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"Exercise recovery"

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https://www.readbyqxmd.com/read/28433920/proteomic-analysis-of-sockeye-salmon-serum-as-a-tool-for-biomarker-discovery-and-new-insight-into-the-sublethal-toxicity-of-diluted-bitumen
#1
Sarah L Alderman, Laura A Dindia, Christopher J Kennedy, Anthony P Farrell, Todd E Gillis
Pipelines carrying diluted bitumen (dilbit) from Canada's oil sands traverse North America, including the freshwater habitat of Pacific salmon, posing a risk of environmental release and aquatic exposure. Swimming performance is impacted in juvenile sockeye (Oncorhynchus nerka) exposed to dilbit; therefore biomarkers of dilbit exposure will be valuable for monitoring at-risk salmon stocks. This study characterized changes in the serum proteome of sockeye exposed to a sub-lethal and environmentally relevant concentration of dilbit using isobaric tags for relative and absolute quantitation (iTRAQ), and included a range of experimental conditions to permit identification of biomarkers that are robust across time (1 and 4wk) and exercise level (at rest and following a swim test)...
April 12, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28386694/effect-of-alcohol-after-muscle-damaging-resistance-exercise-on-muscular-performance-recovery-and-inflammatory-capacity-in-women
#2
Danielle E Levitt, Hui-Ying Luk, Anthony A Duplanty, Brian K McFarlin, David W Hill, Jakob L Vingren
PURPOSE: To investigate the effect of acute alcohol consumption on muscular performance recovery, assessed by maximal torque production, and on inflammatory capacity, assessed by lipopolysaccharide (LPS)-stimulated cytokine production, following muscle-damaging resistance exercise in women. METHODS: Thirteen recreationally resistance-trained women completed two identical exercise bouts (300 maximal single-leg eccentric leg extensions) followed by alcohol (1.09 g ethanol kg(-1) fat-free body mass) or placebo ingestion...
April 6, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28385599/intramyocellular-lipid-content-and-lipogenic-gene-expression-responses-following-a-single-bout-of-resistance-type-exercise-differ-between-young-and-older-men
#3
Kostas Tsintzas, Francis B Stephens, Tim Snijders, Benjamin T Wall, Scott Cooper, Joanne Mallinson, Lex B Verdijk, Luc J C van Loon
The aim of this study was to examine the temporal relationship between intramyocellular lipid (IMCL) content and the expression of genes associated with IMCL turnover, fat metabolism, and inflammation during recovery from an acute bout of resistance type exercise in old versus young men. Seven healthy young (23±2years, 77.2±2.9kg) and seven healthy older (72±1years, 79.3±4.9kg) males performed a single bout of resistance exercise involving 6 sets of 10 repetitions of leg press and 6 sets of 10 repetitions of leg extension at 75% one-repetition maximum (1-RM)...
April 3, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28360825/ingestion-of-oxygenated-water-enhances-lactate-clearance-kinetics-in-trained-runners
#4
Neil Fleming, Jeremiah Vaughan, Matthew Feeback
BACKGROUND: Drinks with higher dissolved oxygen concentrations have in recent times gained popularity as a potential ergogenic aid, despite a lack of evidence regarding their efficacy. The aim of this study was to assess effects of ingestion of an oxygen supplement (OS) on exercise performance and post-exercise recovery in a group of trained runners. METHODS: Trained male runners (n = 25, mean ± SD; age 23 ± 6 years, mass 70 ± 9 kg, BMI 21.9 ± 2...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28358570/enhancing-daily-well-being-at-work-through-lunchtime-park-walks-and-relaxation-exercises-recovery-experiences-as-mediators
#5
Marjaana Sianoja, Christine J Syrek, Jessica de Bloom, Kalevi Korpela, Ulla Kinnunen
Only few studies so far have examined recovery from work during workday breaks. In this intervention study, based on the effort-recovery model and the conservation of resources theory, we examined how to enhance recovery during lunch breaks. More specifically, we examined the within-person effects of lunchtime park walks and relaxation exercises on employees' levels of concentration, strain, and fatigue experienced at the end of a working day. We moreover tested whether detachment from work and enjoyment experienced during lunch breaks transmitted the effects of these activities to well-being outcomes...
