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Muscle fatigue and recovery

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https://www.readbyqxmd.com/read/27911915/marathon-race-affects-neutrophil-surface-molecules-role-of-inflammatory-mediators
#1
Vinicius Coneglian Santos, Ana Paula Renno Sierra, Rodrigo Oliveira, Kim Guimarães Caçula, César Miguel Momesso, Fabio Takeo Sato, Maysa Braga Barros Silva, Heloisa Helena Oliveira, Maria Elizabeth Pereira Passos, Diego Ribeiro de Souza, Olivia Santos Gondim, Marino Benetti, Adriana Cristina Levada-Pires, Nabil Ghorayeb, Maria Augusta Peduti Dal Molin Kiss, Renata Gorjão, Tânia Cristina Pithon-Curi, Maria Fernanda Cury-Boaventura
The fatigue induced by marathon races was observed in terms of inflammatory and immunological outcomes. Neutrophil survival and activation are essential for inflammation resolution and contributes directly to the pathogenesis of many infectious and inflammatory conditions. The aim of this study was to investigate the effect of marathon races on surface molecules related to neutrophil adhesion and extrinsic apoptosis pathway and its association with inflammatory markers. We evaluated 23 trained male runners at the São Paulo International Marathon 2013...
2016: PloS One
https://www.readbyqxmd.com/read/27908613/sparc-interacts-with-actin-in-skeletal-muscle-in%C3%A2-vitro-and-in%C3%A2-vivo
#2
Louise H Jørgensen, Pia Lørup Jepsen, Anders Boysen, Line B Dalgaard, Lars G Hvid, Niels Ørtenblad, Dea Ravn, Jeeva Sellathurai, Jakob Møller-Jensen, Hanns Lochmüller, Henrik D Schrøder
The cytoskeleton is an integral part of skeletal muscle structure, and reorganization of the cytoskeleton occurs during various modes of remodeling. We previously found that the extracellular matrix protein secreted protein acidic and rich in cysteine (SPARC) is up-regulated and expressed intracellularly in developing muscle, during regeneration and in myopathies, which together suggests that SPARC might serve a specific role within muscle cells. Using co-immunoprecipitation combined with mass spectrometry and verified by staining for direct protein-protein interaction, we find that SPARC binds to actin...
November 28, 2016: American Journal of Pathology
https://www.readbyqxmd.com/read/27904798/functional-outcomes-after-distal-biceps-brachii-repair-a-case-series
#3
Christine L Redmond, Tim Morris, Charissa Otto, Tanisha Zerella, John G Semmler, Taaibos Human, Joideep Phadnis, Gregory I Bain
OBJECTIVES: To investigate outcomes after surgical repair of distal biceps tendon rupture and the influence of arm dominance on isokinetic flexion and supination results. BACKGROUND/PURPOSE: While relatively uncommon, rupture of the distal biceps tendon can result in significant strength deficits, for which surgical repair is recommended. The purpose of this study was to assess patient reported functional outcomes and muscle performance following surgery. METHODS: A sample of 23 participants (22 males, 1 female), who had previously undergone surgical repair of the distal biceps tendon, were re-examined at a minimum of one year after surgery...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27900297/effects-of-lymphatic-drainage-and-local-cryo-exposition-regeneration-after-high-intensive-exercises
#4
Michael Behringer, Diana Jedlicka, Molly McCourt, Matthias Ring, Joachim Mester
BACKGROUND: Recovery from exercise and competition is important in sports medicine, particularly when rest periods are short. The objective is to determine the efficacy of cryo exposition (CRY) and manual lymphatic drainage (MLD) to hasten short term recovery of muscle performance after eccentric contractions. METHODS: In a randomized controlled trial, 30 healthy sport students (21 males, 9 females; age: 25.7±2.8 years) performed 4×20 eccentric contractions of knee extensors, followed by 30 min MLD, CRY, or rest (RST) under controlled laboratory environment...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27895542/effect-of-tart-cherry-juice-on-recovery-and-next-day-performance-in-well-trained-water-polo-players
#5
Rachel McCormick, Peter Peeling, Martyn Binnie, Brian Dawson, Marc Sim
BACKGROUND: Tart Montmorency cherries contain high concentrations of phytochemicals and anthocyanins, which have recently been linked to improved athletic recovery and subsequent performance. To date however, previous work reporting promising results has focused on land-based endurance sports, with any potential benefits to team sports remaining unknown. As such, this investigation set-out to examine the effect of supplemental tart cherry juice (CJ) on recovery and next day athletic performance in highly-trained water-based team sport athletes over seven days...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27874264/photobiomodulation-in-human-muscle-tissue-an-advantage-in-sports-performance
#6
Cleber Ferraresi, Ying-Ying Huang, Michael R Hamblin
Photobiomodulation (PBM) describes the use of red or near-infrared (NIR) light to stimulate, heal, and regenerate damaged tissue. Both preconditioning (light delivered to muscles before exercise) and PBM applied after exercise can increase sports performance in athletes. This review covers the effects of PBM on human muscle tissue in clinical trials in volunteers related to sports performance and in athletes. The parameters used were categorized into those with positive effects or no effects on muscle performance and recovery...
