Effect of quercetin supplementation on repeated-sprint performance, xanthine oxidase activity, and inflammation.

abstract：:Six weeks (3 times/wk) of sprint-interval training (SIT) or continuous endurance training (CET) promote body-fat losses despite a substantially lower training volume with SIT. In an attempt to explain these findings, the authors quantified VO₂ during and after (24 h) sprint-interval exercise (SIE; 2 min exercise) vs. ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Hazell TJ,Olver TD,Hamilton CD,Lemon P WR

更新日期：2012-08-01 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：:Twelve healthy active subjects (6 male, 6 female) performed 60 min of exercise (60% VO(2max)) on 3 occasions after supplementing with L-Carnitine L-tartrate (LCLT) or placebo. Each subject received a chronic dose, an acute dose, and placebo in a randomized, double-blind crossover design. Dietary intake and exercise we...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Abramowicz WN,Galloway SD

更新日期：2005-08-01 00:00:00

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：:The main focus of this review is illness among elite athletes, how and why it occurs, and whether any measures can be taken to combat it or to prevent its onset. In particular, there is particular interest in exercise-induced immunodepression, which is a result of the immune system regarding exercise (e.g., prolonged,...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Castell LM,Nieman DC,Bermon S,Peeling P

更新日期：2019-03-01 00:00:00

abstract：:This study investigated the hydration profile of high-performance female cricket players competing at a national tournament. The profile comprised hydration monitoring (n=18) and a questionnaire (n=20). Our objectives were to 1) advance the understanding of fluid losses in cricket sessions across a tournament and 2) a...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Soo K,Naughton G

更新日期：2007-02-01 00:00:00

abstract：:Tonic vagal modulation of cardiac period (R-R interval) decreases with advancing age, but is greater in middle-aged and older adults who habitually perform aerobic exercise compared with their sedentary peers. Cardiovagal baroreflex sensitivity also declines markedly with age in sedentary adults but only 50% as much i...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Seals DR,Monahan KD,Bell C,Tanaka H,Jones PP

更新日期：2001-12-01 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：:The authors compared the effectiveness of daily (DAY) versus alternate day (ALT) oral iron supplementation in athletes with suboptimal iron. Endurance-trained runners (nine males and 22 females), with serum ferritin (sFer) concentrations <50 μg/L, supplemented with oral iron either DAY or ALT for 8 weeks. Serum ferrit...

journal_title：International journal of sport nutrition and exercise metabolism

authors： McCormick R,Dreyer A,Dawson B,Sim M,Lester L,Goodman C,Peeling P

更新日期：2020-03-27 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：:Both caffeine (CAF) and pseudoephedrine (PSE) are proposed to be central nervous system stimulants. However, during competition, CAF is a permitted substance, whereas PSE is a banned substance at urinary levels >150 μg · ml(-1). As a result, this study aimed to compare the effect of CAF versus PSE use on cycling time ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Spence AL,Sim M,Landers G,Peeling P

更新日期：2013-10-01 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 study examined the effect of amino acids in a carbohydrate beverage on cycling performance. Twelve male athletes (28.5 +/- 2.1 yr) cycled at 75% VO2peak for 90 min followed by a ride to exhaustion at 85% VO2peak, before (T1) and on 2 consecutive days (T2 and T3) after 2 weeks of supplementation with 3.6% carbohyd...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Skillen RA,Testa M,Applegate EA,Heiden EA,Fascetti AJ,Casazza GA

更新日期：2008-10-01 00:00:00

abstract：PURPOSE:To examine relationships between changes in body weight, body composition, and fitness level in male students of the general population and those in the Army Reserve Officer Training Corps (ROTC) program during the freshman year of college. METHODS:Thirty-seven (18.4 ± 0.7 yr) healthy, nonsmoking, first-semest...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Crombie AP,Liu PY,Ormsbee MJ,Ilich JZ

