children-with-cerebral-palsy
#17
Benjamin R Shuman, Michael H Schwartz, Katherine M Steele
Muscle synergies calculated from electromyography (EMG) data identify weighted groups of muscles activated together during functional tasks. Research has shown that fewer synergies are required to describe EMG data of individuals with neurologic impairments. When considering potential clinical applications of synergies, understanding how EMG data processing impacts results and clinical interpretation is important. The aim of this study was to evaluate how EMG signal processing impacts synergy outputs during gait...
2017: Frontiers in Computational Neuroscience
https://www.readbyqxmd.com/read/28632065/muscle-activation-sequencing-of-leg-muscles-during-linear-glide-shot-putting
#18
Róisín M Howard, Richard Conway, Andrew J Harrison
In the shot put, the athlete's muscles are responsible for generating the impulses to move the athlete and project the shot into the air. Information on phasic muscle activity is lacking for the glide shot put event and therefore important technical information for coaches is not currently available. This study provides an electromyography (EMG) analysis of the muscle activity of the legs during shot put. Fifteen right-handed Irish national level shot putters performed six maximum effort throws using the glide shot put technique...
March 1, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28632055/muscle-activity-in-sprinting-a-review
#19
Róisín M Howard, Richard Conway, Andrew J Harrison
The use of electromyography (EMG) is widely recognised as a valuable tool for enhancing the understanding of performance drivers and potential injury risk in sprinting. The timings of muscle activations relative to running gait cycle phases and the technology used to obtain muscle activation data during sprinting are of particular interest to scientists and coaches. This review examined the main muscles being analysed by surface EMG (sEMG), their activations and timing, and the technologies used to gather sEMG during sprinting...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28628750/ergonomic-benefits-from-a-laparoscopic-instrument-with-rotatable-handle-piece-depend-on-the-area-of-the-operating-field-and-working-height
#20
Benjamin Steinhilber, Florian Reiff, Robert Seibt, Monika A Rieger, Peter Martus, Bernhard Kraemer, Ralf Rothmund
Objective To evaluate the effect of a laparoscopic instrument with a 360° rotatable handle piece (rot-HP) on biomechanical stress and precision in different areas of a simulated operating field at two working heights. Background Surgeons performing laparoscopic procedures are exposed to biomechanical stress and have an increased risk of musculoskeletal complaints. Method Fifty-seven healthy subjects (27 men, median age 26) without experience in laparoscopy performed a precision task in four quadrants (A-D) of the operating field using the rot-HP or a common fixed handle piece (fixed-HP) at an individually adjusted lower or higher working height...
June 1, 2017: Human Factors
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