November 22, 2016: Journal of Biophotonics
https://www.readbyqxmd.com/read/27872595/redox-mechanism-of-reactive-oxygen-species-in-exercise
#7
REVIEW
Feng He, Juan Li, Zewen Liu, Chia-Chen Chuang, Wenge Yang, Li Zuo
It is well known that regular exercise can benefit health by enhancing antioxidant defenses in the body. However, unaccustomed and/or exhaustive exercise can generate excessive reactive oxygen species (ROS), leading to oxidative stress-related tissue damages and impaired muscle contractility. ROS are produced in both aerobic and anaerobic exercise. Mitochondria, NADPH oxidases and xanthine oxidases have all been identified as potential contributors to ROS production, yet the exact redox mechanisms underlying exercise-induced oxidative stress remain elusive...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27823576/exploring-the-effect-of-laryngeal-neuromuscular-electrical-stimulation-on-voice
#8
M Gorham-Rowan, R Morris
OBJECTIVE: This study was conducted to explore the potential use of neuromuscular electrical stimulation as an adjunctive treatment for muscle tension dysphonia. METHODS: Voice data and ratings of fatigue and soreness were obtained for two experiments. Experiment one examined the vocal effects of neuromuscular electrical stimulation applied to the neck for 15 minutes. Experiment two examined the recovery effect of laryngeal neuromuscular electrical stimulation following a vocal loading task among normophonic women...
November 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27707416/upper-trapezius-fatigue-in-carpet-weaving-the-impact-of-a-repetitive-task-cycle
#9
Neda Mahdavi, Majid Motamedzade, Ali Ashraf Jamshidi, Ebrahim Darvishi, Abbas Moghimbeygi, Rashid Heidari Moghadam
INTRODUCTION: Shoulder disorders are one of the most prevalent musculoskeletal disorders among carpet weavers. The most important cause of these disorders is muscle fatigue. The aim of the present study is to investigate the effect of carpet weaving characteristics on upper trapezius (UTr) muscle fatigue during a task cycle. METHOD: In this cross-sectional study, 9 women and 3 men participated. During an 80-min cycle of carpet weaving, a times-series model was applied to assess electromyography amplitude and frequency changes...
October 6, 2016: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/27706260/comparison-of-two-different-modes-of-active-recovery-on-muscles-performance-after-fatiguing-exercise-in-mountain-canoeist-and-football-players
#10
Anna Mika, Łukasz Oleksy, Renata Kielnar, Ewa Wodka-Natkaniec, Magdalena Twardowska, Kamil Kamiński, Zbigniew Małek
BACKGROUND: The aim of this study is to assess if the application of different methods of active recovery (working the same or different muscle groups from those which were active during fatiguing exercise) results in significant differences in muscle performance and if the efficiency of the active recovery method is dependent upon the specific sport activity (training loads). DESIGN: A parallel group non-blinded trial with repeated measurements. METHODS: Thirteen mountain canoeists and twelve football players participated in this study...
