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Endurance exercise

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https://www.readbyqxmd.com/read/28538328/a-systematic-review-of-the-association-between-physical-fitness-and-musculoskeletal-injury-risk-part-1-cardiorespiratory-endurance
#1
Peter J Lisman, Sarah J de la Motte, Timothy C Gribbin, Dianna P Jaffin, Kaitlin Murphy, Patricia A Deuster
Lisman, PJ, de la Motte, SJ, Gribbin, TC, Jaffin, DP, Murphy, K, and Deuster, PA. A systematic review of the association between physical fitness and musculoskeletal injury risk: part 1-cardiorespiratory endurance. J Strength Cond Res 31(6): 1744-1757, 2017-Musculoskeletal injuries (MSK-Is) are a significant health problem for both military and athletic populations. Research indicates that MSK-I is associated with physical fitness; however, the association between specific components of physical fitness and MSK-I in military and athletic populations has not been systematically examined...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28537848/influence-of-endurance-training-on-skeletal-muscle-mitophagy-regulatory-proteins-in-type-2-diabetic-men
#2
Christian Brinkmann, Axel Przyklenk, Alexander Metten, Thorsten Schiffer, Wilhelm Bloch, Klara Brixius, Sebastian Gehlert
BACKGROUND: Mitophagy is a form of autophagy for the elimination of mitochondria. Mitochondrial content and function are reduced in the skeletal muscle of patients with type 2 diabetes mellitus (T2DM). Physical training has been shown to restore mitochondrial capacity in T2DM patients, but the role of mitophagy has not been examined in this context. This study analyzes the impact of a 3-month endurance training on important skeletal muscle mitophagy regulatory proteins and oxidative phosphorylation (OXPHOS) complexes in T2DM patients...
May 24, 2017: Endocrine Research
https://www.readbyqxmd.com/read/28533890/effect-of-music-tempo-on-exercise-performance-and-heart-rate-among-young-adults
#3
Avinash E Thakare, Ranjeeta Mehrotra, Ayushi Singh
BACKGROUND & OBJECTIVES: Music captures attention, triggers a range of emotions, alters or regulates mood, increases work output, heightens arousal, induces states of higher functioning, reduces inhibitions and encourages rhythmic movement. Music has ergo-genic effect as well, it increases exercise performance, delays fatigue and increases performance and endurance, power and strength. Our study tried to evaluate the effect of music on exercise performance in young untrained subjects...
2017: International Journal of Physiology, Pathophysiology and Pharmacology
https://www.readbyqxmd.com/read/28532248/effects-of-drop-sets-with-resistance-training-on-increases-in-muscle-csa-strength-and-endurance-a-pilot-study
#4
Hayao Ozaki, Atsushi Kubota, Toshiharu Natsume, Jeremy P Loenneke, Takashi Abe, Shuichi Machida, Hisashi Naito
To investigate the effects of a single high-load (80% of one repetition maximum [1RM]) set with additional drop sets descending to a low-load (30% 1RM) without recovery intervals on muscle strength, endurance, and size in untrained young men. Nine untrained young men performed dumbbell curls to concentric failure 2-3 days per week for 8 weeks. Each arm was randomly assigned to one of the following three conditions: 3 sets of high-load (HL, 80% 1RM) resistance exercise, 3 sets of low-load [LL, 30% 1RM] resistance exercise, and a single high-load (SDS) set with additional drop sets descending to a low-load...
May 22, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28530078/-athlete-s-heart-the-more-the-merrier
#5
REVIEW
Reut Shavit, Michael Glikson, Naama Constantini
Regular moderate exercise training is effective for the prevention and treatment of many common chronic diseases and improves cardiovascular health and life expectancy. However, long-term excessive endurance exercise may induce pathological structural remodeling of the heart. The athlete's heart is characterized by enlargement of cardiac chambers and eccentric hypertrophy with preserved myocardial function as normal physiological adaptations for prolonged and intense endurance physical stress. However, recent studies have demonstrated transient right ventricular dysfunction and elevation of cardiac biomarkers following intense endurance exercise...
