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Tensiomyography

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https://www.readbyqxmd.com/read/28944649/neuromuscular-responses-and-physiological-patterns-during-a-soccer-simulation-protocol-artificial-turf-versus-natural-grass
#1
Jorge López-Fernández, Jorge García-Unanue, Javier Sánchez-Sánchez, Manuel León, Enrique Hernando, Leonor Gallardo
BACKGROUND: Latest studies suggest similar performance of soccer players either on artificial turf (AT) or natural grass (NG). However, it is not clear if their muscular and physiological responses are also similar on both surfaces. This research aims to assess the influence of game surface on physiological patterns and neuromuscular responses of soccer players during a soccer simulation protocol (SSP) that incorporates repeated sprints and nonlinear actions at maximum speed. METHODS: Sixteen amateur soccer players completed three bouts of the SSP on both AT and NG...
September 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28930871/reliability-and-measurement-error-of-tensiomyography-to-assess-mechanical-muscle-function-a-systematic-review
#2
Saúl Martín-Rodríguez, Irineu Loturco, Angus M Hunter, David Rodríguez-Ruiz, Diego Munguia-Izquierdo
Interest in studying mechanical skeletal muscle function through tensiomyography (TMG) has increased in recent years. This systematic review aimed to (a) report the reliability and measurement error of all TMG parameters [i.e., maximum radial displacement of the muscle belly (Dm), contraction time (Tc), delay time (Td), half-relaxation time (½ Tr), and sustained contraction time (Ts)] and (b) to provide critical reflection on how to perform accurate and appropriate measurements for informing clinicians, exercise professionals, and researchers...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28832392/ischemic-preconditioning-blunts-muscle-damage-responses-induced-by-eccentric-exercise
#3
Alexander Franz, Michael Behringer, Jan-Frieder Harmsen, Constantin Mayer, Rüdiger Krauspe, Christoph Zilkens, Moritz Schumann
PURPOSE: Ischemic preconditioning (IPC) is known to reduce muscle damage induced by ischemia and reperfusion-injury (I/R-Injury) during surgery. Due to similarities between the pathophysiological formation of I/R-injury and eccentric exercise-induced muscle damage (EIMD), as characterized by an intracellular accumulation of Ca, an increased production of reactive oxygen species and increased pro-inflammatory signaling, the purpose of the present study was to investigate whether IPC performed prior to eccentric exercise may also protect against EIMD...
August 22, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28828075/baseline-mechanical-and-neuromuscular-profile-of-knee-extensor-and-flexor-muscles-in-professional-soccer-players-at-the-start-of-the-pre-season
#4
Oscar García-García, Virginia Serrano-Gómez, Antonio Hernández-Mendo, Verónica Morales-Sánchez
The aim of the study was to determine the mechanical and neuromuscular profile of knee extensor and flexor muscles in professional soccer players at the start of the pre-season, and to calculate percentages for symmetry, as well as examine differences according to the player's positional role. The vastus medialis (VM), vastus lateralis (VL), rectus femoris (RF) and biceps femoris (BF) of 16 professional soccer players were evaluated by means of tensiomyography (TMG) on the first day of the pre-season. A paired-samples t test (p < ...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28732494/the-effects-of-therapeutic-hip-exercise-with-abdominal-core-activation-on-recruitment-of-the-hip-muscles
#5
Mandy Ky Chan, Ka Wai Chow, Alfred Ys Lai, Noble Kc Mak, Jason Ch Sze, Sharon Mh Tsang
BACKGROUND: Core stabilization has been utilized for rehabilitation and prevention of lower limb musculoskeletal injuries. Previous studies showed that activation of the abdominal core muscles enhanced the hip muscle activity in hip extension and abduction exercises. However, the lack of the direct measurement and quantification of the activation level of the abdominal core muscles during the execution of the hip exercises affect the level of evidence to substantiate the proposed application of core exercises to promote training and rehabilitation outcome of the hip region...
