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https://www.readbyqxmd.com/read/29666879/-muscle-injuries-in-professional-football-treatment-and-rehabilitation
#1
REVIEW
H Riepenhof, R Del Vescovo, J-N Droste, S McAleer, A Pietsch
BACKGROUND: Muscle injuries are common in professional sports, especially in football. Recent epidemiological studies showed that muscle injuries account for more than 30% of professional football injuries (1.8-2.2/1000 h exposure); however, even though there are significant differences within a European comparison, a single professional football team diagnosed on average 12 muscle injuries per season, corresponding to more than 300 availability days lost. OBJECTIVE: The aim of this work is to present the diagnosis, general treatment and comprehensive management of muscle injuries in professional football...
April 17, 2018: Der Unfallchirurg
https://www.readbyqxmd.com/read/29665848/characterization-and-utilization-of-the-flexor-digitorum-brevis-for-assessing-skeletal-muscle-function
#2
Michael D Tarpey, Adam J Amorese, Nicholas P Balestrieri, Terence E Ryan, Cameron A Schmidt, Joseph M McClung, Espen E Spangenburg
BACKGROUND: The ability to assess skeletal muscle function and delineate regulatory mechanisms is essential to uncovering therapeutic approaches that preserve functional independence in a disease state. Skeletal muscle provides distinct experimental challenges due to inherent differences across muscle groups, including fiber type and size that may limit experimental approaches. The flexor digitorum brevis (FDB) possesses numerous properties that offer the investigator a high degree of experimental flexibility to address specific hypotheses...
April 17, 2018: Skeletal Muscle
https://www.readbyqxmd.com/read/29662788/skeletal-muscle-regeneration-is-modulated-by-inflammation
#3
REVIEW
Wenjun Yang, Ping Hu
Skeletal muscle regeneration is a complex process orchestrated by multiple steps. Recent findings indicate that inflammatory responses could play central roles in bridging initial muscle injury responses and timely muscle injury reparation. The various types of immune cells and cytokines have crucial roles in muscle regeneration process. In this review, we briefly summarise the functions of acute inflammation in muscle regeneration. The translational potential of this article: Immune system is closely relevant to the muscle regeneration...
April 2018: Journal of Orthopaedic Translation
https://www.readbyqxmd.com/read/29662554/effect-of-%C3%AE-hydroxy-%C3%AE-methylbutyrate-on-mirna-expression-in-differentiating-equine-satellite-cells-exposed-to-hydrogen-peroxide
#4
Karolina A Chodkowska, Anna Ciecierska, Kinga Majchrzak, Piotr Ostaszewski, Tomasz Sadkowski
Background: Skeletal muscle injury activates satellite cells to initiate processes of proliferation, differentiation, and hypertrophy in order to regenerate muscle fibers. The number of microRNAs and their target genes are engaged in satellite cell activation. β-Hydroxy-β-methylbutyrate (HMB) is known to prevent exercise-induced muscle damage. The purpose of this study was to evaluate the effect of HMB on miRNA and relevant target gene expression in differentiating equine satellite cells exposed to H2 O2 ...
2018: Genes & Nutrition
https://www.readbyqxmd.com/read/29651514/perspectives-in-football-medicine
#5
REVIEW
M Waldén, M Hägglund, H Bengtsson, J Ekstrand
The high injury rate among men's professional football players is well-known. Therefore, the Union of European Football Associations (UEFA) launched an injury study already in 2001. This study, the UEFA Elite Club Injury Study (ECIS), currently includes data from a total of 51 clubs from 18 European countries with more than 14,000 registered injuries. With the 21st  World Cup (WC) in Russia just around the corner, we have from our study identified a higher match injury rate and a higher proportion of severe injuries in the European Championships compared to the preceding club competitive seasons...
