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https://www.readbyqxmd.com/read/28938473/the-role-of-episodic-postprandial-peptides-in-exercise-induced-compensatory-eating
#1
Catherine Gibbons, John E Blundell, Phillipa Caudwell, Dominic-Luc Webb, Per M Hellström, Erik Näslund, Graham Finlayson
Purpose: Prolonged physical activity gives rise to variable degrees of body weight and fat loss, and is associated with variability in appetite control (hunger and energy intake). Whether these effects are modulated by postprandial 'episodic' peptides is unclear. We examined the role of postprandial peptide response in compensatory eating during 12-weeks aerobic exercise and in response to high (HFLC) and low fat (LFHC) meals. Methods: 32 overweight/obese individuals - 16 completed 12-weeks aerobic exercise and 16 were age- and BMI-matched non-exercising controls...
August 18, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28937309/metabolic-and-hormonal-responses-to-different-resistance-training-systems-in-elderly-men
#2
Marcos R Paunksnis, Alexandre L Evangelista, Cauê V La Scala Teixeira, Gustavo Alegretti João, Rafael M Pitta, Angelica C Alonso, Aylton Figueira, Andrey Jorge Serra, Julien S Baker, Brad Jon Schoenfeld, Danilo S Bocalini
OBJECTIVE: To compare acute and sub-acute responses in hormonal profile and metabolic parameters in elderly people who participated in two methods of strength training (ST) with equalized loads. METHODS AND MATERIALS: A total of 12 elder individuals (65 ± 3 years) were randomly assigned to two training methods: constant intensity (CI, 3 sets of 10 repetitions with 75% of 1RM) and variable intensity (VI, 1st set: 12 repetitions at 67% of 1RM > 2nd set: 10 repetitions at 75% of 1RM and 3rd set: 8 repetitions at 80% of 1RM)...
September 22, 2017: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
https://www.readbyqxmd.com/read/28935828/daily-resistance-type-exercise-stimulates-overall-muscle-protein-synthesis-rates-in-vivo-in-young-males
#3
Andrew M Holwerda, Kevin J M Paulussen, Maarten Overkamp, Joey S J Smeets, Annemie P Gijsen, Joy P B Goessens, Lex B Verdijk, Luc J C van Loon
BACKGROUND: Resistance-type exercise increases muscle protein synthesis rates during acute post-exercise recovery. The impact of resistance-type exercise training on (local) muscle protein synthesis rates under free living conditions on a day-to-day basis remains unclear. OBJECTIVE: To determine the impact of daily unilateral resistance-type exercise on local myofibrillar protein synthesis rates during a three-day period. METHODS: Twelve healthy young males (22±1 y) were recruited to participate in this study where they performed daily, unilateral resistance-type exercise during a three-day intervention period...
September 21, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28935827/short-term-dietary-curcumin-supplementation-reduces-gastrointestinal-barrier-damage-and-physiological-strain-responses-during-exertional-heat-stress
#4
Mandy C Szymanski, Trevor L Gillum, Lacey M Gould, David S Morin, Matthew R Kuennen
PURPOSE: This work investigated the effect of 3d of 500mg/d dietary curcumin supplementation on gastrointestinal (GI) barrier damage and systems-physiology responses to exertional heat stress in non-heat acclimated humans. METHODS: Eight participants ran (65%VO2max) for 60min in a Darwin® chamber (37°C/25%RH) two times (Curcumin/Placebo). Intestinal fatty acid binding protein (I-FABP) and associated pro-inflammatory (MCP-1, TNFα, IL-6) and anti-inflammatory (IL-1RA, IL-10) cytokines were assayed from plasma collected before (Pre), after (Post), 1hr (1-Post), and 4hrs after (4-Post) exercise...