July 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28704886/tensiomyographic-assessment-of-muscle-contractile-properties-in-9-to-14-year-old-children
#6
Bostjan Simunic, Hans Degens, Jernej Zavrsnik, Katja Koren, Tadeja Volmut, Rado Pisot
While there are numerous data on the skeletal muscle fiber type composition in adults, little is known about the changes in fiber type composition and contractile properties during maturational growth in children. Using noninvasive tensiomyography, we measured contraction time (Tc), an indirect estimate of the myosin heavy chain I (MHC-I) proportion, to assess the longitudinal changes of the biceps brachii (BB), biceps femois (BF), vastus lateralis (VL), and erector spinae (ES) muscles in 53 boys and 54 girls...
September 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28670284/tensiomyographic-markers-are-not-sensitive-for-monitoring-muscle-fatigue-in-elite-youth-athletes-a-pilot-study
#7
Thimo Wiewelhove, Christian Raeder, Rauno Alvaro de Paula Simola, Christoph Schneider, Alexander Döweling, Alexander Ferrauti
Objective: Tensiomyography (TMG) is an indirect measure of a muscle's contractile properties and has the potential as a technique for detecting exercise-induced skeletal muscle fatigue. Therefore, the aim of this study was to assess the sensitivity of tensiomyographic markers to identify reduced muscular performance in elite youth athletes. Methods: Fourteen male junior tennis players (age: 14.9 ± 1.2 years) with an international (International Tennis Federation) ranking position participated in this pre-post single group trial...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28538312/skeletal-muscle-contraction-time-and-tone-decrease-after-8-weeks-of-plyometric-training
#8
Damir Zubac, Boštjan Šimunič
Zubac, D and Šimunič, B. Skeletal muscle contraction time and tone decrease after 8 weeks of plyometric training. J Strength Cond Res 31(6): 1610-1619, 2017-The aim of the study was to examine whether an improvement in jumping performance after 8 weeks of plyometric training (PT) runs in parallel with changes in lower-limb skeletal muscle contractile properties. Using noninvasive tensiomyography (TMG), we assessed contraction time (Tc) and the maximal amplitude of radial displacement (Dm) in 20 subjects (50% men; age 22...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28501988/gluteus-maximus-contraction-velocity-assessed-by-tensiomyography-improves-following-arthroscopic-treatment-of-femoroacetabular-impingement
#9
Roberto Seijas, Miguel Marín, Eila Rivera, Eduard Alentorn-Geli, David Barastegui, Pedro Álvarez-Díaz, Ramón Cugat
PURPOSE: Muscular impairment, particularly for the gluteus maximus (GM), has been observed in femoroacetabular impingement (FAI). The purpose of this study was to evaluate the tensiomyographic changes of the GM, rectus femoris (RF) and adductor longus (AL) before and after arthroscopic surgery for FAI. It was hypothesized that arthroscopic treatment of FAI would improve the preoperative muscular impairment. METHODS: All patients undergoing arthroscopic treatment of FAI between January and July 2015 were approached for eligibility...
May 13, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28272251/tensiomyography-sonoelastography-and-mechanosensitivity-differences-between-active-latent-and-control-low-back-myofascial-trigger-points-a-cross-sectional-study
#10
César Calvo-Lobo, Ignacio Diez-Vega, Beatriz Martínez-Pascual, Silvia Fernández-Martínez, Mónica de la Cueva-Reguera, Gerson Garrosa-Martín, David Rodríguez-Sanz
The myofascial pain syndrome (MPS) is considered the most common musculoskeletal condition. The lumbopelvic pain (LPP) is established as one of the most prevalent musculoskeletal disorders. Nevertheless, previous research has not yet studied the contractibility changes by tensiomyography between myofascial trigger point (MTrP) types and normal tissue. Therefore, the aim of this study was to determine the tensiomyography, sonoelastography, and pressure pain threshold (PPT) differences between the palpation area of active and latent MTrPs with regards to control points in the lumbar erector spinae muscles of subjects with LPP...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28255658/symmetry-tensiomyographic-neuromuscular-response-after-chronic-anterior-cruciate-ligament-acl-reconstruction
#11
Noriaki Maeda, Yukio Urabe, Syogo Tsutsumi, Hironori Fujishita, Shuhei Numano, Takuya Takeuchi, Kazuhiko Hirata, Yukio Mikami, Hiroaki Kimura
PURPOSE: Quadriceps muscle weakness is common following anterior cruciate ligament (ACL) reconstruction. Tensiomyography is a recent method to assess muscle strength, and one that also enables evaluation of individual muscles. The purpose of this study was to evaluate motor unit recruitment and investigate the effects on mechanical and contractile characteristics of the quadriceps and hamstring muscles after chronic ACL reconstruction. METHODS: This study recruited 20 participants: three males and seven females at 24 months after ACL reconstruction, and three males and seven females with no history of knee injury (control group)...