September 2016: Harefuah
https://www.readbyqxmd.com/read/28528447/a-single-bout-of-endurance-exercise-modulates-eeg-microstates-temporal-features
#6
Jérôme N Spring, Miralena I Tomescu, Jérôme Barral
Electrical neuroimaging is a promising method to explore the spontaneous brain function after physical exercise. The present study aims to investigate the effect of acute physical exercise on the temporal dynamic of the resting brain activity captured by the four conventional map topographies (microstates) described in the literature, and to associate these brain changes with the post-exercise neuromuscular function. Twenty endurance-trained subjects performed a 30-min biking task at 60% of their maximal aerobic power followed by a 10 km all-out time trial...
May 20, 2017: Brain Topography
https://www.readbyqxmd.com/read/28526870/time-course-responses-of-circulating-micrornas-to-three-resistance-training-protocols-in-healthy-young-men
#7
Shufang Cui, Biao Sun, Xin Yin, Xia Guo, Dingming Chao, Chunni Zhang, Chen-Yu Zhang, Xi Chen, Jizheng Ma
Circulating microRNAs (c-miRNAs) in human plasma have been described as a potential marker of exercise. The present study investigated the effects of three acute resistance training (RT) protocols on the time-course changes of the c-miRNAs profiles in young males. The subjects (n = 45) were randomly divided into three groups: muscular strength endurance (SE), muscular hypertrophy (MH) and maximum strength (MS). Venous blood samples were obtained before exercise and immediately, 1 h and 24 h after each RT protocol to assess the following biological parameters: c-miRNAs, anabolic and catabolic hormones, inflammatory cytokines and muscle damage markers...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526781/cd36-is-essential-for-endurance-improvement-changes-in%C3%A2-whole-body-metabolism-and-efficient-ppar-related-transcriptional-responses-in-the-muscle-with-exercise-training
#8
Mark Christian C Manio, Shigenobu Matsumura, Daisaku Masuda, Kazuo Inoue
Although circulating fatty acids are utilized as energy substrates, they also function as ligands to the peroxisome-proliferator activated receptors (PPARs), a family of fatty acid sensing transcription factors. Exercise training leads to various adaptations in the muscle such as elevation of glycogen content, mitochondrial number as well as upregulation of fatty acid uptake and utilization through downstream transcriptional adaptations. In line with this, CD36 has been shown to be critical in controlling fatty acid uptake and consequently, fatty acid oxidation...
May 2017: Physiological Reports
https://www.readbyqxmd.com/read/28525355/does-body-fat-percentage-predict-post-exercise-heart-rate-response-in-non-obese-children-and-adolescents
#9
Tatjana Jezdimirovic, Valdemar Stajer, Sasa Semeredi, Julio Calleja-Gonzalez, Sergej M Ostojic
BACKGROUND: A correlation between adiposity and post-exercise autonomic regulation has been established in overweight and obese children. However, little information exists about this link in non-obese youth. The main purpose of this cross-sectional study was to describe the relationship between body fat percentage (BFP) and heart rate recovery after exercise [post-exercise heart rate (PEHR)], a marker of autonomic regulation, in normal-weight children and adolescents. METHODS: We evaluated the body composition of 183 children and adolescents (age 15...
May 18, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28523996/micro-rnas-exercise-and-cellular-plasticity-in-humans-the-impact-of-dietary-factors-and-hypoxia
#10
Timothée Watier, Anthony Mj Sanchez
Physical exercise is a stress that modulates a plethora of cellular mechanisms to promote morphological and metabolic adaptations. Substantial efforts have been made to better understand the modulation of pathways involved in cell plasticity during exercise, but human explorations may be limited because invasive procedures are often required. In recent years, minimally invasive methods for the analysis of microRNAs (miRNAs) modulation in response to exercise have been developed. miRNAs are small molecules that belong to a family of non-coding RNAs...