March 30, 2017: Journal of Occupational Health Psychology
https://www.readbyqxmd.com/read/28358334/glucose-plus-fructose-ingestion-for-post-exercise-recovery-greater-than-the-sum-of-its-parts
#6
REVIEW
Javier T Gonzalez, Cas J Fuchs, James A Betts, Luc J C van Loon
Carbohydrate availability in the form of muscle and liver glycogen is an important determinant of performance during prolonged bouts of moderate- to high-intensity exercise. Therefore, when effective endurance performance is an objective on multiple occasions within a 24-h period, the restoration of endogenous glycogen stores is the principal factor determining recovery. This review considers the role of glucose-fructose co-ingestion on liver and muscle glycogen repletion following prolonged exercise. Glucose and fructose are primarily absorbed by different intestinal transport proteins; by combining the ingestion of glucose with fructose, both transport pathways are utilised, which increases the total capacity for carbohydrate absorption...
March 30, 2017: Nutrients
https://www.readbyqxmd.com/read/28337890/beneficial-effects-of-protein-hydrolysates-in-exercise-and-sports-nutrition
#7
J Yuan, B Jiang, K Li, W Shen, J L Tang
Protein hydrolysates (PH) are rich sources of proteins that supply the need of exercising muscles. PHs are enriched in di- and tripeptides and are better than free amino acids or intact proteins when muscle anabolic effect is considered. Digestion, absorption and muscle uptake of amino acids are faster and more efficient when PH is ingested in comparison to the respective intact protein. PHs not only enhance endurance in high intensity exercise regimen, but also help in faster post-exercise recovery of muscle by promoting glycogen synthesis, although the latter effect requires more convincing evidence...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28319422/phototherapy-for-improvement-of-performance-and-exercise-recovery-comparison-of-3-commercially-available-devices
#8
Thiago De Marchi, Vinicius Mazzochi Schmitt, Carla Danúbia da Silva Fabro, Larissa Lopes da Silva, Juliane Sene, Olga Tairova, Mirian Salvador
CONTEXT:   Recent studies suggest the prophylactic use of low-powered laser/light has ergogenic effects on athletic performance and postactivity recovery. Manufacturers of high-powered lasers/light devices claim that these can produce the same clinical benefits with increased power and decreased irradiation time; however, research with high-powered lasers is lacking. OBJECTIVE:   To evaluate the magnitude of observed phototherapeutic effects with 3 commercially available devices...
March 20, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28296942/co-ingestion-of-carbohydrate-and-whey-protein-increases-fasted-rates-of-muscle-protein-synthesis-immediately-after-resistance-exercise-in-rats
#9
Wanyi Wang, Zhenping Ding, Geoffrey J Solares, Soon-Mi Choi, Bo Wang, Aram Yoon, Roger P Farrar, John L Ivy
The objective of the study was to investigate whether co-ingestion of carbohydrate and protein as compared with protein alone augments muscle protein synthesis (MPS) during early exercise recovery. Two months old rats performed 10 repetitions of ladder climbing with 75% of body weight attached to their tails. Placebo (PLA), whey protein (WP), or whey protein plus carbohydrate (CP) was then given to rats by gavage. An additional group of sedentary rats (SED) was used as controls. Blood samples were collected immediately and at either 1 or 2 h after exercise...
2017: PloS One
https://www.readbyqxmd.com/read/28254758/role-of-mct1-and-caii-in-skeletal-muscle-ph-homeostasis-energetics-and-function-in-vivo-insights-from-mct1-haploinsufficient-mice
#10
Benjamin Chatel, David Bendahan, Christophe Hourdé, Luc Pellerin, Sylvain Lengacher, Pierre Magistretti, Yann Le Fur, Christophe Vilmen, Monique Bernard, Laurent A Messonnier
The purpose of this study was to investigate the effects of a partial suppression of monocarboxylate transporter (MCT)-1 on skeletal muscle pH, energetics, and function (MCT1(+/-) mice). Twenty-four MCT1(+/-) and 13 wild-type (WT) mice were subjected to a rest-exercise-recovery protocol, allowing assessment of muscle energetics (by magnetic resonance spectroscopy) and function. The study included analysis of enzyme activities and content of protein involved in pH regulation. Skeletal muscle of MCT1(+/-) mice had lower MCT1 (-61%; P < 0...
