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https://www.readbyqxmd.com/read/24936780/nutritional-recommendations-for-divers
#1
Dan Benardot, Wes Zimmermann, Gregory R Cox, Saul Marks
Competitive diving involves grace, power, balance, and flexibility, which all require satisfying daily energy and nutrient needs. Divers are short, well-muscled, and lean, giving them a distinct biomechanical advantage. Although little diving-specific nutrition research on performance and health outcomes exists, there is concern that divers are excessively focused on body weight and composition, which may result in reduced dietary intake to achieve desired physique goals. This will result in low energy availability, which may have a negative impact on their power-to-weight ratio and health risks...
August 2014: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/24787233/nutritional-practices-associated-with-low-energy-availability-in-division-i-female-soccer-players
#2
Jennifer L Reed, Mary Jane De Souza, Joseph M Kindler, Nancy I Williams
The purpose of this study was to examine macronutrient intake, energy density and energy intake distribution that may be associated with low energy availability (EA) in Division I female soccer players. The energy intake, exercise energy expenditure and EA of 19 participants (18-21 years) was assessed during the pre-, mid- and postseasons. Repeated measures analysis of variance was performed to examine the changes across the season. Chi-square analysis was performed to examine the distribution of participants meeting the American College of Sports Medicine recommendations for carbohydrate and protein consumption...
2014: Journal of Sports Sciences
https://www.readbyqxmd.com/read/24752440/physical-activity-programs-for-promoting-bone-mineralization-and-growth-in-preterm-infants
#3
REVIEW
Sven M Schulzke, Siree Kaempfen, Daniel Trachsel, Sanjay K Patole
BACKGROUND: Lack of physical stimulation may contribute to metabolic bone disease of preterm infants, resulting in poor bone mineralization and growth. Physical activity programs combined with adequate nutrition might help to promote bone mineralization and growth. OBJECTIVES: The primary objective was to assess whether physical activity programs in preterm infants improve bone mineralization and growth and reduce the risk of fracture.The secondary objectives included other potential benefits in terms of length of hospital stay, skeletal deformities and neurodevelopmental outcomes, and adverse events...
April 22, 2014: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/24620037/the-ioc-consensus-statement-beyond-the-female-athlete-triad-relative-energy-deficiency-in-sport-red-s
#4
Margo Mountjoy, Jorunn Sundgot-Borgen, Louise Burke, Susan Carter, Naama Constantini, Constance Lebrun, Nanna Meyer, Roberta Sherman, Kathrin Steffen, Richard Budgett, Arne Ljungqvist
Protecting the health of the athlete is a goal of the International Olympic Committee (IOC). The IOC convened an expert panel to update the 2005 IOC Consensus Statement on the Female Athlete Triad. This Consensus Statement replaces the previous and provides guidelines to guide risk assessment, treatment and return-to-play decisions. The IOC expert working group introduces a broader, more comprehensive term for the condition previously known as 'Female Athlete Triad'. The term 'Relative Energy Deficiency in Sport' (RED-S), points to the complexity involved and the fact that male athletes are also affected...
April 2014: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/24579215/current-state-and-use-of-biological-adhesives-in-orthopedic-surgery
#5
REVIEW
Neil V Shah, Robert Meislin
Bone and tissue adhesives are common and beneficial supplements to standard methods of musculoskeletal tissue suture repair. Knowledge and development of biologically derived or inspired adhesives useful in orthopedic surgery are rapidly advancing. Recent literature demonstrates the increased adjunct or primary use of biological adhesives in the repair of musculoskeletal soft tissues, chondral fractures, and osteochondral fractures. Adhesives offer more benefits and enhancements to tissue healing than current fixation methods afford, including improved biocompatibility, resorbability, and non-immunogenicity...