更新日期：2012-12-01 00:00:00

abstract：:Assessment of physical activity in clinical bone studies is essential. Two bone-specific physical activity scoring methods, the Bone Loading History Questionnaire (BLHQ) and Bone-Specific Physical Activity Questionnaire (BPAQ), have shown correlations with bone density and geometry, but not architecture. The purpose o...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Kindler JM,Ross HL,Laing EM,Modlesky CM,Pollock NK,Baile CA,Lewis RD

更新日期：2015-04-01 00:00:00

abstract：:This study characterized body composition profiles of elite American heptathletes and cross-validated skinfold (SKF) and bioelectrical impedance analysis (BIA) field method equations for estimation of percent body fat (%Fat) using dual energy x-ray absorptiometry (DXA) as the criterion. Weight, height, fat mass (FM), ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Houtkoopr L,Mullins VA,Going SB,Brown CH,Lohman TG

更新日期：2001-06-01 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：: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：:Postexercise fat oxidation may be important for exercise prescription aimed at optimizing fat loss. The authors examined the effects of exercise intensity, duration, and modality on postexercise oxygen consumption (VO2) and substrate selection/ respiratory-exchange ratio (RER) in healthy individuals. Three experiments...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Warren A,Howden EJ,Williams AD,Fell JW,Johnson NA

更新日期：2009-12-01 00:00:00

abstract：BACKGROUND/OBJECTIVES:To compare the effects of a 3-week supplementation between two different mixtures of antioxidants and placebo on aerobic exercise performance in acute normobaric hypoxia. SUBJECTS/METHODS:Seventeen subjects were randomly assigned in a double-blind fashion to receive a broad-based antioxidants sup...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Mariacher C,Gatterer H,Greilberger J,Djukic R,Greilberger M,Philippe M,Burtscher M

更新日期：2014-04-01 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：: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：: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：:Inflammatory markers such as C-reactive protein (CRP), fibrinogen, and white-blood-cell (WBC) count are strongly associated with cardiovascular disease. The authors' purpose was to compare the inflammatory response to a single aerobic-exercise session between individuals of high and moderate fitness. Ten apparently he...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Plaisance EP,Taylor JK,Alhassan S,Abebe A,Mestek ML,Grandjean PW

更新日期：2007-04-01 00:00:00

abstract：BACKGROUND:Time spent in sedentary activities (such as watching television) has previously been associated with several risk factors for cardiovascular disease (CVD) such as increased low-density lipoprotein cholesterol (LDL-C). Little is known about associations with lipoprotein subfractions. Using television and comp...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Frazier-Wood AC,Borecki IB,Feitosa MF,Hopkins PN,Smith CE,Arnett DK

更新日期：2014-02-01 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：:Alpha-lipoic acid has been found to enhance glucose uptake into skeletal muscle in animal models. Studies have also found that the co-ingestion of carbohydrate along with creatine increases muscle creatine uptake by a process related to insulin-stimulated glucose disposal. The purpose of this study was to determine th...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Burke DG,Chilibeck PD,Parise G,Tarnopolsky MA,Candow DG

更新日期：2003-09-01 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：:The aim of this study was to evaluate the food provision and nutrition support at the London 2012 Olympic (OG) and Paralympic Games (PG) from the perspective of sports nutrition experts attending the event. Participants (n = 15) were asked to complete an online survey and rate on a Likert scale menu qualities, food sa...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Pelly F,Meyer NL,Pearce J,Burkhart SJ,Burke LM

更新日期：2014-12-01 00:00:00

abstract：:Recent studies have shown that neutrophils can utilize glutamine and that glutamine supplementation can improve neutrophil function in postoperative and burn patients. The present study investigated the influence of oral glutamine supplementation on stimulated neutrophil degranulation and oxidative burst activity foll...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Walsh NP,Blannin AK,Bishop NC,Robson PJ,Gleeson M

更新日期：2000-03-01 00:00:00