September 21, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28930877/the-impact-of-exercise-induced-muscle-damage-on-performance-test-outcomes-in-elite-female-basketball-players
#5
Kenji Doma, Anthony Leicht, Wade Sinclair, Moritz Schumann, Felipe Damas, Dean Burt, Carl Woods
The purpose of this study was two-fold. First, to examine the impact exercise-induced muscle damage (EIMD) on physical fitness qualities following a basketball-specific training session. Secondly, to determine the reproducibility of the sport-specific performance measures in elite female basketball players. Ten elite female basketball players (age 25.6 ± 4.5 years; height 1.8 ± 0.7m; body mass 76.7 ± 8.3kg) undertook a 90-minute training session involving repeated jumping, sprinting and game-simulated training...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28930874/the-effectiveness-of-fish-oil-supplementation-in-attenuating-exercise-induced-muscle-damage-in-females-during-mid-follicular-and-mid-luteal-menstrual-phases
#6
Sarah K McKinley-Barnard, Thomas L Andre, Josh J Gann, Paul S Hwang, Darryn S Willoughby
The purpose of this study was to determine if the differences in estrogen levels during the female menstrual cycle and fish oil supplementation would attenuate eccentric exercise-induced muscle damage (EIMD) and delayed onset muscle soreness (DOMS). In a double-blind fashion, 22 physically-active females (20.9 ± 1.4 years, 63.5 ± 9.0 kg, 165.2 ± 7.5 cm) were randomly assigned to ingest either 6 grams of fish oil (n = 11) or placebo (n = 11) daily for 21 days. Participants underwent an eccentric exercise bout of the knee extensors on two occasions during the mid-follicular (MF) and mid-luteal (ML) phases of the 28-day menstrual cycle...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28930862/an-innovative-ergometer-to-measure-neuromuscular-fatigue-immediately-after-cycling
#7
Douglas Doyle-Baker, John Temesi, Mary E Medysky, Robert J Holash, Guillaume Y Millet
PURPOSE: When assessing neuromuscular fatigue (NMF) from dynamic exercise using large muscle mass (e.g. cycling), most studies have delayed measurement for 1-3 min after task failure. This study aimed to determine the reliability of an innovative cycling ergometer permitting the start of fatigue measurement within 1 s after cycling. METHODS: Twelve subjects participated in two experimental sessions. Knee-extensor NMF was assessed by electrical nerve and transcranial magnetic stimulation with both a traditional chair set-up (PRE and POST-Chair, 2 min post-exercise) and the new cycling ergometer (PRE, every 3 min during incremental exercise and POST-Bike, at task failure)...
September 19, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28922683/reproducibility-reliability-and-agreement-of-post-exercise-hypotension
#8
Rafael Yokoyama Fecchio, Marcel Chehuen, Leandro Campos Brito, Tiago Peçanha, Andréia Cristiane Carrenho Queiroz, Claudia Lucia de Moraes Forjaz
This study determined the reproducibility of post-exercise hypotension (PEH) calculated by the following methods: PEH_I=post-exercise BP - pre-exercise BP; PEH_II=post-exercise BP - post-control BP; and PEH_III=[(post-exercise BP - pre-exercise BP)-(post-control BP - pre-control BP)]. Twenty-five participants underwent four sessions divided in two blocks (test and retest). Each block consisted of one exercise and one control session. BP pressure was measured before and after the interventions. The presence of systematic error (paired t-tests), reliability [intraclass coefficient correlation (ICC)], and agreement [typical error (TE) and minimal detectable difference (MDD)] were evaluated...
September 18, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28919891/moderate-intensity-exercise-affects-gut-microbiome-composition-and-influences-cardiac-function-in-myocardial-infarction-mice
#9
Zuheng Liu, Hai-Yue Liu, Haobin Zhou, Qiong Zhan, Wenyan Lai, Qingchun Zeng, Hao Ren, Dingli Xu
Physical exercise is commonly regarded as protective against cardiovascular disease (CVD). Recent studies have reported that exercise alters the gut microbiota and that modification of the gut microbiota can influence cardiac function. Here, we focused on the relationships among exercise, the gut microbiota and cardiac function after myocardial infarction (MI). Four-week-old C57BL/6J mice were exercised on a treadmill for 4 weeks before undergoing left coronary artery ligation. Cardiac function was assessed using echocardiography...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28919842/international-society-of-sports-nutrition-position-stand-nutrient-timing
#10
REVIEW
Chad M Kerksick, Shawn Arent, Brad J Schoenfeld, Jeffrey R Stout, Bill Campbell, Colin D Wilborn, Lem Taylor, Doug Kalman, Abbie E Smith-Ryan, Richard B Kreider, Darryn Willoughby, Paul J Arciero, Trisha A VanDusseldorp, Michael J Ormsbee, Robert Wildman, Mike Greenwood, Tim N Ziegenfuss, Alan A Aragon, Jose Antonio
