Positive Effects of Augmented Feedback to Reduce Time on Ground in Well-Trained Runners.

abstract：PURPOSE:To assess and compare the effects of 8 wk of in-season (2 sessions/wk) low- and high-volume plyometric training (PT) on measures of physical fitness in prepubertal male soccer players. METHODS:A total of 25 soccer players were randomly assigned to a low-volume PT group (LPT; n = 13, age 12.68 ± 0.23 y, age at ...

journal_title：International journal of sports physiology and performance

authors： Chaabene H,Negra Y

更新日期：2017-10-01 00:00:00

abstract：UNLABELLED:Energicer is a new solution which purportedly increases evaporative cooling during exercise in the heat. PURPOSE:To evaluate the effect of Energicer on performance during indoor rowing in a warm environment. METHODS:Eighteen highly trained rowers (age 23.3 ± 6.7 y, height 181.3 ± 6.0 cm, mass 76.7 ± 5.0 kg...

journal_title：International journal of sports physiology and performance

authors： Mujika I,González De Txabarri R,Pyne D

更新日期：2010-09-01 00:00:00

abstract：PURPOSE:To determine the effect of altitude training at 1600 and 1800 m on sea-level (SL) performance in national-level runners. METHODS:After 3 wk of SL training, 24 runners completed a 3-wk sojourn at 1600 m (ALT1600, n = 8), 1800 m (ALT1800, n = 9), or SL (CON, n = 7), followed by up to 11 wk of SL racing. Race per...

journal_title：International journal of sports physiology and performance

authors： Sharma AP,Saunders PU,Garvican-Lewis LA,Clark B,Welvaert M,Gore CJ,Thompson KG

更新日期：2019-03-01 00:00:00

abstract：PURPOSE:The aim of this study was to describe the pacing profiles used by racewalkers competing in IAAF World Championships. METHODS:The times for each 5-km segment were obtained for 225 men competing over 20 km, 214 women competing over 20 km, and 232 men competing over 50 km, of whom 49 did not finish. Athletes were...

journal_title：International journal of sports physiology and performance

authors： Hanley B

更新日期：2013-07-01 00:00:00

abstract：PURPOSE:The purpose of this investigation was to quantify maximal aerobic power (VO2max) in soccer as a function of performance level, position, age, and time of season. In addition, the authors examined the evolution of VO2max among professional players over a 23-y period. METHODS:1545 male soccer players (22 ± 4 y, ...

journal_title：International journal of sports physiology and performance

authors： Tønnessen E,Hem E,Leirstein S,Haugen T,Seiler S

更新日期：2013-05-01 00:00:00

abstract：OBJECTIVES:To evaluate the current evidence regarding the quantification of cricket fast-bowling skill. METHODS:Studies that assessed fast-bowling skill (bowling speed and accuracy) were identified from searches in SPORTDiscus (EBSCO) in June 2017. The reference lists of identified papers were also examined for releva...

journal_title：International journal of sports physiology and performance

authors： Feros SA,Young WB,O'Brien BJ

更新日期：2018-08-01 00:00:00

abstract：PURPOSE:Despite the volume of available literature focusing on marathon running and the prediction of performance, no single prediction equations exists that is accurate for all runners of varying experiences and abilities. Indeed the relative merits and utility of the existing equations remain unclear. Thus, the aim o...

journal_title：International journal of sports physiology and performance

authors： Keogh A,Smyth B,Caulfield B,Lawlor A,Berndsen J,Doherty C

更新日期：2019-10-01 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：BACKGROUND:Sprint running acceleration is a key feature of physical performance in team sports, and recent literature shows that the ability to generate large magnitudes of horizontal ground-reaction force and mechanical effectiveness of force application are paramount. The authors tested the hypothesis that very-heavy...

journal_title：International journal of sports physiology and performance

authors： Morin JB,Petrakos G,Jiménez-Reyes P,Brown SR,Samozino P,Cross MR

更新日期：2017-07-01 00:00:00

abstract：:Investigations into ventilatory, metabolic, and hematological changes with altitude training have been completed; however, there is a lack of research exploring potential gait-kinematic changes after altitude training, despite a common complaint of athletes being a lack of leg "turnover" on return from altitude traini...

