Download or read book Changes in Muscle Protein Synthesis Following Resistance Exercise written by Alan Chesley and published by . This book was released on 1991 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Protein and Amino Acids in Sustaining and Enhancing Performance written by Institute of Medicine and published by National Academies Press. This book was released on 1999-09-15 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is a commonly held belief that athletes, particularly body builders, have greater requirements for dietary protein than sedentary individuals. However, the evidence in support of this contention is controversial. This book is the latest in a series of publications designed to inform both civilian and military scientists and personnel about issues related to nutrition and military service. Among the many other stressors they experience, soldiers face unique nutritional demands during combat. Of particular concern is the role that dietary protein might play in controlling muscle mass and strength, response to injury and infection, and cognitive performance. The first part of the book contains the committee's summary of the workshop, responses to the Army's questions, conclusions, and recommendations. The remainder of the book contains papers contributed by speakers at the workshop on such topics as, the effects of aging and hormones on regulation of muscle mass and function, alterations in protein metabolism due to the stress of injury or infection, the role of individual amino acids, the components of proteins, as neurotransmitters, hormones, and modulators of various physiological processes, and the efficacy and safety considerations associated with dietary supplements aimed at enhancing performance.
Download or read book The Effects of Carbohydrate and Amino Acids on Muscle Protein Synthesis After Acute Resistance Exercise and Muscle Adaptation Following Chronic Resistance Training written by Wanyi Wang (M.S. in Kinesiology) and published by . This book was released on 2016 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resistance exercise (RE) is purported to induce muscle protein accretion primarily by stimulating muscle protein synthesis (MPS), with its effect potentiated by providing a protein or amino acid (AA) supplement post exercise. Glutamine, a conditionally essential AA, is increasingly recommended to improve exercise performance, but it is poorly soluble and unstable in sports drinks. This limitation can be overcome by combining L-glutamine with L-alanine to form a dipeptide (AlaGln). The first study demonstrated that AlaGln supplementation post resistance exercise significantly reduced the phosphorylation of AMPK and NF-kB p65 without activating intracellular signals for MPS. This study also showed that whey protein (WP) activated the mTOR signaling pathways without affecting signaling proteins that controls muscle protein breakdown (MPB). The results provide indirect evidence that AlaGln blocks MPB via suppressing the activation of AMPK-FOXO3A and NF-kB p65, while WP promotes MPS. Recent research suggests that adding carbohydrate (CHO) to a protein supplement post exercise can produce greater protein accretion and subsequently increase the magnitude of resistance training adaptation relative to protein supplementation alone. Early studies from our laboratory found that co-ingestion of CHO and protein, as compared with CHO or protein intake individually, had a greater effect on the activation of anabolic signaling proteins. However, the effect of CHO plus protein on MPS and muscle adaptation is controversial. The second study demonstrated that adding CHO to a protein supplement (CP) accelerated MPS via activating the mTOR-signaling pathway in comparison with placebo (PLA) and WP during early exercise recovery, but CP did not affect signaling proteins that regulate MPB. The third study found that CP enhanced muscle strength relative to PLA and WP. The greater strength development in CP appeared due to increased myofibrillar protein content. Increased muscle hypertrophy occurred without an increase in myonuclei suggesting satellite cell activation was not required for muscle fiber development. Taken together, the results of this series of studies suggest that 1) AlaGln inhibits MPB following acute RE; 2) Adding CHO to a protein supplement accelerates muscle recovery by stimulating MPS, and increases the magnitude of muscle strength by accumulating more myofibrillar protein in comparison with PLA and WP.
Download or read book Nutrition and Performance in Sport written by Christophe Hausswirth and published by INSEP éditions. This book was released on 2015-09-11 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Comment bien récupérer au moyen de l’alimentation ? Comment se nourrir lors d’un voyage à l’étranger ou lors des stages en altitude ? Que faire pour préserver son capital osseux ? De quelle manière concilier ramadan et entraînement ? Comment perdre du poids intelligemment? Quels sucres ? Quelles protéines ? En matière de nutrition, les questions que se posent les sportifs et leurs entraîneurs sont nombreuses, et toutes méritent des réponses claires ! Telle est l’ambition première de cet ouvrage qui a réuni les plus grands spécialistes mondiaux de la nutrition sportive afin d’apporter les éclairages tant attendus... L’auteur, Christophe Hausswirth, nous convie à découvrir deux parties complémentaires. Dans la première, il a pu approcher d’éminents spécialistes internationaux en nutrition du sport qui témoignent des avancées significatives dans leur discipline et font part des travaux les plus récents. Dans la seconde, les thèmes essentiels sont abordés par un jeu de questions/réponses – que complètent des fiches pratiques et de délicieuses recettes élaborées par le chef Alain Despinois, de chez Lenôtre ! C’est un véritable livre de référence que nous propose ces chercheurs émérites
Download or read book Sarcopenia written by Alfonso J. Cruz-Jentoft and published by John Wiley & Sons. This book was released on 2021-06-15 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: SARCOPENIA An in-depth examination of sarcopenia’s underexplored yet widespread impact within the field of gerontology Sarcopenia is common in older men and women, and yet awareness of its clinical relevance is still relatively low. Only formally included in the International Classification of Diseases in 2016, the condition may impact societies with serious health-related and financial consequences unless consistent, effective methods of identification and management are adopted. This second edition of Sarcopenia provides geriatricians and other healthcare professionals with a revised and expanded examination of this understudied and underdiagnosed condition. Edited by two leading authorities on the subject, it covers the epidemiology and diagnosis of sarcopenia, as well as treatment options and possible prevention strategies. Eight newly written chapters build upon existing knowledge with fresh data on topics including sarcopenia’s biomarkers and its impact on the healthcare economy. This important text: Defines sarcopenia and explains its clinical relevance Covers all recent scientific evidence Outlines treatment options Considers prevention strategies Discusses sarcopenia as a public health priority Features eight new chapters covering topics such as sarcopenia’s clinical management, its biomarkers, and its financial impact Containing vital information for clinicians and other professionals working in geriatric care, nursing homes, nutrition, cancer, endocrinology, surgery, sports medicine and many other specialties, Sarcopenia, second edition, is a groundbreaking and essential new resource.