2016: PloS One
https://www.readbyqxmd.com/read/27706196/reliability-of-a-novel-high-intensity-one-leg-dynamic-exercise-protocol-to-measure-muscle-endurance
#11
Benjamin Pageaux, Romuald Lepers, Samuele M Marcora
We recently developed a high intensity one leg dynamic exercise (OLDE) protocol to measure muscle endurance and investigate the central and peripheral mechanisms of muscle fatigue. The aims of the present study were to establish the reliability of this novel protocol and describe the isokinetic muscle fatigue induced by high intensity OLDE and its recovery. Eight subjects performed the OLDE protocol (time to exhaustion test of the right leg at 85% of peak power output) three times over a week period. Isokinetic maximal voluntary contraction torque at 60 (MVC60), 100 (MVC100) and 140 (MVC140) deg/s was measured pre-exercise, shortly after exhaustion (13 ± 4 s), 20 s (P20) and 40 s (P40) post-exercise...
2016: PloS One
https://www.readbyqxmd.com/read/27695979/aging-and-the-effects-of-a-half-marathon-on-achilles-tendon-force-elongation-relationship
#12
Thijs Maria Anne Ackermans, Gaspar Epro, Christopher McCrum, Kai Daniel Oberländer, Frank Suhr, Maarten Robert Drost, Kenneth Meijer, Kiros Karamanidis
PURPOSE: We aimed to determine whether there are different changes in Achilles tendon (AT) mechanical properties in middle-aged, compared to younger runners that might indicate that tendon fatigue, induced by long-distance running, is age-dependent. METHODS: 27 middle-aged (50-67 years) and 22 younger (21-29 years) participants ran a 21 km route at their own pace (mean and SD: old: 3.1 ± 0.3 m s(-1); young: 3.6 ± 0.5 m s(-1)). We tested for changes in the AT force-elongation relationship using dynamometry and ultrasonography during isometric voluntary ankle plantarflexion ramp contractions, conducted 20-28 h pre-run, immediately pre-run, immediately post-run and 20-28 h post-run...
September 30, 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27677913/a-review-of-the-acute-effects-and-long-term-adaptations-of-single-and-multi-joint-exercises-during-resistance-training
#13
Paulo Gentil, James Fisher, James Steele
Resistance exercises can be considered to be multi-joint (MJ) or single-joint (SJ) in nature. Many strength coaches, trainers, and trainees believe that adding SJ exercises to a resistance training (RT) program may be required to optimize muscular size and strength. However, given that lack of time is a frequently cited barrier to exercise adoption, the time commitment resulting from these recommendations may not be convenient for many people. Therefore, it is important to find strategies that reduce the time commitment without negatively affecting results...
September 27, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27676874/athletic-injury-prevention-determinants-of-sprint-performance
#14
Pascal Edouard, Pierrick Arnal, Philippe Gimenez, Pierre Samozino, Pedro Jimenez-Reyes, Matt Brughelli, Jurdan Mendiguchia, Jean-Benoit Morin
OBJECTIVE: The hamstring muscles are the most injured muscles in athletes practicing sprints. However, they seem greatly contributing to the production of horizontal force, a key element in the sprint acceleration performance. The aim of our study was to experimentally analyse the link between the production of horizontal force and strength of the hamstrings at maximum sprints on a treadmill and in fatigue conditions. PATIENTS AND METHODS: Fourteen male subjects accustomed to sprint participated in the experiment consisting in 12 6-seconds sprints separated by 44seconds of recovery on an instrumented treadmill sprint for measuring the horizontal force, coupled with the simultaneous recording of the EMG activity of the vastus lateralis, rectus biceps femoris and gluteus muscles...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27676852/socio-professional-and-family-reintegration-of-patients-having-suffered-a-breast-cancer-with-a-deconditioning
#15
Anne-Sophie Dolez, Azahara Alcantara, Romain Mouny
The Montévrain clinic wants to be a medical center oriented towards autonomy and recovery of patient autonomy, reintegration within the family, as well as social and professional reintegration. After studying the care offer and the population base in Seine et Marne, we wanted to get involved in order to improve the capacity of patients treated for breast cancer, suffering deconditioning, with or without joint limitation and functional impairment, with or without a mental deterioration. We studied the recommendations of the "plan cancer III", researched the tertiary phase of cancer treatment and studied literature about evaluation of the physical and mental condition...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27673449/limitations-in-intense-exercise-performance-of-athletes-effect-of-speed-endurance-training-on-ion-handling-and-fatigue-development
#16
Morten Hostrup, Jens Bangsbo
Mechanisms underlying fatigue development and limitations for performance during intense exercise have been intensively studied during the past couple of decades. Fatigue development may involve several interacting factors and depends on type of exercise undertaken and training level of the individual. Intense exercise (½-6 min) causes major ionic perturbations (Ca(2+) , Cl(-) , H(+) , K(+) , lactate(-) , and Na(+) ) that may reduce sarcolemmal excitability, Ca(2+) release, and force production of skeletal muscle...