journal_title：International journal of sports physiology and performance

authors： Stickford AS,Wilhite DP,Chapman RF

更新日期：2017-01-01 00:00:00

abstract：PURPOSE:To establish appropriate work intensity for interval training that would elicit maximal oxygen uptake (VO2max) for well-trained swimmers. METHODS:Twelve male competitive swimmers completed an incremental protocol to determine the minimum velocity at VO2max (νVO2max) and, in randomized order, 3 square-wave exer...

journal_title：International journal of sports physiology and performance

authors： Sousa A,Vilas-Boas JP,Fernandes RJ,Figueiredo P

更新日期：2017-08-01 00:00:00

abstract：:Player loads and fatigue responses are reported in 15 professional rugby league players (24.3 ± 3.8 y) during a period of intensified fixtures. Repeated measures of internal and external loads, perceived well-being, and jump flight time were recorded across 22 d, comprising 9 training sessions and matches on days 5, 1...

journal_title：International journal of sports physiology and performance

authors： Twist C,Highton J,Daniels M,Mill N,Close G

更新日期：2017-09-01 00:00:00

abstract：PURPOSE:To compare the metabolic cost of paddling on different commercially available kayak ergometers using a standardized kayak incremental exercise protocol. METHODS:Six male sprint kayak athletes undertook an incremental exercise protocol on 3 different kayak ergometers utilizing a randomized counterbalanced pair-...

journal_title：International journal of sports physiology and performance

authors： Oliveira Borges T,Bullock N,Aitken D,Cox GR,Coutts AJ

更新日期：2020-08-18 00:00:00

abstract：:Cross-country mountain biking (XCO) is a popular high-intensity endurance cycling event, but XCO pacing strategy has not been fully examined. This study examined the pacing strategies of different XCO athletes during a laboratory-simulated XCO performance test. Brazilian cyclists classified as performance-cohort level...

journal_title：International journal of sports physiology and performance

authors： Viana BF,Pires FO,Inoue A,Santos TM

更新日期：2018-02-01 00:00:00

abstract：PURPOSE:To investigate the physical and physiological response to different formats of various-sided games. METHODS:Eighteen elite women's soccer players wore 15-Hz global positioning system devices and heart-rate (HR) monitors during various-sided games (small, 4 vs 4 and 5 vs 5; medium, 6 vs 6 and 7 vs 7; large, 8 v...

journal_title：International journal of sports physiology and performance

authors： Mara JK,Thompson KG,Pumpa KL

更新日期：2016-10-01 00:00:00

abstract：UNLABELLED:Regular monitoring of adaptation to training is important for optimizing training load and recovery, which is the main factor in successful training. PURPOSE:To investigate the usefulness of a novel submaximal running test (SRT) in field conditions in predicting and tracking changes of endurance performance...

journal_title：International journal of sports physiology and performance

authors： Vesterinen V,Nummela A,Ayramo S,Laine T,Hynynen E,Mikkola J,Häkkinen K

更新日期：2016-04-01 00:00:00

abstract：PURPOSE:To determine the effect of high- versus low-intensity training in the heat and ensuing taper period in the heat on endurance performance. METHODS:In total, 19 well-trained triathletes undertook 5 days of normal training and a 1-wk taper including either low- (heat acclimation [HA-L], n = 10) or high-intensity ...

journal_title：International journal of sports physiology and performance

authors： Schmit C,Duffield R,Hausswirth C,Brisswalter J,Le Meur Y

更新日期：2018-07-01 00:00:00

abstract：PURPOSE:To analyze and compare the effects of 4 different resisted sprint training (RST) modalities on youth soccer players' performance after 8 weeks of training. METHODS:Forty-eight youth soccer players were first randomly assigned to 4 groups and only then completed 8 weeks of RST: horizontal resisted sprint, verti...

journal_title：International journal of sports physiology and performance

authors： Carlos-Vivas J,Perez-Gomez J,Eriksrud O,Freitas TT,Marín-Cascales E,Alcaraz PE