The International Society of Sports Nutrition (ISSN) provides an objective and critical review regarding the timing of macronutrients in reference to healthy, exercising adults and in particular highly trained individuals on exercise performance and body composition. The following points summarize the position of the ISSN:Nutrient timing incorporates the use of methodical planning and eating of whole foods, fortified foods and dietary supplements. The timing of energy intake and the ratio of certain ingested macronutrients may enhance recovery and tissue repair, augment muscle protein synthesis (MPS), and improve mood states following high-volume or intense exercise...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28917232/compressed-food-with-added-functional-oligopeptides-improves-performance-during-military-endurance-training
#11
Zhi-Qiang Zheng, Zhan-Hui Geng, Jia-Xi Liu, Shun-Tang Guo
BACKGROUND AND OBJECTIVES: Oligosaccharide or oligopeptide supplementation may have a significant impact on endurance performance. This study evaluated the effects of adding maltooligosaccharides (MO) or soy oligopeptides (SO) to compressed food (CF) on the physical response of soldiers to daily military training. METHODS AND STUDY DESIGN: Twelve soldiers were randomized to four diet groups: regular meals, CF, CFMO, and CFSO (crossover design). They participated in exercise tests including 90 minutes running at 55-65% VO2max and exhaustive running...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28916822/ampk-phosphorylation-of-ulk1-is-required-for-targeting-of-mitochondria-to-lysosomes-in-exercise-induced-mitophagy
#12
Rhianna C Laker, Joshua C Drake, Rebecca J Wilson, Vitor A Lira, Bevan M Lewellen, Karen A Ryall, Carleigh C Fisher, Mei Zhang, Jeffrey J Saucerman, Laurie J Goodyear, Mondira Kundu, Zhen Yan
Mitochondrial health is critical for skeletal muscle function and is improved by exercise training through both mitochondrial biogenesis and removal of damaged/dysfunctional mitochondria via mitophagy. The mechanisms underlying exercise-induced mitophagy have not been fully elucidated. Here, we show that acute treadmill running in mice causes mitochondrial oxidative stress at 3-12 h and mitophagy at 6 h post-exercise in skeletal muscle. These changes were monitored using a novel fluorescent reporter gene, pMitoTimer, that allows assessment of mitochondrial oxidative stress and mitophagy in vivo, and were preceded by increased phosphorylation of AMP activated protein kinase (Ampk) at tyrosine 172 and of unc-51 like autophagy activating kinase 1 (Ulk1) at serine 555...
September 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28912650/the-effects-combining-cryocompression-therapy-following-an-acute-bout-of-resistance-exercise-on-performance-and-recovery
#13
William H DuPont, Brek J Meuris, Vincent H Hardesty, Emily C Barnhart, Landon H Tompkins, Morricia J P Golden, Clayton J Usher, Paul A Spence, Lydia K Caldwell, Emily M Post, Matthew K Beeler, William J Kraemer
Compression and cold therapy used separately have shown to reduce negative effects of tissue damage. The combining compression and cold therapy (cryocompression) as a single recovery modality has yet to be fully examined. To examine the effects of cryocompression on recovery following a bout of heavy resistance exercise, recreationally resistance trained men (n =16) were recruited, matched, and randomly assigned to either a cryocompression group (CRC) or control group (CON). Testing was performed before and then immediately after exercise, 60 minutes, 24 hours, and 48 hours after a heavy resistance exercise workout (barbell back squats for 4 sets of 6 reps at 80% 1RM, 90 sec rest between sets, stiff legged deadlifts for 4 sets of 8 reps at 1...
September 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28910538/muscular-contraction-frequency-does-not-affect-plasma-homocysteine-concentration-in-response-to-energy-expenditure-and-intensity-matched-acute-exercise-in-sedentary-males
#14
Natalia Úbeda, Brian P Carson, Ángela García-González, Antonio Aguilar-Ros, Ángel Enrique Díaz-Martínez, Rafael Venta, Nicolás Terrados, Donal J O Gorman, Eduardo Iglesias-Gutiérrez
Acute exercise seems to increase total plasma homocysteine (tHcy). That is related to cardiovascular risk, therefore it is important to understand the determinants of its response to all types of exercise. The aim of this study was to examine the impact of cycling at two different rates of muscle contraction on the complete tHcy kinetics. Eight young sedentary males were required to complete two isocaloric (400 kcal) acute exercise trials at 50% VO2peak on separate occasions at 50 or 80 revolutions per minute (rpm)...
September 14, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28902927/bradykinin-insulin-and-glycemia-responses-to-exercise-performed-above-and-below-lactate-threshold-in-individuals-with-type-2-diabetes
#15
R Y Asano, R A V Browne, M M Sales, G Arsa, J F V N Moraes, H J Coelho-Júnior, M R Moraes, I Oliveira-Silva, S E Atlas, J E Lewis, H G Simões
The aim of this study was to analyze the acute responses of bradykinin, insulin, and glycemia to exercise performed above and below lactate threshold (LT) in individuals with type 2 diabetes mellitus (T2D). Eleven participants with a diagnosis of T2D randomly underwent three experimental sessions 72 h apart: 1) 20 min of exercise performed at 120% of LT (120%LT), 2) 20 min of exercise performed at 80% of LT (80%LT), and 3) 20 min of control session. Blood glucose was analyzed before, during, and at 45 min post-exercise...
