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https://www.readbyqxmd.com/read/27490353/-characteristics-of-nutrition-in-competitive-sports-ranging-from-leisure-activities-to-high-performance-athletics
#1
H Braun
Nutrition has a crucial influence on physical and mental performance ability and is an important measure along sidetraining in high-performance athletes. However, this form of nutritionis not applicable for every athlete and in every situation. The question of optimal nutrition requires involvement with the particular type of sports, an athlete's current training stage, and athletes' individual requirements and objectives. Implementation takes time and individual motivation on the part of athletes and the specialist staff who engage intensively with the nutritional needs of athletes...
August 2016: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/26553488/re-examining-high-fat-diets-for-sports-performance-did-we-call-the-nail-in-the-coffin-too-soon
#2
REVIEW
Louise M Burke
During the period 1985-2005, studies examined the proposal that adaptation to a low-carbohydrate (<25 % energy), high-fat (>60 % energy) diet (LCHF) to increase muscle fat utilization during exercise could enhance performance in trained individuals by reducing reliance on muscle glycogen. As little as 5 days of training with LCHF retools the muscle to enhance fat-burning capacity with robust changes that persist despite acute strategies to restore carbohydrate availability (e.g., glycogen supercompensation, carbohydrate intake during exercise)...
November 2015: Sports Medicine
https://www.readbyqxmd.com/read/25811308/postexercise-glycogen-recovery-and-exercise-performance-is-not-significantly-different-between-fast-food-and-sport-supplements
#3
RANDOMIZED CONTROLLED TRIAL
Michael J Cramer, Charles L Dumke, Walter S Hailes, John S Cuddy, Brent C Ruby
A variety of dietary choices are marketed to enhance glycogen recovery after physical activity. Past research informs recommendations regarding the timing, dose, and nutrient compositions to facilitate glycogen recovery. This study examined the effects of isoenergetic sport supplements (SS) vs. fast food (FF) on glycogen recovery and exercise performance. Eleven males completed two experimental trials in a randomized, counterbalanced order. Each trial included a 90-min glycogen depletion ride followed by a 4-hr recovery period...
October 2015: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/25304148/dietary-advice-for-muscularity-leanness-and-weight-control-in-men-s-health-magazine-a-content-analysis
#4
Toni M Cook, Jean M Russell, Margo E Barker
BACKGROUND: The dietary content of advice in men's lifestyle magazines has not been closely scrutinised. METHODS: We carried out an analysis of such content in all 2009 issues (n = 11) of Men's Health (MH) focusing on muscularity, leanness and weight control. RESULTS: Promotion of a mesomorphic body image underpinned advice to affect muscle building and control weight. Diet advice was underpinned by a strong pseudo-scientific discourse, with citation of expert sources widely used to legitimise the information...
October 11, 2014: BMC Public Health
https://www.readbyqxmd.com/read/25247804/assessment-of-nutrition-supplementation-and-body-composition-parameters-on-the-example-of-professional-volleyball-players
#5
Joanna Zapolska, Katarzyna Witczak, Angelika Mańczuk, Lucyna Ostrowska
BACKGROUND: Volleyball is a team game belonging to a group of sports disciplines that involve indirect fighting. Adequate energy coverage in athletes is a crucial issue. It depends primarily on the type, intensity and duration of physical activity related to the sports discipline practiced and to the training cycle duration. The average energy requirement in sportsmen is 50% higher than that of adults. OBJECTIVE: The aim of the study was to characterize the mode of nutrition, including dietary supplements and to assess somatic indices in female volleyball players of the AZS Bialystok team...
2014: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/24340935/-investigation-of-actual-nutrition-and-some-factors-of-physical-status-in-rugby-players
#6
(no author information available yet)
Physical status and nutrition and energy value of factual diets of 18 rugby players (15-30 years old) assessed during current medical observation were analyzed. Anthropometric data (height, body mass--BM, waist circumference/ hip circumference index, body mass index--BMI), body composition data and resting metabolic rate by bioimpedance method (analyzer ABC-01 "Medass") were determined. These indices were found to be normal except more high level of BMI due to high levels of lean and skeletal muscle mass, but not a result of obesity...
2013: Voprosy Pitaniia
https://www.readbyqxmd.com/read/24149705/cell-damage-antioxidant-status-and-cortisol-levels-related-to-nutrition-in-ski-mountaineering-during-a-two-day-race
#7
Elena Diaz, Fatima Ruiz, Itziar Hoyos, Jaime Zubero, Leyre Gravina, Javier Gil, Jon Irazusta, Susana Maria Gil
The aim of this study was to measure the effect of nutrition on cell damage, antioxidant enzymes, and cortisol during a two-day ski mountaineering competition. Twenty-one male skiers participated in the study. Creatine kinase (CK), aspartate aminotransferase (AST), alanine aminotransferase (ALT), γ-glutamyl transpeptidase (GGT), lactate dehydrogenase (LDH), alkaline phosphatase (AP), cortisol and C-reactive protein (CRP), glutathione peroxidase (GPx) and reductase activities (GR) and C-reactive protein (CRP) levels, total antioxidant status, and cortisol levels were measured in serum the day before and immediately after the race...