September 27, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27632878/a-randomized-controlled-pilot-study-to-investigate-the-effect-of-whole-body-vibration-on-lower-extremity-fatigue
#17
Noureddin Nakhostin Ansari, Soofia Naghdi, Hadi Karimi, Zahra Fakhari, Scott Hasson
CONTEXT: Whole body vibration (WBV) is a type of weight-bearing exercise used in the field of sport and rehabilitation. There is no study on the effects of WBV on muscle recovery after a fatiguing activity. OBJECTIVE: To determine the effects of a single whole body vibration (WBV) session on lower extremity fatigue. DESIGN: Randomized controlled pilot study. SETTING: University Physiotherapy Clinic. SUBJECTS: A total of 13 healthy young men volunteered to participate in this study...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27632195/effect-of-compression-socks-worn-between-repeated-maximal-running-bouts
#18
Ned Brophy-Williams, Matthew W Driller, Cecilia M Kitic, James W Fell, Shona L Halson
PURPOSE: To determine the effect of wearing compression socks between repeated running bouts on perceptual, physiological and performance-based parameters. METHODS: Twelve well-trained male runners (mean ± SD; 5km time 19:24 ± 1:19 mm:ss) recorded their perceptions on the efficacy of compression socks for recovery prior to completion of two experimental sessions. Each session consisted of two 5km running time trials (TT1 and TT2) on a treadmill, with a one-hour recovery period between each TT...
September 15, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27579497/contractile-function-recovery-in-severely-injured-gastrocnemius-muscle-of-rats-treated-with-either-oleic-or-linoleic-acid
#19
Phablo Abreu, Carlos H J Pinheiro, Kaio F Vitzel, Diogo A A Vasconcelos, Rosângela P Torres, Marco S Fortes, Gabriel N Marzuca-Nassr, Jorge Mancini-Filho, Sandro M Hirabara, Rui Curi
What is the central question of this study? Oleic and linoleic acids modulate fibroblast proliferation and myogenic differentiation in vitro. However, their in vivo effects on muscle regeneration have not yet been examined. We investigated the effects of either oleic or linoleic acid on a well-established model of muscle regeneration after severe laceration. What is the main finding and its importance? We found that linoleic acid increases fibrous tissue deposition and impairs muscle regeneration and recovery of contractile function, whereas oleic acid has the opposite effects in severely injured gastrocnemius muscle, suggesting that linoleic acid has a harmful effect and oleic acid a potential therapeutic effect on muscle regeneration...
August 31, 2016: Experimental Physiology
https://www.readbyqxmd.com/read/27575834/pre-exercise-infrared-low-level-laser-therapy-810%C3%A2-nm-in-skeletal-muscle-performance-and-postexercise-recovery-in-humans-what-is-the-optimal-dose-a-randomized-double-blind-placebo-controlled-clinical-trial
#20
Adriane Aver Vanin, Thiago De Marchi, Shaiane Silva Tomazoni, Olga Tairova, Heliodora Leão Casalechi, Paulo de Tarso Camillo de Carvalho, Jan Magnus Bjordal, Ernesto Cesar Leal-Junior
AIM: This study aimed to evaluate the medium-term effects of low-level laser therapy (LLLT or photobiomodulation) in postexercise skeletal muscle recovery and performance enhancement and to identify the optimal dose of 810 nm LLLT. MATERIALS AND METHODS: A randomized, double-blind, placebo-controlled trial was performed, with voluntary participation of 28 high-level soccer athletes. We analyzed maximum voluntary contraction (MVC), delayed onset muscle soreness (DOMS), creatine kinase (CK) activity, and interleukin-6 (IL-6) expression...
October 2016: Photomedicine and Laser Surgery
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