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Exercise nutrition protein

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https://www.readbyqxmd.com/read/29903984/bolus-ingestion-of-whey-protein-immediately-post-exercise-does-not-influence-rehydration-compared-to-energy-matched-carbohydrate-ingestion
#1
Gethin H Evans, Lewis Mattin, Isabelle Ireland, William Harrison, Adora M W Yau, Victoria McIver, Tristan Pocock, Elizabeth Sheader, Lewis J James
Whey protein is a commonly ingested nutritional supplement amongst athletes and regular exercisers; however, its role in post-exercise rehydration remains unclear. Eight healthy male and female participants completed two experimental trials involving the ingestion of 35 g of whey protein (WP) or maltodextrin (MD) at the onset of a rehydration period, followed by ingestion of water to a volume equivalent to 150% of the amount of body mass lost during exercise in the heat. The gastric emptying rates of the solutions were measured using 13 C breath tests...
June 14, 2018: Nutrients
https://www.readbyqxmd.com/read/29898671/a-study-protocol-of-older-person-s-exercise-and-nutrition-study-open-a-sit-to-stand-activity-combined-with-oral-protein-supplement-effects-on-physical-function-and-independence-a-cluster-randomized-clinical-trial
#2
Helena Grönstedt, Sofia Vikström, Tommy Cederholm, Erika Franzén, Åke Seiger, Anders Wimo, Gerd Faxén-Irving, Anne-Marie Boström
BACKGROUND: Poor nutrition and age per see add to the development of sarcopenia, i.e. loss of muscle mass and strength, which contributes to increased risk of impaired activities of daily living (ADL) and reduced independence. Protein deficiency plays an important role in the development of sarcopenia. In order to increase the muscle mass protein intake should be combined with physical exercise. A daily physical activity, the sit-to-stand exercise, has been proven to decrease older persons' dependence in ADL...
June 7, 2018: BMC Geriatrics
https://www.readbyqxmd.com/read/29889151/energy-availability-macronutrient-intake-and-nutritional-supplementation-for-improving-exercise-performance-in-endurance-athletes
#3
Gretchen A Casazza, Ashley P Tovar, Christine E Richardson, Angela N Cortez, Brian A Davis
Endurance athletes use nutritional guidelines and supplements to improve exercise performance and recovery. However, use is not always based on scientific evidence of improved performance, which type of athlete would benefit most, or the optimal dose and timing of a particular supplement. Health professionals that give advice to athletes need to target their recommendations on the energy systems and muscle fiber types used for the athlete's sporting event, the goal of the training block, the time of the competitive season, and the characteristics and food preferences of the individual athlete...
June 2018: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29878269/ingestion-of-a-multi-ingredient-supplement-does-not-alter-exercise-induced-satellite-cell-responses-in-older-men
#4
Tim Snijders, Kirsten E Bell, Joshua P Nederveen, Nelson I Saddler, Nicole Mazara, Dinesh A Kumbhare, Stuart M Phillips, Gianni Parise
Background: Nutritional supplementation can have beneficial effects on body composition, strength, and function in older adults. However, whether the response of satellite cells can be altered by nutritional supplementation in older adults remains unknown. Objective: We assessed whether a multi-ingredient protein-based supplement taken over a prolonged period of time could alter the muscle satellite cell response after exercise in older men. Methods: Twenty-seven older men [mean ± SD age: 73 ± 1 y; mean ± SD body mass index (kg/m2): 28 ± 1] participated in a randomized double-blind experiment...
June 1, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29785098/sarcopenia-assessment-of-disease-burden-and-strategies-to-improve-outcomes
#5
REVIEW
Ilaria Liguori, Gennaro Russo, Luisa Aran, Giulia Bulli, Francesco Curcio, David Della-Morte, Gaetano Gargiulo, Gianluca Testa, Francesco Cacciatore, Domenico Bonaduce, Pasquale Abete
Life expectancy is increasing worldwide, with a resultant increase in the elderly population. Aging is characterized by the progressive loss of skeletal muscle mass and strength - a phenomenon called sarcopenia. Sarcopenia has a complex multifactorial pathogenesis, which involves not only age-related changes in neuromuscular function, muscle protein turnover, and hormone levels and sensitivity, but also a chronic pro-inflammatory state, oxidative stress, and behavioral factors - in particular, nutritional status and degree of physical activity...
