Marathon Specialization in Elites: A Head Start for Africans.

abstract：PURPOSE:To better understand the carbohydrate (CHO) requirement of Australian Football (AF) match play by quantifying muscle glycogen utilisation during an in-season AF match. METHODS:After a 24 h CHO loading protocol of 8 g/kg and 2 g/kg in the pre-match meal, two elite male forward players had biopsies sampled from ...

journal_title：International journal of sports physiology and performance

authors： Routledge HE,Leckey JJ,Lee MJ,Garnham A,Graham S,Burgess D,Burke LM,Erskine RM,Close GL,Morton JP

更新日期：2018-06-12 00:00:00

abstract：PURPOSE:To compare the effects of 2 repeated-sprint training programs on fitness in soccer. METHODS:Fifteen semiprofessional soccer players (age: 24 ± 4 y; body mass: 77 ± 8 kg) completed 6 repeated-sprint training sessions over a 2-week period. Players were assigned to a straight-line (STR) (n = 8; 3-4 sets of 7 × 30...

journal_title：International journal of sports physiology and performance

authors： Taylor JM,Macpherson TW,McLaren SJ,Spears I,Weston M

更新日期：2016-11-01 00:00:00

abstract：PURPOSE:The main purpose of the present study was to quantify the match running demands and physiological intensities of AF field and boundary umpires during match play. METHODS:Thirty-five AF umpires [20 field (age: 24.7 ± 7.7 y, body mass: 74.3 ± 7.1 kg, sum of 7 skinfolds: 67.8 ± 18.8 mm); 15 boundary (age: 29.6 ± ...

journal_title：International journal of sports physiology and performance

authors： Elsworthy N,Dascombe BJ

更新日期：2011-12-01 00:00:00

abstract：:The collection of retrospective lap times from video footage is a potentially useful research tool to analyze the pacing strategies in any number of competitive events. The aim of this study was to validate a novel method of obtaining running split-time data from publically available video footage. Videos of the 1500-...

journal_title：International journal of sports physiology and performance

authors： Mytton GJ,Archer DT,Thompson KG,Renfree A,St Clair Gibson A

更新日期：2013-11-01 00:00:00

abstract：PURPOSE:The purpose of this study was to determine the relationship between various lactate-threshold (LT) definitions and the average running velocity during a 10-km and a 21.1-km time trial (TT). METHODS:Thirteen well-trained runners completed an incremental maximal exercise test, a 10-km TT, and a 21.1-km TT on a m...

journal_title：International journal of sports physiology and performance

authors： Papadopoulos C,Doyle JA,LaBudde BD

更新日期：2006-09-01 00:00:00

abstract：PURPOSE:Foot-strike patterns (FSP) in running are related to certain impact kinetics during ground contact. A rear-foot strike (RFS) has been associated with higher impact forces, whereas a forefoot strike (FFS) is assumed to minimize these impact forces. This study investigated the effects of running with RFS or FFS o...

journal_title：International journal of sports physiology and performance

authors： Schroeder J,Erthel F,Hollander K

更新日期：2019-12-19 00:00:00

abstract：PURPOSE:To investigate the effects of an extreme uphill marathon on the mechanical parameters that are likely to affect the energy cost of running (Cr). METHODS:Eleven runners (27-59 y) participated in the Etna SuperMarathon (43 km, 0-3063 m above sea level). Anthropometric characteristics, maximal explosive power of ...

journal_title：International journal of sports physiology and performance

authors： Lazzer S,Salvadego D,Taboga P,Rejc E,Giovanelli N,di Prampero PE

更新日期：2015-03-01 00:00:00

abstract：PURPOSE:The purpose of this investigation was to determine the effect of stable and unstable conditions on one repetition maximum strength and muscle activity during dynamic squatting using absolute and relative loading. METHODS:Ten recreationally weight-trained males participated in this study (age = 24.1 +/- 2.0 y, ...

journal_title：International journal of sports physiology and performance

authors： McBride JM,Larkin TR,Dayne AM,Haines TL,Kirby TJ

更新日期：2010-06-01 00:00:00

abstract：PURPOSE:To determine how a cooling vest worn during a warm-up could influence selected performance (countermovement jump [CMJ]), physical (global positioning system [GPS] metrics), and psychophysiological (body temperature and perceptual) variables. METHODS:In a randomized, crossover design, 12 elite male World Rugby ...

journal_title：International journal of sports physiology and performance

authors： Taylor L,Stevens CJ,Thornton HR,Poulos N,Chrismas BCR

更新日期：2019-07-30 00:00:00

abstract：UNLABELLED:Anthropometrical and physical characteristics have been used to distinguish players of different competition levels and position groups; however, there is no literature on rugby sevens. PURPOSE:To compare the anthropometrical and physical characteristics of international and provincial rugby sevens players ...