December 2013: Orthopedics
https://www.readbyqxmd.com/read/24223995/endurance-exercise-and-conjugated-linoleic-acid-cla-supplementation-up-regulate-cyp17a1-and-stimulate-testosterone-biosynthesis
#6
Rosario Barone, Filippo Macaluso, Patrizia Catanese, Antonella Marino Gammazza, Luigi Rizzuto, Paola Marozzi, Giuseppe Lo Giudice, Tomaso Stampone, Francesco Cappello, Giuseppe Morici, Giovanni Zummo, Felicia Farina, Valentina Di Felice
A new role for fat supplements, in particular conjugated linoleic acid (CLA), has been delineated in steroidogenesis, although the underlying molecular mechanisms have not yet been elucidated. The aims of the present study were to identify the pathway stimulated by CLA supplementation using a cell culture model and to determine whether this same pathway is also stimulated in vivo by CLA supplementation associated with exercise. In vitro, Leydig tumour rat cells (R2C) supplemented with different concentrations of CLA exhibited increasing testosterone biosynthesis accompanied by increasing levels of CYP17A1 mRNA and protein...
2013: PloS One
https://www.readbyqxmd.com/read/23851409/fueling-the-rugby-player-maximizing-performance-on-and-off-the-pitch
#7
Deena Casiero
Fueling the rugby athlete requires a sports nutrition plan that balances energy intake with energy output while providing the athlete with adequate fuel for recovery. The content and timing of meals are fundamental parts of a successful regimen and often require the athlete to participate in extensive planning and preparation to succeed. Carbohydrates, protein, and fat are the primary fuel of the rugby athlete's diet, and proper hydration is imperative to optimize performance. The use of dietary supplements such as energy drinks and caffeine are controversial, and the supplementation of vitamins and minerals is generally not recommended...
July 2013: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/22757700/aminopeptidase-from-streptomyces-gedanensis-as-a-useful-tool-for-protein-hydrolysate-preparations-with-improved-functional-properties
#8
Raji Rahulan, Kiran S Dhar, K Madhavan Nampoothiri, Ashok Pandey
UNLABELLED: The aim of the present study was to evaluate the efficiency of amino peptidase (AP) from Streptomyces gedanensis to produce protein hydrolysates (PHs) with better antioxidant, nutritional, and functional properties and to compare it with the PHs produced by commercial protease. Three proteins, soy, casein, and wheat protein were employed to produce their hydrolysates by applying 2% (w/w) AP at optimal conditions of pH 8.5 and temperature 55 °C. The results disclosed that the degree of hydrolysis ranges from 15...
July 2012: Journal of Food Science
https://www.readbyqxmd.com/read/22248498/dietary-supplementation-practices-in-canadian-high-performance-athletes
#9
MULTICENTER STUDY
Victor Lun, Kelly A Erdman, Tak S Fung, Raylene A Reimer
Dietary supplementation is a common practice in athletes with a desire to enhance performance, training, exercise recovery, and health. Supplementation habits of elite athletes in western Canada have been documented, but research is lacking on supplement use by athletes across Canada. The purpose of this descriptive study was to evaluate the dietary supplementation practices and perspectives of high-performance Canadian athletes affiliated with each of the country's eight Canadian Sport Centres. Dietitians administered a validated survey to 440 athletes (63% women, 37% men; M=19...
February 2012: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/21831001/sport-specific-nutrition-practical-strategies-for-team-sports
#10
Francis E Holway, Lawrence L Spriet
Implementation of a nutrition programme for team sports involves application of scientific research together with the social skills necessary to work with a sports medicine and coaching staff. Both field and court team sports are characterized by intermittent activity requiring a heavy reliance on dietary carbohydrate sources to maintain and replenish glycogen. Energy and substrate demands are high during pre-season training and matches, and moderate during training in the competitive season. Dietary planning must include enough carbohydrate on a moderate energy budget, while also meeting protein needs...
2011: Journal of Sports Sciences
https://www.readbyqxmd.com/read/20830526/current-issues-regarding-treatment-of-mitochondrial-fatty-acid-oxidation-disorders
#11
REVIEW
Ute Spiekerkoetter, Jean Bastin, Melanie Gillingham, Andrew Morris, Frits Wijburg, Bridget Wilcken
Treatment recommendations in mitochondrial fatty acid oxidation (FAO) defects are diverse. With implementation of newborn screening and identification of asymptomatic patients, it is necessary to define whom to treat and how strictly. We here discuss critical questions that are currently under debate. For some asymptomatic long-chain defects, long-chain fat restriction plays a minor role, and a normal diet may be introduced. For patients presenting only with myopathic symptoms, e.g., during exercise, treatment may be adapted to energy demand...