2018: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/29783205/individual-approach-to-the-treatment-of-obese-copd-patients-can-reduce-anthropometric-indicators-the-level-of-systemic-inflammation-and-improve-the-quality-of-life
#6
Lesia V Savchenko, Igor P Kaidashev
OBJECTIVE: Introduction: Chronic obstructive pulmonary disease (COPD) and obesity are major causes of morbidity and mortality worldwide, and according to current estimates, the global burden of these conditions will be even greater. The basis for COPD treatment is bronchodilator therapy and non-pharmacotherapy approaches, such as respiratory rehabilitation and dietary counseling. The aim of this study was to assess the impact of lifestyle modification on anthropometric indices, markers of systemic inflammation, quality of life in patients with COPD and obesity...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29764464/daytime-and-nighttime-casein-supplements-similarly-increase-muscle-size-and-strength-in-response-to-resistance-training-earlier-in-the-day-a-preliminary-investigation
#7
Jordan M Joy, Roxanne M Vogel, K Shane Broughton, Urszula Kudla, Nathaniel Y Kerr, Jason M Davison, Robert E C Wildman, Nancy M DiMarco
BACKGROUND: Casein protein consumed before sleep has been suggested to offer an overnight supply of exogenous amino acids for anabolic processes. The purpose of this study was to compare supplemental casein consumed earlier in the day (DayTime, DT) versus shortly before bed (NightTime, NT) on body composition, strength, and muscle hypertrophy in response to supervised resistance training. METHODS: Thirteen males participated in a 10-week exercise and dietary intervention while receiving 35 g casein daily...
May 15, 2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29757053/applying-a-low-fodmap-dietary-intervention-to-a-female-ultra-endurance-runner-with-irritable-bowel-syndrome-during-a-multi-stage-ultra-marathon
#8
Stephanie K Gaskell, Ricardo J S Costa
Malabsorption of Fermentable Oligo- Di- and Mono-saccharides and Polyols (FODMAPs) in response to prolonged exercise may increase incidence of upper- and lower-gastrointestinal symptoms (GIS), which are known to impair exercise performance. The case-study aimed to explore the impact of a low-FODMAP diet on exercise-associated GIS in a female ultra-endurance runner diagnosed with irritable bowel syndrome (IBS), competing in a six-day 186.7 km mountainous multi-stage ultra-marathon (MSUM). IBS symptom severity score at diagnosis was 410 and following a low-FODMAP diet (3...
May 14, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29750251/effect-of-aerobic-exercise-training-and-essential-amino-acid-supplementation-for-24-weeks-on-physical-function-body-composition-and-muscle-metabolism-in-healthy-independent-older-adults-a-randomized-clinical-trial
#9
Melissa M Markofski, Kristofer Jennings, Kyle L Timmerman, Jared M Dickinson, Christopher S Fry, Michael S Borack, Paul T Reidy, Rachel R Deer, Amanda Randolph, Blake B Rasmussen, Elena Volpi
Background: Essential amino acids (EAA) and aerobic exercise (AE) acutely and independently stimulate skeletal muscle protein anabolism in older adults. Objective: In this Phase 1, double blind, placebo controlled, randomized clinical trial, we determined if chronic EAA supplementation, AE training, or a combination of the two interventions could improve muscle mass and function by stimulating muscle protein synthesis. Methods: We phone screened 971, enrolled 109, and randomized 50 independent, low-active, non-frail, non-diabetic older adults (age 72±1 yrs)...
May 10, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29731703/metabolic-syndrome-and-neuroprotection
#10
REVIEW
Melisa Etchegoyen, Mariana H Nobile, Francisco Baez, Barbara Posesorski, Julian González, Néstor Lago, José Milei, Matilde Otero-Losada
Introduction: Over the years the prevalence of metabolic syndrome (MetS) has drastically increased in developing countries as a major byproduct of industrialization. Many factors, such as the consumption of high-calorie diets and a sedentary lifestyle, bolster the spread of this disorder. Undoubtedly, the massive and still increasing incidence of MetS places this epidemic as an important public health issue. Hereon we revisit another outlook of MetS beyond its classical association with cardiovascular disease (CVD) and Diabetes Mellitus Type 2 (DM2), for MetS also poses a risk factor for the nervous tissue and threatens neuronal function...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29729825/a-randomized-controlled-trial-of-an-intensive-nutrition-intervention-versus-standard-nutrition-care-to-avoid-excess-weight-gain-after-kidney-transplantation-the-intent-trial
#11
Cordula K Henggeler, Lindsay D Plank, Kristin J Ryan, Emily L Gilchrist, Jessie M Casas, Lyn E Lloyd, Laura E Mash, Sandra L McLellan, Jennifer M Robb, Michael G Collins
OBJECTIVE: Excessive weight gain is common after kidney transplantation and increases cardiovascular risk. The aim of this randomized controlled trial was to determine whether an intensive nutrition and exercise intervention delivered alongside routine post-transplant care would reduce post-transplant weight gain. DESIGN: Single-blind, randomized controlled trial. SUBJECTS AND SETTING: Adult kidney transplant recipients at a regional transplant center were recruited during routine outpatient clinic visits in the first month after transplant...