2010: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/22150425/dietary-protein-for-athletes-from-requirements-to-optimum-adaptation
#8
REVIEW
Stuart M Phillips, Luc J C Van Loon
Opinion on the role of protein in promoting athletic performance is divided along the lines of how much aerobic-based versus resistance-based activity the athlete undertakes. Athletes seeking to gain muscle mass and strength are likely to consume higher amounts of dietary protein than their endurance-trained counterparts. The main belief behind the large quantities of dietary protein consumption in resistance-trained athletes is that it is needed to generate more muscle protein. Athletes may require protein for more than just alleviation of the risk for deficiency, inherent in the dietary guidelines, but also to aid in an elevated level of functioning and possibly adaptation to the exercise stimulus...
2011: Journal of Sports Sciences
https://www.readbyqxmd.com/read/22000743/nutrition-for-sports-performance-issues-and-opportunities
#9
Ronald J Maughan, Susan M Shirreffs
Diet can significantly influence athletic performance, but recent research developments have substantially changed our understanding of sport and exercise nutrition. Athletes adopt various nutritional strategies in training and competition in the pursuit of success. The aim of training is to promote changes in the structure and function of muscle and other tissues by selective modulation of protein synthesis and breakdown in response to the training stimulus. This process is affected by the availability of essential amino acids in the post-exercise period...
February 2012: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/21916794/nutrition-for-endurance-sports-marathon-triathlon-and-road-cycling
#10
REVIEW
Asker E Jeukendrup
Endurance sports are increasing in popularity and athletes at all levels are looking for ways to optimize their performance by training and nutrition. For endurance exercise lasting 30 min or more, the most likely contributors to fatigue are dehydration and carbohydrate depletion, whereas gastrointestinal problems, hyperthermia, and hyponatraemia can reduce endurance exercise performance and are potentially health threatening, especially in longer events (>4 h). Although high muscle glycogen concentrations at the start may be beneficial for endurance exercise, this does not necessarily have to be achieved by the traditional supercompensation protocol...
2011: Journal of Sports Sciences
https://www.readbyqxmd.com/read/21799215/the-body-composition-nutritional-knowledge-attitudes-behaviors-and-future-education-needs-of-senior-schoolboy-rugby-players-in-ireland
#11
Michelle Walsh, Laura Cartwright, Clare Corish, Sheila Sugrue, Ruth Wood-Martin
PURPOSE: This study examined the body composition, nutritional knowledge, behaviors, attitudes, and educational needs of senior schoolboy rugby players in Ireland. METHODS: Participants included 203 male rugby players age 15-18 yr competing at Senior School's Cup level in Leinster, Ireland. Estimation of body composition included measurement of height, weight, and percentage body fat (PBF; using bioelectrical impedance analysis, Tanita BC-418). Nutritional knowledge, behaviors, attitudes, and education needs were assessed by questionnaire...
October 2011: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/19278045/position-of-the-american-dietetic-association-dietitians-of-canada-and-the-american-college-of-sports-medicine-nutrition-and-athletic-performance
#12
Nancy R Rodriguez, Nancy M DiMarco, Susie Langley
It is the position of the American Dietetic Association, Dietitians of Canada, and the American College of Sports Medicine that physical activity, athletic performance, and recovery from exercise are enhanced by optimal nutrition. These organizations recommend appropriate selection of foods and fluids, timing of intake, and supplement choices for optimal health and exercise performance. This updated position paper couples a rigorous, systematic, evidence-based analysis of nutrition and performance-specific literature with current scientific data related to energy needs, assessment of body composition, strategies for weight change, nutrient and fluid needs, special nutrient needs during training and competition, the use of supplements and ergogenic aids, nutrition recommendations for vegetarian athletes, and the roles and responsibilities of sports dietitians...
March 2009: Journal of the American Dietetic Association
https://www.readbyqxmd.com/read/19225360/american-college-of-sports-medicine-position-stand-nutrition-and-athletic-performance
#13
REVIEW
Nancy R Rodriguez, Nancy M Di Marco, Susie Langley
It is the position of the American Dietetic Association, Dietitians of Canada, and the American College of Sports Medicine that physical activity, athletic performance, and recovery from exercise are enhanced by optimal nutrition. These organizations recommend appropriate selection of foods and fluids, timing of intake, and supplement choices for optimal health and exercise performance. This updated position paper couples a rigorous, systematic, evidence-based analysis of nutrition and performance-specific literature with current scientific data related to energy needs, assessment of body composition, strategies for weight change, nutrient and fluid needs, special nutrient needs during training and competition, the use of supplements and ergogenic aids, nutrition recommendations for vegetarian athletes, and the roles and responsibilities of the sports dietitian...