Download or read book Dietary Protein and Resistance Exercise written by Lonnie Michael Lowery and published by CRC Press. This book was released on 2012-04-25 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dietary supplement companies and the food industry spend millions to reach resistance trainers-often with exaggerated marketing messages-while health practitioners continue to counsel athletes that their interest in protein is misguided and even dangerous. There appears to be a disconnect between scientists and almost everyone else in sports nutrit
Download or read book Nutrient Timing Revisited written by Applied Research Press and published by Createspace Independent Publishing Platform. This book was released on 2015-07-21 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrient timing is a popular nutritional strategy that involves the consumption of combinations of nutrients-primarily protein and carbohydrate-in and around an exercise session. Some have claimed that this approach can produce dramatic improvements in body composition. It has even been postulated that the timing of nutritional consumption may be more important than the absolute daily intake of nutrients. The post-exercise period is widely considered the most critical part of nutrient timing. Theoretically, consuming the proper ratio of nutrients during this time not only initiates the rebuilding of damaged muscle tissue and restoration of energy reserves, but it does so in a supercompensated fashion that enhances both body composition and exercise performance. Several researchers have made reference to an anabolic "window of opportunity" whereby a limited time exists after training to optimize training-related muscular adaptations. However, the importance - and even the existence - of a post-exercise 'window' can vary according to a number of factors. Not only is nutrient timing research open to question in terms of applicability, but recent evidence has directly challenged the classical view of the relevance of post-exercise nutritional intake with respect to anabolism. Therefore, the purpose of this paper will be twofold: 1) to review the existing literature on the effects of nutrient timing with respect to post-exercise muscular adaptations, and; 2) to draw relevant conclusions that allow practical, evidence-based nutritional recommendations to be made for maximizing the anabolic response to exercise. Proceeds from the sale of this book go to support an elderly disabled person.
Download or read book Resistance Training induced Changes in Myofibrillar Protein Synthesis and Skeletal Muscle Hypertrophy in Recreationally Active Young Females written by Julia Mia Malowany and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present study examined the myofibrillar protein synthesis (MyoPS) response following an acute bout of resistance exercise (RE) in the untrained (UT) and trained (T) state to determine its association with hypertrophy in a female population. Ten recreationally active young females underwent ~9 wk of whole-body resistance training (RT). Whole-body fat free mass (FFM), vastus lateralis muscle thickness (MT) and 1RM strength were measured in the UT and T state. MyoPS was measured at 0 and 48 h post-RE following the first and final bout of RE using D2O. Following RT, there was a ~3.4% and ~8.8% increase in FFM (P.