May 2, 2018: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29713249/effects-of-n-3-fatty-acids-and-exercise-on-oxidative-stress-parameters-in-type-2-diabetic-a-randomized-clinical-trial
#12
Ana Paula Trussardi Fayh, Katiuce Borges, Giovani Santos Cunha, Mauricio Krause, Ricardo Rocha, Paulo Ivo Homem de Bittencourt, José Cláudio Fonseca Moreira, Rogério Friedman, Juliane da Silva Rossato, Jõao Roberto Fernandes, Alvaro Reischak-Oliveira
Background: The relationship between diabetes and oxidative stress has been previously reported. Exercise represents a useful non-pharmacological strategy for the treatment in type 2 diabetic (T2DM) patients, but high intensity exercise can induce a transient inflammatory state and increase oxidative stress. Nutritional strategies that may contribute to the reduction of oxidative stress induced by acute exercise are necessary. The aim of this study was to examine if n-3 PUFA supplementation intervention can attenuate the inflammatory response and oxidative stress associated with high intensity exercise in this population...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29698742/age-and-the-effect-of-exercise-nutrition-and-cognitive-training-on-oxidative-stress-the-vienna-active-aging-study-vaas-a-randomized-controlled-trial
#13
Bernhard Franzke, Barbara Schober-Halper, Marlene Hofmann, Stefan Oesen, Anela Tosevska, Trine Henriksen, Henrik E Poulsen, Eva-Maria Strasser, Barbara Wessner, Karl-Heinz Wagner
The purpose of this study was to investigated the effect of age - over or under life-expectancy (LE) - on six months resistance training alone or combined with a nutritional supplement, and cognitive training by analyzing markers for oxidative stress and antioxidant defense in institutionalized elderly, living in Vienna. Three groups (n = 117, age = 83.1 ± 6.1 years) - resistance training (RT), RT combined with protein and vitamin supplementation (RTS) or cognitive training (CT) - performed two guided training sessions per week for six months...
June 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29621580/use-of-nutritional-supplements-contaminated-with-banned-doping-substances-by-recreational-adolescent-athletes-in-athens-greece
#14
Konstantinos Tsarouhas, Nassia Kioukia-Fougia, Petros Papalexis, Aristidis Tsatsakis, Dimitrios Kouretas, Flora Bacopoulou, Christina Tsitsimpikou
Although the use of nutritional supplements by adult athletes has been extensively studied, information on supplements consumption by adolescent athletes is still limited. The present study reports on the use of nutritional supplements contaminated with banned doping substances among 170 recreational adolescent athletes from eleven, randomly selected, gym centres, in Athens, Greece. Nutritional supplements consumption was reported by almost 60% of the study population, with proteins/amino acids and vitamins being the most popular...
May 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29607218/nutritional-ketosis-and-mitohormesis-potential-implications-for-mitochondrial-function-and-human-health
#15
REVIEW
Vincent J Miller, Frederick A Villamena, Jeff S Volek
Impaired mitochondrial function often results in excessive production of reactive oxygen species (ROS) and is involved in the etiology of many chronic diseases, including cardiovascular disease, diabetes, neurodegenerative disorders, and cancer. Moderate levels of mitochondrial ROS, however, can protect against chronic disease by inducing upregulation of mitochondrial capacity and endogenous antioxidant defense. This phenomenon, referred to as mitohormesis, is induced through increased reliance on mitochondrial respiration, which can occur through diet or exercise...
