Does a Novice Technician Produce Results Similar to That of an Experienced DXA Technician When Assessing Body Composition and Bone Mineral Density?

abstract：:The effects of adaptation to a high-fat diet on endurance performance are equivocal, and there is little data regarding the effects on high-intensity exercise performance. This study examined the effects of a high-fat/moderate protein diet on submaximal, maximal, and supramaximal performance. Twenty non-highly trained...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Fleming J,Sharman MJ,Avery NG,Love DM,Gómez AL,Scheett TP,Kraemer WJ,Volek JS

更新日期：2003-12-01 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：:Agouti-related protein (AGRP) is an orexigenic peptide secreted from the arcuate nucleus (ARC) of the hypothalamus. AGRP increases food intake and plays a role in energy balance, adiposity, weight gain, and growth-hormone release. The objective of the current study was to examine the effects of running exercise on res...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Ghanbari-Niaki A,Fathi R,Kakhak SA,Farshidi Z,Barmaki S,Rahbarizadeh F,Kraemer RR

更新日期：2009-10-01 00:00:00

abstract：:This study implemented a 2-week high carbohydrate (CHO) diet intended to maximize CHO oxidation rates and examined the iron-regulatory response to a 26-km race walking effort. Twenty international-level, male race walkers were assigned to either a novel high CHO diet (MAX = 10 g/kg body mass CHO daily) inclusive of gu...

journal_title：International journal of sport nutrition and exercise metabolism

authors： McKay AKA,Peeling P,Pyne DB,Tee N,Welveart M,Heikura IA,Sharma AP,Whitfield J,Ross ML,van Swelm RPL,Laarakkers CM,Burke LM

更新日期：2021-12-31 00:00:00

abstract：BACKGROUND:Functional hypothalamic amenorrhea is common among female athletes and may be difficult to treat. Restoration of menses (ROM) is crucial to prevent deleterious effects to skeletal and reproductive health. OBJECTIVES:To determine the natural history of menstrual disturbances in female college athletes manage...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Arends JC,Cheung MY,Barrack MT,Nattiv A

更新日期：2012-04-01 00:00:00

abstract：OBJECTIVE:To examine the effects of resistance training on hematological and selected indices of iron status in 17 women aged 54-71 years and 18 men aged 56-69 years. DESIGN:Tests and evaluations were done before and after all subjects participated in a resistance-training program twice weekly for 12 weeks. RESULTS:T...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Murray-Kolb LE,Beard JL,Joseph LJ,Davey SL,Evans WJ,Campbell WW

更新日期：2001-09-01 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

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：:Although beetroot juice, as a nitrate carrier, is a popular ergogenic supplement among athletes, nitrate is consumed through the regular diet as well. We aimed to assess the habitual dietary nitrate intake and identify the main contributing food sources in a large group of highly trained athletes. Dutch highly trained...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Jonvik KL,Nyakayiru J,van Dijk JW,Wardenaar FC,van Loon LJ,Verdijk LB

更新日期：2017-04-01 00:00:00

abstract：:We investigated the effectiveness of two lifestyle modification programs of exercise training and nutritional intake (ad libitum) on improving body composition and disease risk in overweight/obese men and women. Sixty-three subjects were weight matched and assigned to one of three groups for a 12 wk intervention: (1) ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Arciero PJ,Gentile CL,Martin-Pressman R,Ormsbee MJ,Everett M,Zwicky L,Steele CA

更新日期：2006-08-01 00:00:00

abstract：:We sought to assess the accuracy of current or developing new prediction equations for resting metabolic rate (RMR) in adolescent athletes. RMR was assessed via indirect calorimetry, alongside known predictors (body composition via dual-energy X-ray absorptiometry, height, age, and sex) and hypothesized predictors (ra...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Reale RJ,Roberts TJ,Lee KA,Bonsignore JL,Anderson ML

更新日期：2020-05-26 00:00:00

abstract：:High-intensity intermittent exercise (HIIE) such as the 30-s Wingate test attenuates postprandial triacylglycerol (TG), however, the ability of shorter versions of HIIE to reduce postprandial TG is undetermined. Thus, the effect of 8-s sprinting bouts of HIIE on blood TG levels of 12 females after consumption of a hig...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Tan M,Chan Moy Fat R,Boutcher YN,Boutcher SH