March 2, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27937967/tensiomyographical-responses-to-accelerometer-loads-in-female-collegiate-basketball-players
#12
Kyle D Peterson, Gabriela T Quiggle
The purpose of the present study was to characterise the relationship between relative versus absolute internal and external loads in collegiate basketball players throughout the course of a season. Five Division I basketball players wore triaxial accelerometers throughout the 2015-2016 season and were tensiomyographically assessed weekly. One-way repeated-measure analysis of variance (RM ANOVA) with least-significant-difference (LSD) pairwise comparisons was used to determine which absolute weekly loads were different across the season...
December 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27803627/muscle-contraction-velocity-a-suitable-approach-to-analyze-the-functional-adaptations-in-elite-soccer-players
#13
Irineu Loturco, Lucas A Pereira, Ronaldo Kobal, Katia Kitamura, Rodrigo Ramírez-Campillo, Vinicius Zanetti, Cesar C Cal Abad, Fabio Y Nakamura
Tensiomyography (TMG) has been used as a simple and non-invasive tool to assess the mechanical properties of skeletal muscles. The TMG-derived velocity of contraction (Vc), which can be calculated from the ratio between maximal radial displacement and the sum of contraction time and delay time, has been proposed for evaluating athletes. However, its sensitivity to training effects and possible relation with changes in soccer players' neuromuscular performance have not yet been addressed. To test this possibility, twenty-two male Brazilian elite soccer players were assessed using TMG-derived Vc, unloaded squat jump, countermovement jump and drop jump at 45 cm, loaded jump squat and linear (20 m) and change of direction (COD) sprint tests, prior to and after an 8-week period, between two consecutive official tournaments, during which the concurrency between endurance and strength-power training commonly impairs neuromuscular capacities...
September 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27757289/sixty-seconds-of-foam-rolling-does-not-affect-functional-flexibility-or-change-muscle-temperature-in-adolescent-athletes
#14
Andrew M Murray, Thomas W Jones, Cosmin Horobeanu, Anthony P Turner, John Sproule
BACKGROUND: Physiotherapists and other practitioners commonly prescribe foam rolling as an intervention, but the mechanistic effects of this intervention are not known. PURPOSE: The aim of this investigation was to establish if a single bout of foam rolling affects flexibility, skeletal muscle contractility and reflected temperature. METHODS: Twelve adolescent male squash players were evaluated on two separate occasions (treatment and control visits) and were tested on both legs for flexibility of the hip flexors and quadriceps, muscle contractility (as measured by tensiomyography) and temperature of the quadriceps (assessed via thermography) at repeated time points pre- and post a 60s rolling intervention (pre-, immediately post, 5, 10, 15, and 30 minutes post)...
October 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27362968/effects-of-dry-needling-dnhs-technique-on-the-contractile-properties-of-spastic-muscles-in-a-patient-with-stroke-a-case-report
#15
Sandra Calvo, Isabel Quintero, Pablo Herrero
Dry needling for hypertonia and spasticity (DNHS) is a technique used for decreasing hypertonia and spasticity and for the improvement of function in patients with damage to the central nervous system. There is limited evidence supporting the effectiveness of this technique on the basis of objective assessments. The aim of the present case report was to quantify the effects of dry needling (DNHS technique) on the contractile properties of spastic muscles in an individual with stroke. The DNHS technique was applied to a 50-year-old male 2...