2018: Journal of Nutrition and Metabolism
https://www.readbyqxmd.com/read/29580989/amp-activated-protein-kinase-stabilizes-foxo3-in-primary-myotubes
#16
Anthony M J Sanchez, Robin Candau, Henri Bernardi
AMP-activated protein kinase (AMPK) is a critical enzyme in conditions of cellular energy deficit such as exercise, hypoxia or nutritional stress. AMPK is well known to regulate protein degradation pathways notably through FOXO-related axis. In this study, we investigated the implication of AMPK activation in FOXO3 expression and stability in skeletal muscle primary myotubes. First, time course and dose response studies revealed optimal AICAR treatment duration and dose in skeletal muscle cells. Then, experiments with cycloheximide treatment of primary myotubes highlighted that AICAR infusion extends FOXO3 protein half-life...
May 15, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29563041/exercise-alone-or-combined-with-dietary-supplements-for-sarcopenic-obesity-in-community-dwelling-older-people-a-systematic-review-of-randomized-controlled-trials
#17
REVIEW
Antonio Martínez-Amat, Agustín Aibar-Almazán, Raquel Fábrega-Cuadros, David Cruz-Díaz, José D Jiménez-García, Faustino R Pérez-López, Alexander Achalandabaso, Rafael Barranco-Zafra, Fidel Hita-Contreras
Sarcopenic obesity (SO) represents a major public health concern. Physical activity has been recommended to minimize functional decline in the elderly and it may also be relevant to SO management. The purpose of this systematic review of randomized controlled trials (RCTs) was to investigate the effects of different exercise modalities, alone or combined with nutritional supplementation, on body composition, muscle strength and physical function in healthy community-dwelling older adults with SO. A literature search was performed using the PubMed, SCOPUS, CINAHL and Cochrane Plus databases...
April 2018: Maturitas
https://www.readbyqxmd.com/read/29556158/calorie-restriction-regime-enhances-physical-performance-of-trained-athletes
#18
Victoria Pons, Joan Riera, Xavier Capó, Miquel Martorell, Antoni Sureda, Josep A Tur, Franchek Drobnic, Antoni Pons
Background: Caloric restriction induces mitochondrial biogenesis and improves physical fitness in rodents. We aimed to provide evidence of how caloric restriction affects the body composition and physical performance of trained athletes and to evaluate the possible impact of an every-other-day feeding diet on nutritional deficiencies of micronutrients and essential fatty acids. Methods: The study was performed with 12 healthy male athletes by carrying out a 33% caloric restriction with respect to their usual diet...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29554987/impact-of-medication-on-protein-and-amino-acid-metabolism-in-the-elderly-the-sulfur-amino-acid-and-paracetamol-case
#19
Carole Mast, Dominique Dardevet, Isabelle Papet
The optimisation of nutritional support for the growing number of older individuals does not usually take into account medication. Paracetamol (acetaminophen; APAP) is the first intention treatment of chronic pain that is highly prevalent and persistent in the elderly. Detoxification of APAP occurs in the liver and utilises sulfate and glutathione (GSH), both of which are issued from cysteine (Cys), a conditionally indispensable amino acid. The detoxification-induced siphoning of Cys could reduce the availability of Cys for skeletal muscle...
March 20, 2018: Nutrition Research Reviews
https://www.readbyqxmd.com/read/29544062/ingestion-of-carbohydrate-or-carbohydrate-plus-protein-does-not-enhance-performance-during-endurance-exercise-a-randomized-cross-over-placebo-controlled-clinical-trial
#20
Débora Finger, Fábio Juner Lanferdini, Juliano Boufleur Farinha, Clarissa Müller Brusco, Lucas Helal, Francesco Pinto Boeno, Eduardo Lusa Cadore, Ronei Silveira Pinto
INTRODUCTION: Protein (PRO) combined with a carbohydrate (CHO) beverage may have an ergogenic effect on endurance performance. However, evidence regarding its efficacy on similar conditions to athletes' race day is still lacking. OBJECTIVE: To compare the effect of three different nutritional supplementation strategies on performance and muscle recovery in a duathlon protocol. METHODS: , 13 male athletes (29.7 ± 7.7 years) participated in three simulated Olympic-distance duathlons under three different, randomly assigned, supplementation regimens: carbohydrate drink (CHO, 75 g); isocaloric CHO plus protein drink (CHO+PRO, 60...
March 15, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
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