May 19, 2017: MicroRNA
https://www.readbyqxmd.com/read/28516907/vagal-determinants-of-exercise-capacity
#11
Asif Machhada, Stefan Trapp, Nephtali Marina, Robert C M Stephens, John Whittle, Mark F Lythgoe, Sergey Kasparov, Gareth L Ackland, Alexander V Gourine
Indirect measures of cardiac vagal activity are strongly associated with exercise capacity, yet a causal relationship has not been established. Here we show that in rats, genetic silencing of the largest population of brainstem vagal preganglionic neurons residing in the brainstem's dorsal vagal motor nucleus dramatically impairs exercise capacity, while optogenetic recruitment of the same neuronal population enhances cardiac contractility and prolongs exercise endurance. These data provide direct experimental evidence that parasympathetic vagal drive generated by a defined CNS circuit determines the ability to exercise...
May 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28516519/exercise-training-in-diastolic-heart-failure-ex-dhf-rationale-and-design-of-a-multicentre-prospective-randomized-controlled-parallel-group-trial
#12
Frank Edelmann, Anna Bobenko, Götz Gelbrich, Gerd Hasenfuss, Christoph Herrmann-Lingen, André Duvinage, Silja Schwarz, Meinhard Mende, Christiane Prettin, Tobias Trippel, Ruhdja Lindhorst, Daniel Morris, Elisabeth Pieske-Kraigher, Kathleen Nolte, Hans-Dirk Düngen, Rolf Wachter, Martin Halle, Burkert Pieske
Heart failure with preserved ejection fraction (HFpEF) is a common disease with high incidence and increasing prevalence. Patients suffer from functional limitation, poor health-related quality of life, and reduced prognosis. A pilot study in a smaller group of HFpEF patients showed that structured, supervised exercise training (ET) improves maximal exercise capacity, diastolic function, and physical quality of life. However, the long-term effects of ET on patient-related outcomes remain unclear in HFpEF. The primary objective of the Exercise training in Diastolic Heart Failure (Ex-DHF) trial is to investigate whether a 12 month supervised ET can improve a clinically meaningful composite outcome score in HFpEF patients...
May 17, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28515830/how-different-respiratory-rate-patterns-affect-cardiorespiratory-variables-and-performance
#13
Minas Nalbandian, Zsolt Radak, Jun Taniguchi, Takeda Masaki
This study aims to elucidate how respiratory rate (RR) patterns may affect respiratory gas exchange variables and performance during incremental intensity- exercise. 10 healthy young men (mean ± SD, age: 20.7 ± 0.5 years, height: 174.3 ± 5.7 cm, and body mass: 72.6 ± 10.4 kg) performed three incremental tests on a cycle ergometer at three different RR (60, 45 and 30 breaths per min) in each trial. During the tests, tidal volume (TV), minute ventilation (VE), fractional content of oxygen (FeO2), fractional content of carbon dioxide (FeCO2), oxygen uptake (VO2), expiratory carbon dioxide (VCO2), equivalent of oxygen (EqO2), VE/VCO2, and respiratory exchange ratio (RER) were determinate breath-by-breath...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28515695/chronic-endurance-exercise-impairs-cardiac-structure-and-function-in-middle-aged-mice-with-impaired-nrf2-signaling
#14
Gobinath Shanmugam, Madhusudhanan Narasimhan, Robbie L Conley, Thiagarajan Sairam, Ashutosh Kumar, Ronald P Mason, Ramalingam Sankaran, John R Hoidal, Namakkal S Rajasekaran
Nuclear factor erythroid 2 related factor 2 (Nrf2) signaling maintains the redox homeostasis and its activation is shown to suppress cardiac maladaptation. Earlier we reported that acute endurance exercise (2 days) evoked antioxidant cytoprotection in young WT animals but not in aged WT animals. However, the effect of repeated endurance exercise during biologic aging (WT) characterized by an inherent deterioration in Nrf2 signaling and pathological aging (pronounced oxidative susceptibility-Nrf2 absence) in the myocardium remains elusive...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28515312/astrocytic-glycogen-derived-lactate-fuels-the-brain-during-exhaustive-exercise-to-maintain-endurance-capacity
#15
Takashi Matsui, Hideki Omuro, Yu-Fan Liu, Mariko Soya, Takeru Shima, Bruce S McEwen, Hideaki Soya
Brain glycogen stored in astrocytes provides lactate as an energy source to neurons through monocarboxylate transporters (MCTs) to maintain neuronal functions such as hippocampus-regulated memory formation. Although prolonged exhaustive exercise decreases brain glycogen, the role of this decrease and lactate transport in the exercising brain remains less clear. Because muscle glycogen fuels exercising muscles, we hypothesized that astrocytic glycogen plays an energetic role in the prolonged-exercising brain to maintain endurance capacity through lactate transport...