December 2016: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/27360645/effects-of-a-cool-vest-jacket-on-skeletal-muscle-response-using-tensiomyography-1820-june-2-1-45-pm-2-00-pm
#16
Carles Lorente Gonzalez, Francisco Corbi Soler
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27317976/muscle-mechanical-properties-of-strength-and-endurance-athletes-and-changes-after-one-week-of-intensive-training
#17
Rauno Álvaro de Paula Simola, Christian Raeder, Thimo Wiewelhove, Michael Kellmann, Tim Meyer, Mark Pfeiffer, Alexander Ferrauti
The study investigates whether tensiomyography (TMG) is sensitive to differentiate between strength and endurance athletes, and to monitor fatigue after either one week of intensive strength (ST) or endurance (END) training. Fourteen strength (24.1±2.0years) and eleven endurance athletes (25.5±4.8years) performed an intensive training period of 6days of ST or END, respectively. ST and END groups completed specific performance tests as well as TMG measurements of maximal radial deformation of the muscle belly (Dm), deformation time between 10% and 90% Dm (Tc), rate of deformation development until 10% Dm (V10) and 90% Dm (V90) before (baseline), after training period (post1), and after 72h of recovery (post2)...
October 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27093538/assessment-of-fatigue-and-recovery-in-male-and-female-athletes-after-6-days-of-intensified-strength-training
#18
Christian Raeder, Thimo Wiewelhove, Rauno Álvaro De Paula Simola, Michael Kellmann, Tim Meyer, Mark Pfeiffer, Alexander Ferrauti
Raeder, C, Wiewelhove, T, Simola, RÁDP, Kellmann, M, Meyer, T, Pfeiffer, M, and Ferrauti, A. Assessment of fatigue and recovery in male and female athletes after 6 days of intensified strength training. J Strength Cond Res 30(12): 3412-3427, 2016-This study aimed to analyze changes of neuromuscular, physiological, and perceptual markers for routine assessment of fatigue and recovery in high-resistance strength training. Fourteen male and 9 female athletes participated in a 6-day intensified strength training microcycle (STM) designed to purposefully overreach...
December 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26914331/gluteus-maximus-impairment-in-femoroacetabular-impingement-a-tensiomyographic-evaluation-of-a-clinical-fact
#19
COMPARATIVE STUDY
Roberto Seijas, Eduard Alentorn-Geli, Pedro Álvarez-Díaz, Miguel Marín, Oscar Ares, Andrea Sallent, Xavier Cuscó, Ramón Cugat
INTRODUCTION: the aim of the present study is to evaluate the mechanical and contractile properties of the gluteus maximus (GM) muscle in patients with femoroacetabular impingement (FAI). Our hypothesis is that the clinical observation of GM pain would be evidenced by tensiomyographic impairment in muscle function. MATERIALS AND METHODS: A prospective, cross-sectional, intra-group comparative study was conducted to assess the neuromuscular changes of lower extremity muscles in patients with FAI...
June 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/26562625/assessment-of-muscle-contractile-properties-at-acute-moderate-altitude-through-tensiomyography
#20
Antonio J Morales-Artacho, Paulino Padial, Dario Rodríguez-Matoso, David Rodríguez-Ruiz, Amador García-Ramos, Juan Manuel García-Manso, Carmen Calderón, Belén Feriche
Under hypoxia, alterations in muscle contractile properties and faster fatigue development have been reported. This study investigated the efficacy of tensiomyography (TMG) in assessing muscle contractile function at acute moderate altitude. Biceps femoris (BF) and vastus lateralis (VL) muscles of 18 athletes (age 20.1 ± 6.1 years; body mass 65.4 ± 13.9 kg; height 174.6 ± 9.5 cm) were assessed at sea level and moderate altitude using electrically evoked contractions on two consecutive days...
December 2015: High Altitude Medicine & Biology
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