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Electromyography sport

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https://www.readbyqxmd.com/read/29761113/differences-in-hip-joint-biomechanics-and-muscle-activation-in-individuals-with-femoroacetabular-impingement-compared-with-healthy-asymptomatic-individuals-is-level-ground-gait-analysis-enough
#1
Derek J Rutherford, Janice Moreside, Ivan Wong
Background: Femoroacetabular impingement (FAI) is a recognized cause of hip and groin pain and a significant factor in hip joint function during sport. Objective tests for understanding hip function are lacking in this population. Purpose: To determine whether biomechanical and electromyographic features of hip function during level-ground walking differ between a group diagnosed with FAI and those with no symptoms of FAI. Study Design: Controlled laboratory study...
May 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29736693/feasibility-testing-of-hydrophobic-carbon-electrodes-for-acquisition-of-underwater-surface-electromyography-data
#2
Hugo Posada-Quintero, Yeonsik Noh, Caitlin Eaton-Robb, John P Florian, Ki H Chon
Underwater surface electromyography (sEMG) signals are especially of interest for rehabilitation and sports medicine applications. Silver/silver chloride (Ag/AgCl) hydrogel electrodes, although the gold standard for sEMG data collection, require waterproofing for underwater applications. Having to apply waterproof tape over electrodes impedes the deployment of sEMG in immersed conditions. As a better alternative for underwater applications, we have developed carbon black/polydimethylsiloxane (CB/PDMS) electrodes for collecting sEMG signals under water...
May 7, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29700560/greater-fear-of-reinjury-is-related-to-stiffened-jump-landing-biomechanics-and-muscle-activation-in-women-after-acl-reconstruction
#3
Stephanie M Trigsted, Dane B Cook, Kristen A Pickett, Lisa Cadmus-Bertram, Warren R Dunn, David R Bell
PURPOSE: Fear of reinjury is an important factor in determining who returns to sport following anterior cruciate ligament reconstruction (ACLR). Evidence from other musculoskeletal injuries indicates fear of reinjury may be related to stiffened movement patterns observed in individuals following ACLR. The relationship between fear of reinjury and performance on dynamic tasks, however, has not been investigated. Therefore, the purpose of this study was to investigate the relationship between fear of reinjury and jump-landing biomechanics...
April 26, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29685059/hamstring-muscle-use-in-females-during-hip-extension-and-the-nordic-hamstring-exercise-an-fmri-study
#4
Daniel J Messer, Matthew N Bourne, Morgan D Williams, Aiman Al Najjar, Anthony J Shield
Study Design Cross-sectional study. Background Understanding hamstring muscle activation patterns in resistance training exercises may have implications for the design of strength training and injury prevention programs. Unfortunately, surface electromyography studies have reported conflicting results with regard to hamstring muscle activation patterns in women. Objectives To determine the spatial patterns of hamstring muscle activity during the 45º hip-extension and Nordic hamstring exercises, in females using functional magnetic resonance imaging...
April 23, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29629614/physical-impairments-in-adults-with-ankle-osteoarthritis-a-systematic-review-and-meta-analysis
#5
Munira Mohammed Al-Mahrouqi, David Allan MacDonald, Bill Vicenzino, Michelle Dawn Smith
Study Design Systematic review with meta-analysis. Background Lower limb osteoarthritis (OA) is associated with pain and reduced function. Most research focusses on hip and knee OA related impairments and as consequence impairments that characterise ankle OA are not well understood. Objective To systematically review available evidence of physical impairments in individuals with ankle OA. Methods A comprehensive search of electronic databases was conducted up until July 2017. Studies were screened using pre-defined inclusion/exclusion criteria...
April 7, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29623751/scapular-muscle-activity-during-static-yoga-postures
#6
Jaclyn N Chopp-Hurley, Courtney Prophet, Brynn Thistle, Jessica Pollice, Monica R Maly
Study Design Controlled laboratory study; cross-sectional. Background Despite the growing popularity of yoga, little is known about the muscle activity of the scapular stabilizers during isometric yoga postures and their potential utility in shoulder rehabilitation. Objectives To examine scapular stabilizer muscle activation during various yoga postures. Methods Twenty women with yoga experience and no shoulder pain or injury participated. Electromyography was used to record upper, middle and lower trapezius as well as serratus ante-rior muscle activity during 15 yoga postures...
April 6, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29616887/upper-limb-muscle-activation-during-sports-video-gaming-of-persons-with-spinal-cord-injury
#7
Jeffrey P Jaramillo, M Elise Johanson, B Jenny Kiratli
OBJECTIVE: Video gaming as a therapeutic tool has largely been studied within the stroke population with some benefits reported in upper limb motor performance, balance, coordination, and cardiovascular status. To date, muscle activation of upper limb muscles in persons with spinal cord injuries (SCI) has not been studied during video game play. In this paper, we provide descriptive and comparative data for muscle activation and strength during gaming for players with tetraplegia and paraplegia, as well as, compare these results with data from traditional arm exercises (ie, biceps curl and shoulder press) with light weights which are commonly prescribed for a home program...
