Prevention of neutrophil protein oxidation with vitamins C and E diet supplementation without affecting the adaptive response to exercise.

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：:To defend against hydrogen cation accumulation and muscle fatigue during exercise, sodium bicarbonate (NaHCO3) ingestion is commonplace. The individualized dose-response relationship between NaHCO3 ingestion and blood biochemistry is unclear. The present study investigated the bicarbonate, pH, base excess and sodium r...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Jones RL,Stellingwerff T,Artioli GG,Saunders B,Cooper S,Sale C

更新日期：2016-10-01 00:00:00

abstract：PURPOSE:The impact of mild hypohydration on physiological responses and cognitive performance following exercise-heat stress (EHS) were examined compared with conditions when fluids were ingested ad libitum (AL) or replaced to match sweat losses (FR). METHODS:Twelve unacclimatized, recreationally-active men (22.2 ± 2....

journal_title：International journal of sport nutrition and exercise metabolism

authors： Wittbrodt MT,Millard-Stafford M,Sherman RA,Cheatham CC

更新日期：2015-10-01 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：:The purpose of this study was to determine the nutritional status, eating behaviors, and body composition of 20 jockeys working in the New Zealand Racing Industry. Seven-day weighed food records showed the mean daily energy intake for male and female jockeys was 6769 +/- 1339 kJ and 6213 +/- 1797 kJ, respectively. Ene...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Leydon MA,Wall C

更新日期：2002-06-01 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：:With the increasing knowledge about the role of nutrition in increasing exercise performance, it has become clear over the last 2 decades that amino acids, protein, and protein hydrolysates can play an important role. Most of the attention has been focused on their effects at a muscular level. As these nutrients are i...

journal_title：International journal of sport nutrition and exercise metabolism

authors： van Loon LJ,Kies AK,Saris WH

更新日期：2007-08-01 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：:Endurance athletes commonly ingest caffeine as a means to enhance training intensity and competitive performance. A widely-used source of caffeine is coffee, however conflicting evidence exists regarding the efficacy of coffee in improving endurance performance. In this context, the aims of this evidence-based review ...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Higgins S,Straight CR,Lewis RD

更新日期：2016-06-01 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：: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：: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 determine the effect of carbohydrate ingestion before and during intense constant load cycling to volitional fatigue on surface electromyographic (sEMG) activity from the vastus lateralis (VL) and vastus medialis (VM) muscles. After 24-h diet and training control, 8 well-trained subjec...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Nikolopoulos V,Arkinstall MJ,Hawley JA

更新日期：2004-04-01 00:00:00

abstract：INTRODUCTION:Supplementation with beta-alanine may have positive effects on severe-intensity, intermittent, and isometric strength-endurance performance. These could be advantageous for competitive alpine skiers, whose races last 45 to 150 s, require metabolic power above the aerobic maximum, and involve isometric musc...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Gross M,Bieri K,Hoppeler H,Norman B,Vogt M

更新日期：2014-12-01 00:00:00

abstract：PURPOSE:To illustrate the effects of low-carbohydrate (LC) and grain-based (GB) diets on body composition, biomarkers, athletic training, and performance in an elite triathlete. METHODS:The athlete followed 2 dietary interventions for 14 d while maintaining a prescheduled training program. Pre- and postintervention me...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Rosenkranz RR,Cook CM,Haub MD

更新日期：2007-06-01 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 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：: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：:The purpose of this study was to assess the influence of rehydration with a caffeinated beverage during nonexercise periods on hydration status throughout consecutive practices in the heat. Ten (7 women, 3 men) partially heat- acclimated athletes (age 24 +/-1y, body fat 19.2 +/- 2 %, weight 68.4 +/- 4.0 kg, height 170...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Fiala KA,Casa DJ,Roti MW

更新日期：2004-08-01 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：:Maintenance of repeated-sprint performance is a goal during team-sport competition such as soccer. Quercetin has been shown to be an adenosine-receptor antagonist and may reduce oxidative stress via inhibition of the enzyme xanthine oxidase (XO). The purpose of the study was to determine the effect of quercetin consum...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Abbey EL,Rankin JW

更新日期：2011-04-01 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：:The impact of altered blood glucose concentrations on exercise metabolism and performance after a low carbohydrate (CHO) diet was investigated. In random order, 1 wk apart, 9 trained men underwent euglycemic (CI) or placebo (PI) clamps, while performing up to 150 min of cycling at 70% VO2(max), after 48 h on a low CHO...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Claassen A,Lambert EV,Bosch AN,Rodger lM,St Clair Gibson A,Noakes TD

更新日期：2005-04-01 00:00:00

abstract：:This double-blinded, placebo controlled, randomized crossover trial investigated the influence of 2-week mixed flavonoid versus placebo supplementation on oxinflammation markers after a 75-km cycling time trial in 22 cyclists (42.3 ± 1.7 years). Blood samples were collected before and after the 2-week supplementation,...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Nieman DC,Valacchi G,Wentz LM,Ferrara F,Pecorelli A,Woodby B,Sakaguchi CA,Simonson A

更新日期：2019-11-21 00:00:00

abstract：:The aim of this study was to evaluate the frequency of dietary supplement (DS) use among elite Finnish athletes in 2002 and 2009. In 2009, the authors also wanted to examine the reasons for athletes' DS use, whether athletes feel they have experienced benefits from their supplement use, and whether athletes had had an...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Heikkinen A,Alaranta A,Helenius I,Vasankari T

更新日期：2011-08-01 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：: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：: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 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：PURPOSE:Exercise leads to a lower risk of coronary artery disease (CAD). However, whether time of day physical exercise has effects on CAD is still unclear. The present study is to investigate the relationship between time of day physical exercise and angiography determined CAD in a Chinese population. SUBJECTS:A tota...

journal_title：International journal of sport nutrition and exercise metabolism

authors： Zhao H,Chu XQ,Lian XQ,Wang ZM,Gao W,Wang LS

更新日期：2014-04-01 00:00:00