Evaluation of food provision and nutrition support at the London 2012 Olympic Games: the opinion of sports nutrition experts.

abstract：:We investigated the effects of calcium supplementation and physical practice on the bone ultrasound properties and trabecular microarchitecture in children. 160 children aged 8-11 were randomly allocated to active or nonactive groups and to receive either a calcium-phosphate or a placebo powder for 6 months. Skeletal ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Ianc D,Serbescu C,Bembea M,Benhamou L,Lespessailles E,Courteix D

更新日期：2006-12-01 00:00:00

abstract：:Athletes competing in individual sports such as judo are categorized by weight. Before competitions, weight cutting is common. This cross-sectional study was designed to characterize and determine the prevalence of rapid weight loss (RWL) among adolescent judo competitors. Male athletes aged 12- to 17-years old (N = 1...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Berkovich BE,Eliakim A,Nemet D,Stark AH,Sinai T

更新日期：2016-06-01 00:00:00

abstract：:The purpose of this study was to measure the recovery kinetics of pH and lactate for the conditions of pre-exercise acidosis, alkalosis, and placebo states. Twelve trained male cyclists completed 3 exercise trials (110% workload at VO2max), ingesting either 0.3 g/kg of NH4Cl (ACD), 0.2 g/kg of Na+HCO3- and 0.2 g/kg of...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Robergs R,Hutchinson K,Hendee S,Madden S,Siegler J

更新日期：2005-02-01 00:00:00

abstract：:Exercise has a profound effect on muscle growth, which can occur only if muscle protein synthesis exceeds muscle protein breakdown; there must be a positive muscle protein balance. Resistance exercise improves muscle protein balance, but, in the absence of food intake, the balance remains negative (i.e., catabolic). T...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Tipton KD,Wolfe RR

更新日期：2001-03-01 00:00:00

abstract：:Prior to presentation, two physically fit adults, a 39-year-old male and 40-year-old female, began supplementation with an over-the-counter thyroid preparation marketed as a metabolic accelerator and fat loss aid, tiratricol. Both participants took the supplement for 5 weeks (3000-4000 mcg/d) and 3 weeks (6000 mcg/d),...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Scally MC,Hodge A

更新日期：2003-03-01 00:00:00

abstract：:The effects of a commercial sports drink on performance in high-intensity cycling was investigated. Nine well-trained subjects were asked to complete a set amount of work as fast as possible (time trial) following 24 h of dietary (subjects were provided with food, energy 57.4+/-2.4 kcal/kg and carbohydrate 9.1+/-0.4 g...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Desbrow B,Anderson S,Barrett J,Rao E,Hargreaves M

更新日期：2004-10-01 00:00:00

abstract：:The timing of carbohydrate ingestion and how this influences net muscle glycogen utilization and fatigue has only been investigated in prolonged cycling. Past findings may not translate to running because each exercise mode is distinct both in the metabolic response to carbohydrate ingestion and in the practicalities ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Menzies C,Wood M,Thomas J,Hengist A,Walhin JP,Jones R,Tsintzas K,Gonzalez JT,Betts JA

更新日期：2020-02-28 00:00:00

abstract：:This study examined the effects of carbohydrate (CHO), carbohydrate-protein (CHO+PRO), or placebo (PLA) beverages on recovery from novel eccentric exercise. Female participants performed 30 min of downhill treadmill running (-12% grade, 8.0 mph), followed by consumption of a CHO, CHO+PRO, or PLA beverage immediately, ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Green MS,Corona BT,Doyle JA,Ingalls CP

更新日期：2008-02-01 00:00:00

abstract：:This article describes the development, analysis, and implementation of the menu available to athletes and patrons in the main dining hall of the Athletes Village at the Sydney 2000 Olympic Games and the significant role of sports dietitians in this process. Menu design and development was informed by focus groups, li...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Pelly F,O'Connor H,Denyer G,Caterson I

更新日期：2009-08-01 00:00:00

abstract：:The potential for supplement use to result in doping infringements is likely to be of concern for anyone involved in sports nutrition. The available data indicates that between 40-70% of athletes use supplements, and that between 10-15% of supplements may contain prohibited substances. Such data indicates that there i...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Outram S,Stewart B