更新日期：2014-02-01 00:00:00

abstract：:The aim of this study was to conduct a systematic review of the effects of probiotic supplementation on physically active individuals. The participants, interventions, comparisons, outcome and study design inclusion criteria were (a) studies involving healthy adults or older subjects of both sexes who did physical exe...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Möller GB,da Cunha Goulart MJV,Nicoletto BB,Alves FD,Schneider CD

更新日期：2019-09-01 00:00:00

abstract：:Low bone-mineral density (BMD) is associated with menstrual dysfunction and negative energy balance in the female athlete triad. This study determines BMD in elite female endurance runners and the associations between BMD, menstrual status, disordered eating, and training volume. Forty-four elite endurance runners par...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Pollock N,Grogan C,Perry M,Pedlar C,Cooke K,Morrissey D,Dimitriou L

更新日期：2010-10-01 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：:This study systematically examined the influence of carbohydrate (sucrose), sodium, and caffeine on the fluid retention potential of beverages under euhydrated conditions, using the beverage hydration index method. Three cohorts, each of 12 young, healthy, active men, ingested 1 L of beverages containing four differen...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Maughan RJ,Watson P,Cordery PAA,Walsh NP,Oliver SJ,Dolci A,Rodriguez-Sanchez N,Galloway SDR

更新日期：2018-10-15 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：:The purpose of this study was to examine the prevalence of disordered eating (DE), menstrual dysfunction (MD), and low bone mineral density (BMD) among US collegiate athletes (n = 112) representing 7 different sports (diving, swimming, x-country, track, tennis, field hockey, and softball) and determine differences in ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Beals KA,Hill AK

更新日期：2006-02-01 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：:The term Relative Energy Deficiency in Sport was introduced by the International Olympic Committee in 2014. It refers to the potential health and performance consequences of inadequate energy for sport, emphasizing that there are consequences of low energy availability (EA; typically defined as <30 kcal·kg-1 fat-free ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Elliott-Sale KJ,Tenforde AS,Parziale AL,Holtzman B,Ackerman KE

更新日期：2018-07-01 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：: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：: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：:Discrepancies in energy and macronutrient intakes between tests are apparent even when a solid prepackaged diet (Sdiet) is used to standardize dietary intake for preexperimental trials. It is unknown whether a liquid prepackaged diet (Ldiet) leads to improved adherence, resulting in lower variability in energy and mac...

journal_title：International journal of sport nutrition and exercise metabolism

authors： El-Chab A,Simpson C,Lightowler H

更新日期：2019-09-01 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：:Dietary supplementation (SUP) has become a significant part of athletic training. Studies indicate that creatine (Cr) can enhance short-duration, high-intensity activities. This study examined the effect of 21 days of low dose Cr SUP ( approximately 7.7 g/day) and resistance training on force output, power output, dur...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Burke DG,Silver S,Holt LE,Smith Palmer T,Culligan CJ,Chilibeck PD

更新日期：2000-09-01 00:00:00

abstract：:The purpose of this study was to examine the effect of high-intensity physical activity during training on the biochemical status of thiamin and riboflavin in athletes. Thiamin and riboflavin concentrations in whole blood of a group of 19 athletes (6 men and 13 women) were measured during a low-intensity preparatory p...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Sato A,Shimoyama Y,Ishikawa T,Murayama N

更新日期：2011-06-01 00:00:00

abstract：:The aim of this study was to analyze the effects of 8 weeks of conjugated linoleic acid (CLA) supplementation associated with aerobic exercise on body fat and lipid profile on obese women. We performed a randomized, double-blinded and placebo-controlled trial with 28 obese women who received 3.2 g/day of CLA or 4 g/da...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Ribeiro AS,Pina FL,Dodero SR,Silva DR,Schoenfeld BJ,Sugihara Júnior P,Fernandes RR,Barbosa DS,Cyrino ES,Tirapegui J

更新日期：2016-04-01 00:00:00

abstract：PURPOSE:Increased core temperature (T(c)), impaired cardiovascular function, and dehydration contribute to fatigue during prolonged exercise in the heat. Although many studies have examined mechanisms addressing these factors, few have investigated the effect of cold beverage temperature on thermoregulation and exercis...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Burdon CA,O'Connor HT,Gifford JA,Shirreffs SM

更新日期：2010-04-01 00:00:00