April 12, 2018: Der Unfallchirurg
https://www.readbyqxmd.com/read/29649092/ascorbic-acid-attenuates-multifidus-muscles-injury-and-atrophy-after-posterior-lumbar-spine-surgery-by-suppressing-inflammation-and-oxidative-stress-in-a-rat-model
#6
Pan Tang, Yu Gu, Jia-Ming Gu, Zi-Ang Xie, Jia-Qi Xu, Xiang-De Zhao, Kang-Mao Huang, Ji-Ying Wang, Xue-Sheng Jiang, Shun-Wu Fan, Zhi-Jun Hu
STUDY DESIGN: A rat model of multifidus muscles injury and atrophy after posterior lumbar spine surgery. OBJECTIVE: We determined the effect of ascorbic acid (AA) on the postoperative multifidus muscles in rat model. SUMMARY OF BACKGROUND DATA: Previous studies show oxidative stress and inflammation are two main molecular mechanisms in multifidus muscle injury and atrophy after posterior lumbar surgery. AA may have a protective effect in postoperative multifidus muscles...
April 11, 2018: Spine
https://www.readbyqxmd.com/read/29649068/is-exercise-the-right-medicine-for-dystrophic-muscle
#7
Hannah R Spaulding, Joshua T Selsby
INTRODUCTION: Duchenne muscular dystrophy (DMD) is a neuromuscular disease caused by a dystrophin protein deficiency. Dystrophin functions to stabilize and protect the muscle fiber during muscle contraction, thus the absence of functional dystrophin protein leads to muscle injury. DMD patients experience progressive muscle necrosis, loss of function, and ultimately succumb to respiratory failure or cardiomyopathy. Exercise is known to improve muscle health and strength in healthy individuals as well as positively impact other systems...
April 11, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29625618/exposure-to-radial-extracorporeal-shock-waves-modulates-viability-and-gene-expression-of-human-skeletal-muscle-cells-a-controlled-in-vitro-study
#8
Stefan G Mattyasovszky, Eva K Langendorf, Ulrike Ritz, Christoph Schmitz, Irene Schmidtmann, Tobias E Nowak, Daniel Wagner, Alexander Hofmann, Pol M Rommens, Philipp Drees
BACKGROUND: Recent clinical and animal studies have shown that extracorporeal shock wave therapy has a promoting influence on the healing process of musculoskeletal disorders. However, the underlying biological effects of extracorporeal shock wave therapy on human skeletal muscle cells have not yet been investigated. METHODS: In this study, we investigated human skeletal muscle cells after exposure to radial extracorporeal shock waves in a standardized in vitro setup...
April 6, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29621015/hamstring-muscle-injury-prediction-by-isokinetic-ratios-depends-on-the-method-used
#9
Marc Dauty, Pierre Menu, Alban Fouasson-Chailloux
OBJECTIVES: Hamstring muscle injury prediction by isokinetic strength ratios is low but could result from the method-depending either on the use of the limbs or of the sportsmen as references. We aimed to establish a predictive model including unilateral and bilateral ratios calculated from the dominant, nondominant, right, and left limb in injured and uninjured professional soccer players. DESIGN: Cohort study. SETTING: Soccer team of the French Professional Premier League...
April 4, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29617946/long-term-selection-of-chickens-for-body-weight-alters-muscle-satellite-cell-behaviors
#10
A E Geiger, M R Daughtry, C M Gow, P B Siegel, H Shi, D E Gerrard
Muscle satellite cells (SC) are resident stem-like cells that play an integral role in skeletal muscle growth and repair. Understanding how SC maintain their identities and dynamic properties is critical to animal growth. However, the genetic and environmental factors governing SC behaviors and the underpinning mechanisms remain unknown. To explore whether genetic selection influences SC behaviors, we used 2 lines of chickens selected for over 50 generations with over a 10-fold difference in body weight at 56 d of age-the Virginia high weight selection (HWS) and low weight selection (LWS) lines...