September 12, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28902112/the-efficacy-of-repeated-cold-water-immersion-on-recovery-following-a-simulated-rugby-union-protocol
#16
Sean Barber, Pattison John, Freddy Brown, Jessica Hill
Training and athletic competition frequently results in exercise induced muscle damage (EIMD). The purpose of this study was to investigate the efficacy of repeated cold water immersion (CWI) on recovery following a simulated rugby union match. Sixteen male, club level rugby players were matched for body mass and randomly assigned to either a CWI group or control (CON) group. Following the simulated rugby match the CWI group underwent 2 x 5 min immersions at a temperature of 10°C separated by 2.5 min seated at room temperature, whilst the CON group remained seated for 15 min...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28899858/redd1-induction-regulates-the-skeletal-muscle-gene-expression-signature-following-acute-aerobic-exercise
#17
Bradley S Gordon, Jennifer L Steiner, Michael L Rossetti, Shuxi Qiao, Leif W Ellisen, Subramaniam S Govindarajan, Alexey M Eroshkin, Dave L Williamson, Paul M Coen
The metabolic stress placed on skeletal muscle by aerobic exercise promotes acute and long-term health benefits in part through changes in gene expression. However, the transducers that mediate altered gene expression signatures have not been completely elucidated. Regulated in Development and DNA Damage 1 (REDD1) is a stress-induced protein whose expression is transiently increased in skeletal muscle following acute aerobic exercise. However, the role of this induction remains unclear. Because REDD1 altered gene expression in other model systems, we sought to determine whether REDD1 induction following acute exercise altered the gene expression signature in muscle...
September 12, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28892884/effect-of-metaboreflex-on-cardiovascular-system-in-subjects-of-metabolic-syndrome
#18
Pramita Dubey, Sunita Tiwari, Manish Bajpai, Kalpana Singh, Praveen Jha
INTRODUCTION: Metaboreflex is a reflex in which muscle receptors send signals regarding metabolic (metabolites accumulation like lactic acid, potassium, adenosine) conditions of the muscles to nucleus tractus solitarius via afferent III and IV fibres to cause haemodynamic adjustments in order to regulate blood flow on the basis of the status of contracting muscle. Dysregulation in its mechanism in metabolic syndrome is demonstrated. AIM: To study the effect of metaboreflex by both isometric and rhythmic handgrip exercise on CVS parameters {Blood Pressure (BP), Cardiac Output (CO) and Systemic Vascular Resistance (SVR)} in subjects of metabolic syndrome...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28890521/effect-of-burdock-extract-on-physical-performance-and-physiological-fatigue-in-mice
#19
Wen-Chyuan Chen, Yi-Ju Hsu, Mon-Chien Lee, Hua Shuai Li, Chun-Sheng Ho, Chi-Chang Huang, Fu-An Chen
Burdock (BD) is a common vegetable with many pharmacological properties. However, few studies have examined the effect of BD on exercise performance and physical fatigue. We aimed to evaluate the potential beneficial effects of BD on fatigue and ergogenic functions following physical challenge in mice. METHODS: Male ICR mice were divided into four groups to receive either vehicle, or BD at 348.5, 697 or 1,742.5 mg/kg/day, by daily oral gavage for 4 weeks. Exercise performance and fatigue were evaluated from forelimb grip strength, exhaustive swimming time, and post-exercise levels of physical fatigue-related biomarkers serum lactate, ammonia, glucose, and creatine kinase (CK)...
September 11, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28887241/non-invasive-peripheral-artery-disease-screening-tools-a-deficient-knowledge-among-french-vascular-residents-from-four-medical-schools
#20
O Stivalet, L Omarjee, S Chaudru, C Hoffmann, L Bressollette, K P Cohoon, V Jaquinandi, G Mahe
BACKGROUND: Ankle-brachial index (ABI) at rest, Post-exercise ABI and Toe-Brachial Index (TBI) are essential diagnostic tools recommended for peripheral artery disease (PAD) diagnosis. Our study investigates the level of knowledge on these three tests among vascular medicine residents from four French medical schools in France. PATIENTS AND METHODS: We included nineteen vascular medicine residents in a cross-sectional study. During an annual obligatory seminar, all residents accepted to fill three questionnaires concerning knowledge about these three tests...
September 5, 2017: Annals of Vascular Surgery
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