March 2009: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/19204578/nutrition-and-athletic-performance
#14
(no author information available yet)
It is the position of the American Dietetic Association, Dietitians of Canada, and the American College of Sports Medicine that physical activity, athletic performance, and recovery from exercise are enhanced by optimal nutrition. These organizations recommend appropriate selection of foods and fluids, timing of intake, and supplement choices for optimal health and exercise performance. This updated position paper couples a rigorous, systematic, evidence-based analysis of nutrition and performance-specific literature with current scientific data related to energy needs, assessment of body composition, strategies for weight change, nutrient and fluid needs, special nutrient needs during training and competition, the use of supplements and ergogenic aids, nutrition recommendations for vegetarian athletes, and the roles and responsibilities of the sports dietitian...
February 6, 2009: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/19077742/physiological-performance-and-nutritional-profile-of-the-brazilian-olympic-wushu-kung-fu-team
#15
Guilherme Giannini Artioli, Bruno Gualano, Emerson Franchini, Rafael Novaes Batista, Viviane Ozores Polacow, Antonio Herbert Lancha
The purpose of the present study was to determine physiological, nutritional, and performance profiles of elite Olympic Wushu (kung-fu) athletes. Ten men and four women elite athletes took part in the study. They completed the following tests: body composition, nutritional assessment, upper-body Wingate Test, vertical jump, lumbar isometric strength, and flexibility. Blood lactate was determined at rest and after the Wingate Test. Blood lactate was also determined during a training session (combat and Taolu training)...
January 2009: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/18834505/international-society-of-sports-nutrition-position-stand-nutrient-timing
#16
Chad Kerksick, Travis Harvey, Jeff Stout, Bill Campbell, Colin Wilborn, Richard Kreider, Doug Kalman, Tim Ziegenfuss, Hector Lopez, Jamie Landis, John L Ivy, Jose Antonio
Position Statement: The position of the Society regarding nutrient timing and the intake of carbohydrates, proteins, and fats in reference to healthy, exercising individuals is summarized by the following eight points: 1.) Maximal endogenous glycogen stores are best promoted by following a high-glycemic, high-carbohydrate (CHO) diet (600 - 1000 grams CHO or ~8 - 10 g CHO/kg/d), and ingestion of free amino acids and protein (PRO) alone or in combination with CHO before resistance exercise can maximally stimulate protein synthesis...
2008: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/18651298/seasonal-comparison-of-wild-and-farmed-brown-trout-salmo-trutta-forma-fario-l-1758-crude-lipid-gonadosomatic-index-and-fatty-acids
#17
COMPARATIVE STUDY
Yalçin Kaya, Mehmet Emіn Erdem
Brown trout is one of the most preferred wild freshwater fish species in the east Black Sea region (Turkey) due to its nutritional value and palatable aroma as well as being popular for sport fishing. In this research, seasonal variations in the crude lipid, gonadosomatic index and fatty acid composition of wild and farmed brown trout were investigated. The spawning period of wild and farmed brown trout appears to be from August to October and from October to January, respectively. The mean crude lipid content in farmed brown trout (3...
August 2009: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/18049989/innovations-in-athletic-preparation-role-of-substrate-availability-to-modify-training-adaptation-and-performance
#18
REVIEW
John A Hawley, Martin J Gibala, Stéphane Bermon et al.
World records for athletic events continue to improve and in the search for superior methods to gain a competitive edge, coaches and athletes are constantly searching for the latest "magic bullet". Although it is assumed that optimal adaptation to the demands of repeated training sessions requires a diet that can sustain muscle energy reserves, this premise does not consider the unsolved longstanding question of whether it is a lack or a surplus of a substrate that triggers the training adaptation. As such, recent scientific enquiry has re-focused attention on the role of substrate availability before, during, and after training to amplify the training adaptation...
2007: Journal of Sports Sciences
https://www.readbyqxmd.com/read/17603144/profiling-the-diet-and-body-composition-of-subelite-adolescent-rhythmic-gymnasts
#19
Claudia D'Alessandro, Ester Morelli, Irene Evangelisti, Fabio Galetta, Ferdinando Franzoni, Donatella Lazzeri, Marina Piazza, Adamasco Cupisti
The aim of this study was to investigate the body composition and dietary intake of competitive club-level rhythmic gymnasts, who represent the larger cohort of the sport's practitioners. Fifty-five rhythmic gymnasts and 55 nonathlete females (13-19 years of age) were seen individually to collect a dietary recall and to take anthropometric data and bioelectric-impedance analysis. Gymnasts had lower body-mass index and lesser skinfold thickness, although middle arm-muscle circumference was similar in the 2 groups...
May 2007: Pediatric Exercise Science
https://www.readbyqxmd.com/read/16766500/promoting-training-adaptations-through-nutritional-interventions
#20
REVIEW
John A Hawley, Kevin D Tipton, Mindy L Millard-Stafford
Training and nutrition are highly interrelated in that optimal adaptation to the demands of repeated training sessions typically requires a diet that can sustain muscle energy reserves. As nutrient stores (i.e. muscle and liver glycogen) play a predominant role in the performance of prolonged, intense, intermittent exercise typical of the patterns of soccer match-play, and in the replenishment of energy reserves for subsequent training sessions, the extent to which acutely altering substrate availability might modify the training impulse has been a key research area among exercise physiologists and sport nutritionists for several decades...
July 2006: Journal of Sports Sciences
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