April 3, 2018: Poultry Science
https://www.readbyqxmd.com/read/29615933/dexamethasone-protects-against-tourniquet-induced-acute-ischemia-reperfusion-injury-in-mouse-hindlimb
#11
Ryan M Corrick, Huiyin Tu, Dongze Zhang, Aaron N Barksdale, Robert L Muelleman, Michael C Wadman, Yu-Long Li
Extremity injuries with hemorrhage have been a significant cause of death in civilian medicine and on the battlefield. The use of a tourniquet as an intervention is necessary for treatment to an injured limb; however, the tourniquet and subsequent release results in serious acute ischemia-reperfusion (IR) injury in the skeletal muscle and neuromuscular junction (NMJ). Much evidence demonstrates that inflammation is an important factor to cause acute IR injury. To find effective therapeutic interventions for tourniquet-induced acute IR injuries, our current study investigated effect of dexamethasone, an anti-inflammatory drug, on tourniquet-induced acute IR injury in mouse hindlimb...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29609262/-multiple-factors-analysis-of-early-postpartum-pelvic-floor-muscles-injury-in-regenerated-parturients
#12
M Li, J Shi, Q P Lü, F H Wei, T Z Gai, Q Feng
Objective: To investigate the risk factors for multiparous pelvic floor muscles injury during 6-8 weeks after delivery. Method: From June 2015 to April 2017, 1917 women (1 523 primigravidas and 294 multiparas) were accepted postpartum pelvic floor function screening during 6-8 weeks after delivery in Beijing Hospital.Pelvic examination and pelvic floor muscle strength testing were carried out in these women.All the data were analyzed with multivariate logistic regression method to explore the related factors for postpartum pelvic floor muscle injury...
March 20, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29603757/extracellular-matrix-scaffolds-for-treatment-of-large-volume-muscle-injuries-a-review
#13
REVIEW
Tiffany L Sarrafian, Sue C Bodine, Brian Murphy, J Kevin Grayson, Susan M Stover
OBJECTIVE: Large muscular or musculotendinous defects present a dilemma because of the inadequacies of current treatment strategies. Extracellular matrices (ECM) are potential clinically applicable regenerative biomaterials. This review summarizes information from the preclinical literature evaluating the use of ECM for muscle regeneration in animal models of volumetric muscle loss (VML). STUDY DESIGN: Literature review. SAMPLE POPULATION: Animal models of VML in which surgical repair was performed with an ECM product, with or without added cell populations...
March 30, 2018: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/29595913/past-injurious-exercise-attenuates-activation-of-primary-calcium-dependent-injury-pathways-in-skeletal-muscle-during-subsequent-exercise
#14
Ryo Takagi, Riki Ogasawara, Junya Takegaki, Yuki Tamura, Arata Tsutaki, Koichi Nakazato, Naokata Ishii
Past contraction-induced skeletal muscle injury reduces the degree of subsequent injury; this phenomenon is called the "repeated bout effect (RBE)." This study addresses the mechanisms underlying the RBE, focusing on primary calcium-dependent injury pathways. Wistar rats were subdivided into single injury (SI) and repeated injury (RI) groups. At age 10 weeks, the right gastrocnemius muscle in each rat in the RI group was subjected to strenuous eccentric contractions (ECs). Subsequently, mild ECs were imposed on the same muscle of each rat at 14 weeks of age in both groups...
March 2018: Physiological Reports
https://www.readbyqxmd.com/read/29588024/effect-of-high-frequency-electromagnetic-wave-stimulation-on-muscle-injury-in-a-rat-model
#15
Da Hyun Song, Mi Hwa Kim, Yong-Taek Lee, Jung Hwan Lee, Kyung Ah Kim, Sang Jun Kim
INTRODUCTION: The aim of this study was to investigate biological changes in tissues with muscle contusion after the application of high frequency (HF) electromagnetic wave. METHODS: An acrylic pipe was placed on the right hind limb and a metallic ball was dropped inside the pipe, which resulted in a muscle contusion. After acquiring the optimal condition for muscle contusion, 20 Sprague-Dawley rats were allocated to the HF treatment (N = 10) and sham groups (N = 10), which then underwent muscle contusion injury at their right thigh...