Download or read book Exercise Metabolism written by Mark Hargreaves and published by Human Kinetics. This book was released on 2006 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference for biochemists, sport nutritionists, exercise physiologists, and graduate students in those disciplines. Provides information on the metabolic processes that take place during exercise, examining in depth the mobilization and utilization of substrates during physical activity. Focuses primarily on the skeletal muscle, but also discusses the roles of the liver and adipose tissue. Annotation copyright by Book News, Inc., Portland, OR
Download or read book Anatomy and Physiology written by J. Gordon Betts and published by . This book was released on 2013-04-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Changes in Muscle Protein Synthetic Rate and Ultrastructure Following Resistance Exercise written by Stephen A. Interisano and published by . This book was released on 1995 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Isotope Tracers in Metabolic Research written by Robert R. Wolfe and published by John Wiley & Sons. This book was released on 2004-10-18 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past few years, the number of applications of tracers for in vivo biomedical studies has greatly increased. New analytical tools at the genetic and protein levels have spurred this growth, opening the door for a deeper understanding of metabolic events. This in turn promises to yield significant advances in the understanding and treatment of human disease. Now fully revised and expanded, Isotope Tracers in Metabolic Research, Second Edition is the established definitive text on stable and radioactive isotope tracers. In unique, multidisciplinary fashion, it presents comprehensive coverage of new methodological, mathematical, and theoretical approaches. This new Second Edition includes: All-new chapters on nuclear magnetic resonance, mass isotopomer analysis, and methods of protein metabolism analysis A completely updated categorized list of over 750 references Major advances in the development of mass isotopomer and positional isotopomer techniques, noninvasive isotope techniques for studying metabolic pathways, hyphenated techniques, and new tracer techniques The latest developments in quantification of DNA synthesis and mass spectrometry spurred by genome sequencing and proteomics New coverage of mathematical modeling Expanded coverage of microdialysis probes, laboratory procedures, and regulatory issues related to human studies In this complete guide to performing tracer studies, the authors systematically cover tracer selection, modeling considerations, sample derivitization, mass spectrometry analysis, and data interpretation. Problems and discussion questions highlight key points in each chapter. Isotope Tracers in Metabolic Research, Second Edition offers students and researchers a comprehensive, practical resource for utilizing the latest tracer methodologies.
Download or read book Sports Endocrinology written by F. Lanfranco and published by Karger Medical and Scientific Publishers. This book was released on 2016-06-28 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an up-to-date, extensive overview of the effects of physical activity and training on endocrine function. It gives insights into a complex relationship by describing effects with respect to exercise performance, growth, development, and ageing. It includes discussions of the endocrine response depending on exercise mode, intensity, and duration as well as on gender, age, and fitness level. Additionally the book deals with the impact of environmental and psychological factors on endocrine level. A substantial part of Sports Endocrinology is devoted to the 'hot topic' of hormonal doping in sports. The properties of androgens, growth hormone, erythropoietin, and dietary supplements are highlighted. The use and abuse among professional and recreational athletes is discussed and specific methods of detection are presented and explained. All contributors are well-known experts in sports medicine and endocrinology, endocrine physiology, pharmacology, and doping detection, so this book is a must-read for every professional involved in the field.
Download or read book The Effects of Resistance Exercise on in Vivo Cumulative Skeletal Muscle Protein Synthesis written by Heath G. Gasier and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An acute bout of resistance exercise (RE) and dietary protein consumption stimulate muscle protein synthesis (MPS). This anabolic effect is believed to be attenuated with resistance exercise training (RET), however, the mechanism for this plateau" is unknown. In addition, the ideal timing for protein consumption to optimize MPS is not well characterized. The central hypothesis of this research is that RE stimulates cumulative (measured over 24-36 h) MPS in rats and humans. Study one determined whether an acute bout of RE in rats enhances MPS when assessed with the traditional flooding dose (~ 25 min) and 2H2O (4 and 24 h measurements); thus a comparison of the two methodologies was made. An acute session of RE did not result in an elevation in MPS when quantified by either the flooding dose or 2H2O over 4 and 24 h (methods compared qualitatively). Therefore, an acute bout of RE in rats does not appear to be anabolic and adaptation resulting from multiple bouts is likely necessary. Study two determined if RET in rats results in attenuation in MPS (plateau effect) 16 h following the final RE session (peak anabolic window) and if it is due to an increase in 4E-BP1 (a key regulator of mRNA translation initiation) activity; or if the timing in anabolism changes, which could be detected with a cumulative assessment (2H2O). MPS at 16 h was unchanged following RE training. Consistent with this finding, there were no differences in 4E-BP1 activity. Conversely, cumulative MPS was significantly increased with RET, suggesting a temporal shift in anabolism. Study three determined if dietary protein consumed immediately following RE augments cumulative (24 h) MPS in young adult human males when energy and macronutrients are controlled. RE and post-RE protein had no effect on mixed MPS; however, myofibrillar MPS was significantly increased with RE suggesting specific changes within a heterogeneous protein pool. Collectively, these are the first studies to assess changes in cumulative MPS with RE in rats and humans. The long term goals of this research are to understand muscle protein anabolism in "free-living" mammals and the mechanisms that regulate this process.
Download or read book Whole body Electromyostimulation A Training Technology to Improve Health and Performance in Humans written by Wolfgang Kemmler and published by Frontiers Media SA. This book was released on 2020-07-08 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resistance Training induced Changes in Human Muscle Protein Synthesis and Fibre Morphology written by Paul L. Kim and published by . This book was released on 2002 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrodiagnosis in New Frontiers of Clinical Research written by Dr.Hande Turker and published by BoD – Books on Demand. This book was released on 2013-05-22 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Utilization of electrodiagnosis; namely electromyography (EMG), nerve conduction studies, late responses, repetitive nerve stimulation techniques, quantitative EMG and evoked potentials, has long been discussed in many text books as basic principles. However the usage of electroneuromyography is rather new in some aspects when compared with tasks of daily practise. This book, we believe, will cover and enlighten those aspects where electrodiagnosis has begun to play important roles nowadays.