April 4, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29597146/electromyography-comparison-of-the-effects-of-various-footwear-in-the-activity-patterns-of-the-peroneus-longus-and-brevis-muscles
#8
Andrea Roca-Dols, Marta Elena Losa-Iglesias, Rubén Sánchez-Gómez, Daniel López-López, Ricardo Becerro-de-Bengoa-Vallejo, César Calvo-Lobo
BACKGROUND: Peroneus longus and brevis (PLB) disorders are commonly in people with lateral ligamentous instability, ankle pain, lateral hindfoot pain and structures of the proximal compartment of the lower legs and their muscle activity is believed to be influenced by different footwear types. The proposal of this research is to evaluate the effects of five types of footwear with respect to the barefoot condition and analyze the activity patterns of PLB muscles in healthy subjects during the gait cycle...
March 13, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29575090/gait-mechanics-and-tibiofemoral-loading-in-men-of-the-acl-sports-randomized-control-trial
#9
Jacob J Capin, Ashutosh Khandha, Ryan Zarzycki, Amelia J H Arundale, Melissa L Ziegler, Kurt Manal, Thomas S Buchanan, Lynn Snyder-Mackler
The risk for post-traumatic osteoarthritis is elevated after anterior cruciate ligament reconstruction (ACLR), and may be especially high among individuals with aberrant walking mechanics, such as medial tibiofemoral joint underloading 6 months postoperatively. Rehabilitation training programs have been proposed as one strategy to address aberrant gait mechanics. We developed the anterior cruciate ligament specialized post-operative return-to-sports (ACL-SPORTS) randomized control trial to test the effect of 10 post-operative training sessions consisting of strength, agility, plyometric, and secondary prevention exercises (SAPP) or SAPP plus perturbation (SAPP + PERT) training on gait mechanics after ACLR...
March 25, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29501216/arthroscopic-management-of-slap-lesions-with-concomitant-spinoglenoid-notch-ganglion-cysts-a-systematic-review-comparing-repair-alone-to-repair-with-decompression
#10
REVIEW
Amanda J Schroeder, Yehia H Bedeir, Adam P Schumaier, Vishal S Desai, Brian M Grawe
PURPOSE: To determine if cyst management is necessary in the setting of SLAP lesions with concomitant paralabral ganglion cysts. METHODS: We performed a systematic review according to Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines, including all studies that met inclusion criteria from January 1975 to July 2015. We included patients with a SLAP II-VII lesion and a concomitant paralabral ganglion cyst who underwent arthroscopic labral repair with or without cyst decompression...
February 28, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29499471/effect-of-wobble-board-training-on-movement-strategies-to-maintain-equilibrium-on-unstable-surfaces
#11
Priscila de Brito Silva, Natalie Mrachacz-Kersting, Anderson Souza Oliveira, Uwe Gustav Kersting
Standing on unstable surfaces requires more complex motor control mechanisms to sustain balance when compared to firm surfaces. Surface instability enhances the demand to maintain equilibrium and is often used to challenge balance, but little is known about how balance training affects movement strategies to control posture while standing on unstable surfaces. This study aimed at assessing the effects of isolated wobble board (WB) training on movement strategies to maintain balance during single-leg standing on a WB...
April 2018: Human Movement Science
https://www.readbyqxmd.com/read/29377797/an-embedded-eight-channel-noise-canceling-wireless-wearable-semg-data-acquisition-system-with-adaptive-muscle-contraction-detection
#12
Mert Ergeneci, Kaan Gokcesu, Erhan Ertan, Panagiotis Kosmas
Wearable technology has gained increasing popularity in the applications of healthcare, sports science, and biomedical engineering in recent years. Because of its convenient nature, the wearable technology is particularly useful in the acquisition of the physiological signals. Specifically, the (surface electromyography) sEMG systems, which measure the muscle activation potentials, greatly benefit from this technology in both clinical and industrial applications. However, the current wearable sEMG systems have several drawbacks including inefficient noise cancellation, insufficient measurement quality, and difficult integration to customized applications...
February 2018: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/29372027/lumbar-burner-and-stinger-syndrome-in-an-elderly-athlete
#13
Veronika Wegener, Axel Stäbler, Volkmar Jansson, Christof Birkenmaier, Bernd Wegener
Burner or stinger syndrome is a rare sports injury caused by direct or indirect trauma during high-speed or contact sports mainly in young athletes. It affects peripheral nerves, plexus trunks or spinal nerve roots, causing paralysis, paresthesia and pain. We report the case of a 57-year-old male athlete suffering from burner syndrome related to a lumbar nerve root. He presented with prolonged pain and partial paralysis of the right leg after a skewed landing during the long jump. He was initially misdiagnosed since the first magnet resonance imaging was normal whereas electromyography showed denervation...