更新日期：2015-02-01 00:00:00

abstract：:Research suggests that ingesting protein after resistance exercise (RE) increases muscle protein synthesis and results in greater muscle gains. The effect on energy expenditure and substrate utilization, however, is unclear. This study evaluated the effect of RE and postexercise protein on recovery energy expenditure ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Benton MJ,Swan PD

更新日期：2007-12-01 00:00:00

abstract：:Regional fat distribution (RFD) has been associated with metabolic derangements in populations with obesity. For example, upper body fat patterning is associated with higher levels of free testosterone (FT) and lower levels of sex-hormone binding globulin (SHBG). We sought to determine the extent to which this relatio...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Nindl BC,Kraemer WJ,Gotshalk LA,Marx JO,Volek JS,Bush FA,Häkkinen K,Newton RU,Fleck SJ

更新日期：2001-12-01 00:00:00

abstract：:Obesity and increased arterial stiffness are independent risk factors for cardiovascular disease. Arterial stiffness is increased in obese individuals than in age-matched nonobese individuals. We demonstrated that dietary modification and exercise training are effective in reducing arterial stiffness in obese persons....

journal_title：International journal of sport nutrition and exercise metabolism

authors： Maeda S,Zempo-Miyaki A,Sasai H,Tsujimoto T,So R,Tanaka K

更新日期：2015-02-01 00:00:00

abstract：:The purpose was to compare changes in lean tissue mass, strength, and myofibrillar protein catabolism resulting from combining whey protein or soy protein with resistance training. Twenty-seven untrained healthy subjects (18 female, 9 male) age 18 to 35 y were randomly assigned (double blind) to supplement with whey p...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Candow DG,Burke NC,Smith-Palmer T,Burke DG

更新日期：2006-06-01 00:00:00

abstract：:The purpose of this study was to determine the effect of pre-exercise high carbohydrate meals with high glycemic index (HGI) or low glycemic index (LGI) on blood leukocyte redistribution during subsequent endurance exercise. Eight male subjects performed a 90-min run on a treadmill at 70 % VO2max 3 h after ingesting a...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Li TL,Wu CL,Gleeson M,Williams C

更新日期：2004-12-01 00:00:00

abstract：:This study was designed to compare the effects of energy-matched carbohydrate (CHO) and carbohydrate-protein (CHO-PRO) supplements on cycling time-trial performance. Twelve competitive male cyclists and triathletes each completed 2 trials in a randomized and counterbalanced order that were separated by 5-10 d and appl...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Toone RJ,Betts JA

更新日期：2010-02-01 00:00:00

abstract：:The purpose of the current study was to evaluate changes in body composition, metabolic rate, and hormones during postcompetition recovery. Data were collected from natural physique athletes (7 male/8 female) within one week before (T1) competition, within one week after (T2), and 4-6 weeks after (T3) competition. Mea...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Trexler ET,Hirsch KR,Campbell BI,Smith-Ryan AE

更新日期：2017-10-01 00:00:00

abstract：:This study determined normative data for sweat rate (SR) and whole-body (WB) sweat sodium concentration [Na+] in athletes indigenous to a tropical climate, categorized by age, gender, and sport classification. We analyzed data from 556 athletes (386 adult and 170 young) in endurance (END), team/ball (TBA), and combat ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Rivera-Brown AM,Quiñones-González JR

更新日期：2020-05-25 00:00:00

abstract：PURPOSE:The purpose of this study was to investigate the effect of acute and 4-week Rhodiola rosea intake on physical capacity, muscle strength, speed of limb movement, reaction time, and attention. METHODS: PHASE I:A double blind placebo-controlled randomized study (n= 24) was performed, consisting of 2 sessions (2 ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： De Bock K,Eijnde BO,Ramaekers M,Hespel P

更新日期：2004-06-01 00:00:00

abstract：AIMS/OBJECTIVES:To evaluate the current literature via systematic review to ascertain whether amino acids/vitamins provide any influence on musculotendinous healing and if so, by which physiological mechanisms. METHODS:EBSCO, PubMed, ScienceDirect, Embase Classic/Embase, and MEDLINE were searched using terms including...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Tack C,Shorthouse F,Kass L