May 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28513268/effects-of-volume-training-on-strength-and-endurance-of-back-muscles-a-randomized-controlled-trial
#16
Leonardo Shigaki, Cynthia Gobbi Alves Araújo, Mariane Guizeline Calderon, Thais Karoline Cezar Costa, Andreo Fernando Aguiar, Leonardo Oliveira Pena Costa, Rubens A da Silva
CONTEXT: Strength/resistance training volume has historically been supported in the American College of Sports Medicine recommendations. However, for the back muscles, exercise prescription related to the number of sets, such as single vs. multiple, is not well established in the literature. OBJECTIVE: The purpose of this study was to compare the effects of two training volumes on strength and endurance of back extensor muscles in untrained young participants, with regard to a repeated measures design...
May 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28512433/reported-hydration-beliefs-and-behaviors-without-effect-on-plasma-sodium-in-endurance-athletes
#17
Daniela Chlíbková, Pantelis T Nikolaidis, Thomas Rosemann, Beat Knechtle, Josef Bednář
Purpose: Little information is available on the association of hydration beliefs and behaviors in endurance athletes and exercise-associated hyponatremia (EAH). The aim of the present study was to determine hydration beliefs and behaviors in endurance athletes. Method: A 100 and 38 recreational athletes [107 mountain bikers (MTBers) and 31 runners] competing in seven different endurance and ultra-endurance races completed pre- and post-race questionnaires, and a subgroup of 113 (82%) participants (82 MTBers and 31 runners) also provided their blood samples...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28508559/two-weeks-of-repetitive-gut-challenge-reduces-exercise-associated-gastrointestinal-symptoms-and-malabsorption
#18
Atlanta Miall, Anthony Khoo, Christopher Rauch, Rhiannon Snipe, Vera Camões-Costa, Peter R Gibson, Ricardo J S Costa
Debilitating gastrointestinal symptoms are a common feature of endurance running, and may be exacerbated by and (or) limit the ability to tolerate carbohydrate intake during exercise. The study aimed to determine whether two weeks of repetitive gut-challenge during running can reduce exercise associated gastrointestinal symptoms and carbohydrate malabsorption. Endurance runners (n= 18) performed an initial gut-challenge trial (GC1) comprising 2 h running exercise at 60% VO2max (steady state) whilst consuming a formulated gel-disc containing 30 g carbohydrates (2:1 glucose-fructose, 10% w/v) every 20 min, followed by a 1 h running effort bout...
May 16, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28508398/effect-of-electromyographic-biofeedback-as-an-add-on-to-pelvic-floor-muscle-exercises-on-neuromuscular-outcomes-and-quality-of-life-in-postmenopausal-women-with-stress-urinary-incontinence-a-randomized-controlled-trial
#19
Adriane Bertotto, Renata Schvartzman, Silvana Uchôa, Maria Celeste Osório Wender
AIMS: To compare the efficacy of pelvic floor muscle exercises (PFME) with and without electromyographic biofeedback (BF) in increasing muscle strength, improving myoelectric activity, and improving pre-contraction and quality of life in postmenopausal women with stress urinary incontinence. METHODS: Randomized controlled trial of 49 postmenopausal women with stress urinary incontinence. Participants were allocated across three groups: control, PFME alone, and PFME + BF...
May 16, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28507196/health-benefits-of-exercise
#20
Gregory N Ruegsegger, Frank W Booth
Overwhelming evidence exists that lifelong exercise is associated with a longer health span, delaying the onset of 40 chronic conditions/diseases. What is beginning to be learned is the molecular mechanisms by which exercise sustains and improves quality of life. The current review begins with two short considerations. The first short presentation concerns the effects of endurance exercise training on cardiovascular fitness, and how it relates to improved health outcomes. The second short section contemplates emerging molecular connections from endurance training to mental health...
May 15, 2017: Cold Spring Harbor Perspectives in Medicine
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