March 21, 2018: Injury
https://www.readbyqxmd.com/read/29577896/platelet-endothelial-aggregation-receptor-1-pear1-is-involved-in-c2c12-myoblast-differentiation
#16
Ya Feng Cui, Yun Qin Yan, Dan Liu, Yu Sheng Pang, Jiang Wu, Shu Feng Li, Hui Li Tong
C2C12 murine myoblasts are a common model for studying muscle differentiation. Platelet endothelial aggregation receptor-1 (PEAR1), an epidermal growth factor repeat-containing transmembrane receptor, is known to participate in platelet contact-induced activation. In the present study, we demonstrated that PEAR1 is involved in the differentiation of C2C12 murine myoblasts. Western blotting and immunofluorescence staining were used to determine PEAR1 expression and localization during C2C12 cell differentiation...
March 22, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29577699/-time-dependent-expression-of-nrf2-protein-and-its-effects-on-wound-repair-in-skeletal-muscle
#17
X H Zhang, J Liu, N Li, Q X Du, Y Y Wang, J H Sun
OBJECTIVES: To detect the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) to explore its change rule and effects in the repair process of skeletal muscle. METHODS: An injury model of skeletal muscle was established by injection of cardiotoxin into the gastrocnemius muscle of SD male rats. The muscle samples were taken from control group and injury group at each time point (1 h, 4 h, 8 h, 12 h, 16 h, 1 d, 3 d, 5 d, 7 d, 9 d, 13 d, 17 d, 21 d)...
February 2018: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29574248/embryonic-only-arsenic-exposure-alters-skeletal-muscle-satellite-cell-function-in-killifish-fundulus-heteroclitus
#18
Dana B Szymkowicz, Katey L Schwendinger, Caroline M Tatnall, John R Swetenburg, Lisa J Bain
Arsenic is a contaminant found worldwide in drinking water and food. Epidemiological studies have correlated arsenic exposure with reduced weight gain and improper muscular development, while in vitro studies show that arsenic exposure impairs myogenic differentiation. The purpose of this study was to use Fundulus heteroclitus or killifish as a model organism to determine if embryonic-only arsenic exposure permanently reduces the number or function of muscle satellite cells. Killifish embryos were exposed to 0, 50, 200, or 800 ppb arsenite (AsIII ) until hatching, and then juvenile fish were raised in clean water...
March 19, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29571261/genomic-stability-and-telomere-regulation-in-skeletal-muscle-tissue
#19
REVIEW
Larissa Alexsandra da Silva Neto Trajano, Eduardo Tavares Lima Trajano, Marco Aurélio Dos Santos Silva, Ana Carolina Stumbo, Andre Luiz Mencalha, Adenilson de Souza da Fonseca
Muscle injuries are common, especially in sports and cumulative trauma disorder, and their repair is influenced by free radical formation, which causes damages in lipids, proteins and DNA. Oxidative DNA damages are repaired by base excision repair and nucleotide excision repair, ensuring telomeric and genomic stability. There are few studies on this topic in skeletal muscle cells. This review focuses on base excision repair and nucleotide excision repair, telomere regulation and how telomeric stabilization influences healthy muscle, injured muscle, exercise, and its relationship with aging...
February 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29564488/adult-thigh-muscle-injuries-from-diagnosis-to-treatment-what-the-radiologist-should-know
#20
REVIEW
João Cruz, Vasco Mascarenhas
Muscle injuries are one of the major problems facing elite athletes, representing a significant source of time lost from competition, with substantial consequences for teams and athletes. There are considerable pressures for a rapid return, but players who return to competition too soon have an increased risk of recurrent muscle injuries, which are associated with longer lay-offs. Imaging plays a key role in achieving the correct diagnosis, and magnetic resonance imaging (MRI) has emerged as the method of choice for skeletal muscle imaging...
March 21, 2018: Skeletal Radiology
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