journal_title：International journal of sports physiology and performance

authors： Ross A,Gill ND,Cronin JB

更新日期：2015-09-01 00:00:00

abstract：PURPOSE:To quantify changes in skeletal-muscle oxygenation and pulmonary O2 uptake (V̇O2) after an extreme ultratrail running bout. METHODS:Before (PRE) and after (POST) the race (330-km, 24000 D±), profiles of vastus lateralis muscle oxygenation (ie, oxyhemoglobin [O2Hb], deoxyhemoglobin [HHb], and tissue oxygenation...

journal_title：International journal of sports physiology and performance

authors： Vernillo G,Brighenti A,Limonta E,Trabucchi P,Malatesta D,Millet GP,Schena F

更新日期：2017-04-01 00:00:00

abstract：CONTEXT:Rugby union is a physically demanding collision sport with high injury rates. There is a common perception that higher training loads result in greater injury risk in field-based sports. OBJECTIVES:To determine injury, anthropometric, and physical-performance characteristics in junior rugby union players and i...

journal_title：International journal of sports physiology and performance

authors： Ball S,Halaki M,Sharp T,Orr R

更新日期：2018-01-01 00:00:00

abstract：:Repeated-sprint ability (RSA) is now well accepted as an important fitness component in team-sport performance. It is broadly described as the ability to perform repeated short (~3-4 s, 20-30 m) sprints with only brief (~10-30 s) recovery between bouts. Over the past 25 y a plethora of RSA tests have been trialed and ...

journal_title：International journal of sports physiology and performance

authors： Dawson B

更新日期：2012-09-01 00:00:00

abstract：CONTEXT:Muscle imbalances aid in the identification of athletes at risk for lower-extremity injury. Little is known regarding the influence that leg preference or playing position may have on lower-extremity muscle strength and asymmetry. PURPOSE:To investigate lower-extremity strength profiles in rugby union athletes...

journal_title：International journal of sports physiology and performance

authors： Brown SR,Brughelli M,Bridgeman LA

更新日期：2016-05-01 00:00:00

abstract：CONTEXT:Repeat-high-intensity efforts (RHIEs) have recently been shown to occur at critical periods of rugby league matches. PURPOSE:To examine the effect that caffeine has on RHIE performance in rugby league players. METHODS:Using a double-blind, placebo-controlled, crossover design, 11 semiprofessional rugby league...

journal_title：International journal of sports physiology and performance

authors： Wellington BM,Leveritt MD,Kelly VG

更新日期：2017-02-01 00:00:00

abstract：PURPOSE:To examine the training and concomitant changes in laboratory- and field-test performance of highly trained endurance runners. METHODS:Fourteen highly trained male endurance runners (mean ± SD maximal oxygen uptake [VO2max] 69.8 ± 6.3 mL · kg-1 · min-1) completed this 1-y training study commencing in April. Du...

journal_title：International journal of sports physiology and performance

authors： Galbraith A,Hopker J,Cardinale M,Cunniffe B,Passfield L

更新日期：2014-11-01 00:00:00

abstract：PURPOSE:To assess the reliability of a 5-min-stage graded exercise test (GXT) and determine the association between physiological attributes and performance over stochastic cycling trials of varying distance. METHODS:Twenty-eight well-trained male cyclists performed 2 GXTs and either a 30-km (n = 17) or a 100-km stoch...

journal_title：International journal of sports physiology and performance

authors： Levin GT,Laursen PB,Abbiss CR

更新日期：2014-03-01 00:00:00

abstract：PURPOSE:To identify contributing factors to the incidence of illness for professional team-sport athletes, using training load (TL), self-reported illness, and well-being data. METHODS:Thirty-two professional rugby league players (26.0 ± 4.8 y, 99.1 ± 9.6 kg, 1.84 ± 0.06 m) were recruited from the same club. Players p...

journal_title：International journal of sports physiology and performance

authors： Thornton HR,Delaney JA,Duthie GM,Scott BR,Chivers WJ,Sanctuary CE,Dascombe BJ

更新日期：2016-05-01 00:00:00

abstract：:Endurance exercise performance in hypoxia may be influenced by an ability to maintain high minute ventilation (V˙E) in defense of reduced arterial oxyhemoglobin saturation. Inspiratory muscle training (IMT) has been used as an effective intervention to attenuate the negative physiological consequences associated with ...

journal_title：International journal of sports physiology and performance

authors： Hursh DG,Baranauskas MN,Wiggins CC,Bielko S,Mickleborough TD,Chapman RF

更新日期：2019-09-01 00:00:00

abstract：PURPOSE:The authors investigated the association between risk of tendinopathies and genetic markers in professional team sports. METHODS:The authors studied 363 (mean [SD]; 25 [6] y, 89% male) elite players (soccer, futsal, basketball, handball, and roller hockey) from a top-level European team (FC Barcelona, Spain). ...