March 2, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28253022/a-sodium-drink-enhances-fluid-retention-during-3-hours-of-post-exercise-recovery-when-ingested-with-a-standard-meal
#11
Gethin H Evans, Jennifer Miller, Sophie Whiteley, Lewis J James
The purpose of this study was to examine the efficacy of water and a 50 mmol/L NaCl solution on post-exercise rehydration when a standard meal was consumed during rehydration. Eight healthy participants took part in two experimental trials during which they lost 1.5 ± 0.4 % of initial body mass via intermittent exercise in the heat. Participants then rehydrated over a 60 minute period with water or a 50 mmol/L NaCl solution in a volume equivalent to 150% of their body mass loss during exercise. In addition, a standard meal was ingested during this time which was equivalent to 30% of participants predicted daily energy expenditure...
March 2, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28195970/reduction-of-physiological-strain-under-a-hot-and-humid-environment-by-a-hybrid-cooling-vest
#12
Albert P C Chan, Y Yang, Francis K W Wong, Michael C H Yam, Del P Wong, W F Song
Cooling treatment is regarded as one of good practices to provide safe training conditions to athletic trainers in the hot environment. The present study aimed to investigate whether wearing a commercial lightweight and portable hybrid cooling vest that combines air ventilation fans with frozen gel packs was an effective means to reduce participants' body heat strain. In this within-subject repeated measures study, 10 male volunteers participated in two heat-stress trials (one with the cooling vest - COOL condition, and another without - CON condition, in a randomized order) inside a climatic chamber with a controlled ambient temperature 33 °C and relative humidity (RH) 75% on an experimental day...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28183441/similar-metabolic-response-to-lower-versus-upper-body-interval-exercise-or-endurance-exercise
#13
Monique E Francois, Matthew J Graham, Evelyn B Parr, Nancy J Rehrer, Samuel J E Lucas, Stasinos Stavrianeas, James D Cotter
PURPOSE: To compare energy use and substrate partitioning arising from repeated lower- versus upper-body sprints, or endurance exercise, across a 24-h period. METHODS: Twelve untrained males (24±4 y) completed three trials in randomized order: (1) repeated sprints (five 30-s Wingate, 4.5-min recovery) on a cycle ergometer (SITLegs); (2) 50-min continuous cycling at 65% V̇O2max (END); (3) repeated sprints on an arm-crank ergometer (SITArms). Respiratory gas exchange was assessed before and during exercise, and at eight points across 22h of recovery...
March 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28177717/a-systematic-upregulation-of-nuclear-and-mitochondrial-genes-is-not-present-in-the-initial-postexercise-recovery-period-in-human-skeletal-muscle
#14
Trisha D Scribbans, Brittany A Edgett, Jacob T Bonafiglia, Brittany L Baechler, Joe Quadrilatero, Brendon J Gurd
The purpose of the current investigation was to determine if an exercise-mediated upregulation of nuclear and mitochondrial-encoded genes targeted by the transcriptional co-activator peroxisome-proliferator-activated receptor gamma co-activator-1 alpha (PGC-1α) occurs in a systematic manner following different exercise intensities in humans. Ten recreationally active males (age: 23 ± 3 years; peak oxygen uptake: 41.8 ± 6.6 mL·kg(-1)·min(-1)) completed 2 acute bouts of work-matched interval exercise at ∼73% (low; LO) and ∼100% (high; HI) of work rate at peak oxygen uptake in a randomized crossover design...