更新日期：2020-05-01 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

abstract：UNLABELLED:The contractile history of muscle can potentiate electrically evoked force production. A link to voluntary force production, related in part to an increase in reflex excitability, has been suggested. PURPOSE:Our purpose was to quantify the effect of postactivation potentiation on voluntary force production ...

journal_title：International journal of sports physiology and performance

authors： Hodgson MJ,Docherty D,Zehr EP

更新日期：2008-06-01 00:00:00

abstract：UNLABELLED:There is a great deal of research on the responses to resistance training; however, information on the responses to strength and power training conducted by elite strength and power athletes is sparse. PURPOSE:To establish the acute and 24-h neuromuscular and kinematic responses to Olympic-style barbell str...

journal_title：International journal of sports physiology and performance

authors： Howatson G,Brandon R,Hunter AM

更新日期：2016-04-01 00:00:00

abstract：PURPOSE:To assess the hydration status and level of hydration knowledge of youths at summer sports camps. METHODS:Sixty-seven active youths, 57 males (mean +/- SD, 12 +/- 2 y, 136 +/- 16 cm, 50.6 +/- 21.1 kg) and 10 females (13 +/- 2 y, 153 +/- 8 cm, 45.2 +/- 9.0 kg) participated in 4 d of sports camp. Hydration statu...

journal_title：International journal of sports physiology and performance

authors： Decher NR,Casa DJ,Yeargin SW,Ganio MS,Levreault ML,Dann CL,James CT,McCaffrey MA,Oconnor CB,Brown SW

更新日期：2008-09-01 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：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：:The maximal lactate steady state (MLSS) depicts the highest blood lactate concentration (BLC) that can be maintained over time without a continual accumulation at constant prolonged workload. In cycling, no difference in the MLSS was combined with lower power output related to peak workload (IMLSS) at 100 than at 50 r...

journal_title：International journal of sports physiology and performance

authors： Beneke R,Leithäuser RM

更新日期：2017-03-01 00:00:00

abstract：PURPOSE:To quantify the external training loads of positional groups in preseason training drills. METHODS:Thirty-three elite rugby league players were categorized into 1 of 4 positional groups: outside backs (n = 9), adjustables (n = 9), wide-running forwards (n = 9), and hit-up forwards (n = 6). Data for 8 preseason...

journal_title：International journal of sports physiology and performance

authors： Cummins C,McLean B,Halaki M,Orr R

更新日期：2017-07-01 00:00:00

abstract：PURPOSE:To investigate the intersession reliability of selected kinematic and kinetic variables during countermovement vertical jumps (CMJs). METHODS:Thirty-five men and 35 women performed CMJs on a force platform during four testing sessions each separated by 1 wk. Kinematic variables included time in the air (TIA), ...

journal_title：International journal of sports physiology and performance

authors： Moir GL,Garcia A,Dwyer GB

更新日期：2009-09-01 00:00:00

abstract：:The purpose was to develop and validate portable force-measurement devices for recording push and pull forces applied by each foot to the foot bar of a kayak and the horizontal force at the seat. A foot plate on a single-point force transducer mounted on the kayak foot bar underneath each foot allowed the push and pul...

journal_title：International journal of sports physiology and performance

authors： Nilsson JE,Rosdahl HG

更新日期：2014-03-01 00:00:00

abstract：PURPOSE:Previously it has been observed that, in well-trained 800-m athletes, VO2max is not attained during middle-distance running events on a treadmill, even when a race-type pacing strategy is adopted. Therefore, the authors investigated whether specialization in a particular running distance (400-m or 800-m) influe...

journal_title：International journal of sports physiology and performance

authors： James DV,Sandals LE,Draper SB,Maldonado-Martin S,Wood DM

更新日期：2007-06-01 00:00:00

abstract：CONTEXT:Badminton requires open and fast actions toward the shuttlecock, but there is no specific agility test for badminton players with specific movements. PURPOSE:To develop an agility test that simultaneously assesses perception and motor capacity and examine the test's concurrent and construct validity and its te...

journal_title：International journal of sports physiology and performance

authors： Loureiro Lde F Jr,de Freitas PB

更新日期：2016-04-01 00:00:00