January 2018: Korean Journal of Pain
https://www.readbyqxmd.com/read/29364062/water-filled-training-tubes-increase-core-muscle-activation-and-somatosensory-control-of-balance-during-squat
#14
Massimiliano Ditroilo, Rory O'Sullivan, Brian Harnan, Aislinn Crossey, Beth Gillmor, William Dardis, Adam Grainger
This study examined trunk muscle activation, balance and proprioception while squatting with a water-filled training tube (WT) and a traditional barbell (BB), with either closed (CE) or open eyes (OE). Eighteen male elite Gaelic footballers performed an isometric squat under the following conditions: BB-OE, BB-CE, WT-OE and WT-CE. The activity of rectus abdominis (RA), external oblique (EO) and multifidus (MF) was measured using electromyography, along with sway of the centre of pressure (CoP) using a force platform...
January 24, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29249346/surface-electromyography-based-muscle-fatigue-detection-using-high-resolution-time-frequency-methods-and-machine-learning-algorithms
#15
P A Karthick, Diptasree Maitra Ghosh, S Ramakrishnan
BACKGROUND AND OBJECTIVE: Surface electromyography (sEMG) based muscle fatigue research is widely preferred in sports science and occupational/rehabilitation studies due to its noninvasiveness. However, these signals are complex, multicomponent and highly nonstationary with large inter-subject variations, particularly during dynamic contractions. Hence, time-frequency based machine learning methodologies can improve the design of automated system for these signals. METHODS: In this work, the analysis based on high-resolution time-frequency methods, namely, Stockwell transform (S-transform), B-distribution (BD) and extended modified B-distribution (EMBD) are proposed to differentiate the dynamic muscle nonfatigue and fatigue conditions...
February 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29193314/effects-of-wobble-board-training-on-single-leg-landing-neuromechanics
#16
P B Silva, A S Oliveira, N Mrachacz-Kersting, U G Kersting
Balance training programs have been shown to reduce ankle sprain injuries in sports, but little is known about the transfer from this training modality to motor coordination and ankle joint biomechanics in sport-specific movements. This study aimed to investigate the effects of wobble board training on motor coordination and ankle mechanics during early single-leg landing from a lateral jump. Twenty-two healthy men were randomly assigned to either a control or a training group, who engaged in 4 weeks of wobble board training...
March 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29060643/analysis-of-one-repetition-during-biceps-curl-exercise-among-age-matched-adult-volunteers-using-endurance-curl-speed-and-surface-electromyography-signals
#17
Kiran Marri, Diptasree Maitra Ghosh, Ramakrishnan Swaminathan
Exercises under isometric and dynamic contractions are influenced by the rate coding and recruitment strategies. The study of muscle strength under dynamic contraction is normally performed using one-repetition maximum (1-RM) method. There are several variants of deriving one repetition method using number of repetitions and load that are useful in physical fitness and clinical rehabilitation program. However, the factors of dynamic contractions such as endurance time, speed of muscle contractions and muscle activity are not considered in 1-RM methods...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29058537/the-influence-of-an-acute-bout-of-whole-body-vibration-on-human-postural-control-responses
#18
Samuel J Wilson, Charles C Williams, Jacob R Gdovin, John D Eason, Lauren A Luginsland, Christopher M Hill, Harish Chander, Chip Wade, John C Garner
The use of vibrating platforms has become increasingly available, and popular at sports and rehabilitation institutes. Given the discrepancies in the literature regarding whole body vibration (WBV) and human reflexive responses, the purpose of this study was to examine the acute effects of WBV on postural response latencies, as well as associated electromyography measures of the lower extremities during balance perturbations. Reflexive responses during backward and forward balance perturbations were examined before, after, and 10 min after a bout of WBV...
October 23, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28944715/balance-training-enhances-motor-coordination-during-a-perturbed-sidestep-cutting-task
#19
RANDOMIZED CONTROLLED TRIAL
Anderson Souza Oliveira, Priscila Brito Silva, Morten Enemark Lund, Dario Farina, Uwe Gustav Kersting
Study Design Controlled laboratory study. Background Balance training may improve motor coordination. However, little is known about the changes in motor coordination during unexpected perturbations to postural control following balance training. Objectives To study the effects of balance training on motor coordination and knee mechanics during perturbed sidestep cutting maneuvers in healthy adults. Methods Twenty-six healthy men were randomly assigned to a training group or a control group. Before balance training, subjects performed unperturbed, 90° sidestep cutting maneuvers and 1 unexpected perturbed cut (10-cm translation of a movable platform)...
November 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28915093/sport-skill-specific-expertise-biases-sensory-integration-for-spatial-referencing-and-postural-control
#20
Michalis Thalassinos, Giorgos Fotiadis, Fotini Arabatzi, Brice Isableu, Vassilia Hatzitaki
The authors asked how sport expertise modulates visual field dependence and sensory reweighting for controlling posture. Experienced soccer athletes, ballet dancers, and nonathletes performed (a) a Rod and Frame test and (b) a 100-s bipedal stance task during which vision and proprioception were successively or concurrently disrupted in 20-s blocks. Postural adaptation was assessed in the mean center of pressure displacement, root mean square of center of pressure velocity and ankle muscles integrated electromyography activity...
September 15, 2017: Journal of Motor Behavior
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