更新日期：2018-05-01 00:00:00

abstract：:Opuntia ficus indica (OFI) has many physiological effects, but a relationship between OFI and heart-rate variability (HRV) has never been established. The aim of this study was to describe the effects of a diet supplement of OFI on HRV in athletes. The first day, heart rate (HR) was measured at rest in supine (SU) and...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Schmitt L,Fouillot JP,Nicolet G,Midol A

更新日期：2008-04-01 00:00:00

abstract：:Hypoxic exercise is characterized by workloads decrements. Because exercise and high altitude independently elicit redox perturbations, the study purpose was to examine hypoxic and normoxic steady-state exercise on blood oxidative stress. Active males (n = 11) completed graded cycle ergometry in normoxic (975 m) and h...

journal_title：International journal of sport nutrition and exercise metabolism

authors： McGinnis G,Kliszczewiscz B,Barberio M,Ballmann C,Peters B,Slivka D,Dumke C,Cuddy J,Hailes W,Ruby B,Quindry J

更新日期：2014-12-01 00:00:00

abstract：:The present study investigated the effect of the glycemic index of an evening meal on responses to a standard high glycemic index (HGI) breakfast the following morning. The metabolic responses to exercise 3 h after breakfast were also investigated. Seven active males completed 2 trials. In each trial, participants wer...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Stevenson E,Williams C,Nute M,Swaile P,Tsui M

更新日期：2005-06-01 00:00:00

abstract：:The polyunsaturated fatty acids docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) affect vascular relaxation and involve factors (e.g., nitric oxide) that contribute to exercise-induced increases in skeletal-muscle blood flow (Q). The authors investigated whether DHA and EPA supplementation augments skeletal-...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Stebbins CL,Hammel LE,Marshal BJ,Spangenberg EE,Musch TI

更新日期：2010-12-01 00:00:00

abstract：:The current study examined the effect of sprint interval exercise on postexercise oxygen consumption, respiratory-exchange ratio (RER), substrate oxidation, and blood pressure in adolescents. Participants were 10 normal-weight healthy youth (7 female), age 15-18 years. After overnight fasts, each participant undertook...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Burns SF,Oo HH,Tran AT

更新日期：2012-02-01 00:00:00

abstract：:Loss of muscle mass, strength, and oxidative capacity accompanies normal aging in humans. The mechanisms responsible for these changes remain to be clearly defined. Muscle protein mass and function depend on protein turnover. Synthesis rate of the major muscle contractile protein, myosin heavy chain (MHC), and transcr...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Short KR,Nair KS

更新日期：2001-12-01 00:00:00

abstract：:Eight healthy subjects, aged 39.0 ¿ 2.4 years, consumed four 6% carbohydrate-electrolyte solutions containing either one (glucose or fructose) or two transportable carbohydrates in single (glucose + fructose) or bound (sucrose) forms. Solution osmolalities ranged from 250 to 434 mOsm/kg H2O. The test solutions were in...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Shi X,Bartoli W,Horn M,Murray R

更新日期：2000-12-01 00:00:00

abstract：BACKGROUND:Creatine supplementation (CS) has been reported to increase body mass and improve performance in high-intensity, short-duration exercise tasks. Research on CS, most of which has come into existence since 1994, has been the focus of several qualitative reviews, but only one meta-analysis, which was conducted ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Branch JD

更新日期：2003-06-01 00:00:00

abstract：:Combat sport athletes typically engage in a process called making weight, characterized by rapid weight loss (RWL) and subsequent rapid weight gain (RWG) in the days preceding competition. These practices differ across each sport, but no systematic comparison of the size of the changes in body mass exists. The aim was...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Matthews JJ,Stanhope EN,Godwin MS,Holmes MEJ,Artioli GG

更新日期：2019-07-01 00:00:00

abstract：:The authors tested the hypothesis that perception of carbohydrate (CHO) availability augments exercise capacity in conditions of reduced CHO availability. Nine males completed a sleep-low train model comprising evening glycogen-depleting cycling followed by an exhaustive cycling protocol the next morning in the fasted...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Waterworth SP,Spencer CC,Porter AL,Morton JP

更新日期：2020-02-04 00:00:00