October 2010: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/20538154/sports-doping-in-the-adolescent-the-faustian-conundrum-of-hors-de-combat
#12
REVIEW
Donald E Greydanus, Dilip R Patel
The drive toward success in sports and the need for a cosmetically acceptable appearance have driven many adolescents to take a wide variety of so-called doping substances. The consumption of these chemicals in the hope and hype of improved sports performance, fueled by the easing of government restrictions on their proof of safety and efficacy, has resulted in an explosion of so-called ergogenic products available to our youth. Agents that have been used include anabolic steroids, anabolic-like agents, designer steroids, creatine, protein and amino acid supplements, minerals, antioxidants, stimulants, blood doping, erythropoietin, beta-blockers, and others...
June 2010: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/20506984/sports-nutrition-for-young-athletes
#13
Leslie Bonci
No abstract text is available yet for this article.
May 2010: Pediatric Annals
https://www.readbyqxmd.com/read/19487146/growth-hormone-and-the-adolescent-athlete-what-are-the-data-for-its-safety-and-efficacy-as-an-ergogenic-agent
#14
Alan D Rogol
There is great interest among athletes and in the sports and general media for the subject of "doping" with human growth hormone (hGH). The hype about this substance goes far beyond the available data. The issue of administration of recombinant rhGH to adolescents, whether for athletic performance or for esthetic purposes adds another wrinkle because normal pubertal growth and the acquisition of adult body composition depends upon the GH/IGF-I and the hypothalamic-pituitary-gonadal axes. The range of normal is wide and it is more difficult to determine the natural evolution of pubertal development from that fueled by rhGH (or anabolic steroids)...
August 2009: Growth Hormone & IGF Research
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
#15
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
#16
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
#17
(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/19001886/nutritional-consideration-in-the-aging-athlete
#18
REVIEW
Mark A Tarnopolsky
OBJECTIVE: : To evaluate the evidence for dietary recommendations in older adult athletes. DESIGN: : Interpretive review of the literature. RESULTS: : Regarding resistance training, a protein intake of slightly more than 0.8 g/kg/d is required to optimize gains in muscle strength. The early provision of protein and carbohydrate following a weight training session can enhance resultant strength and fat-free mass gains. Supplementation with creatine monohydrate (approximately 5 g/d) can potentiate some of the gains in strength and fat free mass attained through resistance exercise training...
November 2008: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/18827583/functional-food-for-exercise-performance-fact-or-foe
#19
REVIEW
Louise Deldicque, Marc Francaux
PURPOSE OF REVIEW: To present food components showing evidence for improved sport performance in the light of the scientific literature from the past 2 years. RECENT FINDINGS: Appropriate nutrition is essential for sport performance. Nutritional products containing carbohydrates, proteins, vitamins, and minerals have been widely used by athletes to provide something extra to the daily allowance. Currently, the field of interest is shifting from macronutrients and fluids to physiologically active isolated food components...
November 2008: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/16440177/developmental-maturation-and-segmental-distribution-of-rat-small-intestinal-l-carnitine-uptake
#20
P García-Miranda, J M Durán, M J Peral, A A Ilundáin
Oral L-carnitine supplementation is commonly used in sports nutrition and in medicine; however, there is controversy regarding the mechanisms that mediate intestinal L-carnitine transport. We have previously reported that the Na(+)/L-carnitine transporter OCTN2 is present in the small intestinal apical membrane. Herein we aimed to find out if this step of intestinal L-carnitine absorption is ontogenically regulated, and if so, to determine the molecular mechanism(s) involved. L-[(3)H]-Carnitine uptake was measured in the jejunum and ileum of fetuses (E17 and E21), newborn (1 day-old), suckling (15 day-old), weaning (1 month-old) and adult (2 and 6 month-old) Wistar rats...
July 2005: Journal of Membrane Biology
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