journal_title：International journal of sports physiology and performance

authors： Rodas G,Osaba L,Arteta D,Pruna R,Fernández D,Lucia A

更新日期：2019-10-14 00:00:00

abstract：PURPOSE:To determine the reliability of the 505 change-of-direction (COD) test performed with both a stationary and a flying start. METHODS:Fifty-two female netball players (age 23.9 ± 5.4 y, height 169.9 ± 3.3 cm, body mass 65.2 ± 4.6 kg) performed 6 trials of the 505 COD test, 3 with a flying start and 3 with a stat...

journal_title：International journal of sports physiology and performance

authors： Barber OR,Thomas C,Jones PA,McMahon JJ,Comfort P

更新日期：2016-04-01 00:00:00

abstract：:The aim of this study was to compare 2 different methodological assessments when analyzing the relationship between performance and heart-rate (HR) -derived indices (resting HR [RHR] and HR variability [HRV]) to evaluate positive adaptation to training. The relative change in estimated maximum aerobic speed (MAS) and ...

journal_title：International journal of sports physiology and performance

authors： Plews DJ,Laursen PB,Kilding AE,Buchheit M

更新日期：2013-11-01 00:00:00

abstract：PURPOSE:Games-based drills are the predominant form of training adopted during basketball practice. As such, researchers have begun to quantify the physical, physiological, and perceptual demands of different games-based drill formats. However, study methodology has not been systematically reported across studies, limi...

journal_title：International journal of sports physiology and performance

authors： O'Grady CJ,Fox JL,Conte D,Ferioli D,Scanlan AT,Dalbo VJ

更新日期：2021-01-09 00:00:00

abstract：PURPOSE:Caffeine is frequently used by athletes as an ergogenic aid. Various alternate forms of caffeine administration are available, which may produce different effects. This investigation compares the effects of different forms of caffeine supplementation on 5-km running performance, and the relationship between ath...

journal_title：International journal of sports physiology and performance

authors： Whalley PJ,Dearing CG,Paton CD

更新日期：2019-10-11 00:00:00

abstract：CONTEXT:Successful elite sprint to long-distance runners are known to have shorter ground-contact time (GCT) than their less successful counterparts. PURPOSE:To investigate whether augmented feedback (aF) about GCT can reduce the time on ground (TOG) per minute in long-distance runners and, if so, whether this reducti...

journal_title：International journal of sports physiology and performance

authors： Gilgen-Ammann R,Wyss T,Troesch S,Heyer L,Taube W

更新日期：2018-01-01 00:00:00

abstract：PURPOSE:To examine the neuromuscular and perceptual fatigue responses to consecutive tag football matches played on the same day and determine the relationship between fatigue and match running performance. METHODS:Neuromuscular and perceptual fatigue responses of 15 national tag football players were assessed before ...

journal_title：International journal of sports physiology and performance

authors： Hogarth LW,Burkett BJ,McKean MR

更新日期：2015-07-01 00:00:00

abstract：PURPOSE:The authors tested different loading schemes for the number of repetitions completed during multiple sets of resistance exercise. METHODS:Twenty-four resistance-trained men (age 24.0 ± 4.5 y, body mass 78.3 ±10.2 kg, height 177 ± 7 cm) were tested over a 5-wk period. During week 1 a 10-repetition maximum (10RM...

journal_title：International journal of sports physiology and performance

authors： Medeiros HS Jr,Mello RS,Amorim MZ,Koch AJ,Machado M

更新日期：2013-07-01 00:00:00

abstract：:The effects of an enforced fast start on long-distance performance are controversial and seem to depend on the athlete's capacity to delay and tolerate metabolic disruption. The aim of this study was to investigate the effects of an enforced start on 10-km-running performance and the influence of the some physiologica...

journal_title：International journal of sports physiology and performance

authors： do Carmo EC,Barroso R,Renfree A,Gil S,Tricoli V

更新日期：2016-09-01 00:00:00

abstract：:The National Basketball Association (NBA) has an extremely demanding competition schedule, requiring its athletes to compete in 82 regular-season games over a 6-mo period (∼3.4 games/wk). Despite the demanding schedule and high value of athletes, there is little public information on the specific game and training dem...

journal_title：International journal of sports physiology and performance

authors： McLean BD,Strack D,Russell J,Coutts AJ

更新日期：2019-04-01 00:00:00

abstract：PURPOSE:Road cycling is a sport with extreme physiological demands. Therefore, there is a need to find new strategies to improve performance. Heart rate variability (HRV) has been suggested as an effective alternative for prescribing training load against predefined training programs. The purpose of this study is to ex...

journal_title：International journal of sports physiology and performance

authors： Javaloyes A,Sarabia JM,Lamberts RP,Moya-Ramon M

更新日期：2018-05-29 00:00:00