January 17, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28165398/review-and-extension-of-co%C3%A2-based-methods-to-determine-ventilation-rates-with-application-to-school-classrooms
#15
Stuart Batterman
The ventilation rate (VR) is a key parameter affecting indoor environmental quality (IEQ) and the energy consumption of buildings. This paper reviews the use of CO₂ as a "natural" tracer gas for estimating VRs, focusing on applications in school classrooms. It provides details and guidance for the steady-state, build-up, decay and transient mass balance methods. An extension to the build-up method and an analysis of the post-exercise recovery period that can increase CO₂ generation rates are presented. Measurements in four mechanically-ventilated school buildings demonstrate the methods and highlight issues affecting their applicability...
February 4, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28149383/physical-fitness-and-performance-of-polish-ice-hockey-players-competing-at-different-sports-levels
#16
Robert Roczniok, Arkadiusz Stanula, Tomasz Gabryś, Urszula Szmatlan-Gabryś, Artur Gołaś, Petr Stastny
The study aimed to determine the values of selected aerobic and anaerobic capacity variables, physical profiles, and to analyze the results of on-ice tests performed by ice-hockey players relegated to a lower league. Performance of 24 ice-hockey players competing in the top league in the 2012/2013 season was analysed to this end. In the 2013/2014 season, 14 of them still played in the top league (the control group), while 10 played in the first league (the experimental group). The study was conducted one week after the end of the playoffs in the seasons under consideration...
June 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28145006/post-exercise-recovery-regimes-blowing-hot-and-cold
#17
Jamie S McPhee, Adam P Lightfoot
No abstract text is available yet for this article.
February 1, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28134132/heart-rate-complexity-analysis-in-brugada-syndrome-during-physical-stress-testing
#18
M Calvo, P Gomis, D Romero, V Le Rolle, N Béhar, P Mabo, A Hernández
Symptoms such as ventricular arrhythmias in Brugada syndrome (BS) typically occur at rest, especially during sleep, suggesting that the autonomic nervous system (ANS) function may be relevant in the arrhythmogenesis of the disease. The aim of this work was to assess the ANS response captured by nonlinear heart rate variability (HRV) measures in 69 patients diagnosed with BS, who underwent a standardized physical stress test. Heart rate complexity (HRC) was evaluated by the power-law scaling analysis (β slope) during rest, exercise, recovery and rest post-recovery, in order to discriminate between symptomatic and asymptomatic BS patients...
February 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28116880/post-exercise-recovery-of-biological-clinical-and-metabolic-variables-after-different-temperatures-and-durations-of-cold-water-immersion-a-randomized-clinical-trial
#19
Franciele M Vanderlei, Maíra C DE Albuquerque, Aline C DE Almeida, Aryane F Machado, Jayme Netto, Carlos M Pastre
BACKGROUND: Cold water immersion (CWI) is a commonly used recuperative strategy. However there is a lack of standardization of protocols considering the duration and temperature of application of the technique and the stress model. Therefore is it important to study the issue of dose response in a specific stress model. Thus the objective was to analyze and compare the effects of CWI during intense post-exercise recovery using different durations and temperatures of immersion. METHODS: 105 male individuals were divided into five groups: one control group (CG) and four recovery groups (G1: 5' at 9±1°C; G2: 5' at 14±1oC; G3: 15' at 9±1°C; G4: 15' at 14±1°C)...
January 23, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28104750/gene-networks-in-skeletal-muscle-following-endurance-exercise-are-coexpressed-in-blood-neutrophils-and-linked-with-blood-inflammation-markers
#20
James Broadbent, Dayle Sampson, Surendran Sabapathy, Luke J Haseler, Karl-Heinz Wagner, Andrew C Bulmer, Jonathan M Peake, Oliver Neubauer
It remains incompletely understood whether there is an association between the transcriptome profiles of skeletal muscle and blood leukocytes in response to exercise or other physiological stressors. We have previously analyzed the changes in the muscle and blood neutrophil transcriptome in eight trained men before and 3, 48, and 96 h after 2 h cycling and running. Because we collected muscle and blood in the same individuals and under the same conditions, we were able to directly compare gene expression between the muscle and blood neutrophils...
April 1, 2017: Journal of Applied Physiology
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