Bioimpedance Vector Analysis of Elite, Subelite, and Low-Level Male Volleyball Players.

abstract：PURPOSE:To investigate if error-correction-processing (ECP) algorithms in timing lights are able to eliminate or reduce measurement errors (MEs) and false signals due to swinging arms or legs. METHODS:First, a dummy was used to check if ECP generally works. Second, 15 male sport students performed sprints over 5 and 1...

journal_title：International journal of sports physiology and performance

authors： Altmann S,Ringhof S,Becker B,Woll A,Neumann R

更新日期：2018-11-26 00:00:00

abstract：PURPOSE:To examine the effects of several matches per day on running performance and cardiovascular stress in referees during a national Rugby Sevens championship. METHODS:Seven referees, who refereed 3 matches/ day, were monitored by GPS during 21 matches. RESULTS:Referees' movement patterns were relatively stable f...

journal_title：International journal of sports physiology and performance

authors： Suarez-Arrones L,Núñez J,Munguía-Izquierdo D,Portillo J,Mendez-Villanueva A

更新日期：2013-09-01 00:00:00

abstract：PURPOSE:The time-motion characteristics and the within-athlete variability in movement patterns were quantified for the same male fast bowler playing One Day International (ODI) cricket matches (n=12). METHODS:A number of different time motion characteristics were monitored using a portable 5-Hz global positioning sys...

journal_title：International journal of sports physiology and performance

authors： Petersen C,Pyne DB,Portus MR,Karppinen S,Dawson B

更新日期：2009-06-01 00:00:00

abstract：PURPOSE:To identify the effect of additional elastic force on the kinetic and kinematic characteristics, as well as the magnitude of leg stiffness, during the performance of accentuated countermovement jumps (CMJs). METHODS:Fifteen trained male subjects performed 3 types of CMJ including free CMJ (FCMJ; ie, body weigh...

journal_title：International journal of sports physiology and performance

authors： Aboodarda SJ,Yusof A,Abu Osman NA,Thompson MW,Mokhtar AH

更新日期：2013-03-01 00:00:00

abstract：:Intensive training periods may negatively influence immune function, but the immunological consequences of specific high-intensity-training (HIT) prescriptions are not well defined. PURPOSE:To explore whether 3 different HIT prescriptions influence multiple health-related biomarkers and whether biomarker responses to...

journal_title：International journal of sports physiology and performance

authors： Hanstock HG,Govus AD,Stenqvist TB,Melin AK,Sylta Ø,Torstveit MK

更新日期：2019-11-21 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 examine the difference in distance measured by two global positioning system (GPS) units of the same model worn by the same player while performing movements common to team sports. METHODS:Twenty elite Australian football players completed two trials of the straight line movement (10, 20, 40 m) at four spee...

journal_title：International journal of sports physiology and performance

authors： Jennings D,Cormack S,Coutts AJ,Boyd LJ,Aughey RJ

更新日期：2010-12-01 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：PURPOSE:To examine the effect of caffeine supplementation on dribbling speed in elite female and male basketball players. METHODS:A double-blind, counterbalanced, randomized, crossover design was utilized. Elite basketball players (n = 21; female, n = 10; male, n = 11; age = 18.3 ± 3.3 yr) completed placebo (3 mg·kg-1...

journal_title：International journal of sports physiology and performance

authors： Scanlan AT,Dalbo VJ,Conte D,Stojanović E,Stojiljković N,Stanković R,Antić V,Milanović Z

更新日期：2019-07-01 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：PURPOSE:To establish the validity of smartphone photoplethysmography (PPG) and heart-rate sensor in the measurement of heart-rate variability (HRV). METHODS:29 healthy subjects were measured at rest during 5 min of guided breathing and normal breathing using smartphone PPG, a heart-rate chest strap, and electrocardiog...

journal_title：International journal of sports physiology and performance

authors： Plews DJ,Scott B,Altini M,Wood M,Kilding AE,Laursen PB

更新日期：2017-11-01 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：:This study investigated the ergogenic effects of a commercial energy drink (Red Bull) or an equivalent dose of anhydrous caffeine in comparison with a noncaffeinated control beverage on cycling performance. Eleven trained male cyclists (31.7 ± 5.9 y 82.3 ± 6.1 kg, VO2max = 60.3 ± 7.8 mL · kg-1 · min-1) participated in...

journal_title：International journal of sports physiology and performance

authors： Quinlivan A,Irwin C,Grant GD,Anoopkumar-Dukie S,Skinner T,Leveritt M,Desbrow B

更新日期：2015-10-01 00:00:00

abstract：:Apollo 13 was initially looking like it would be the smoothest flight ever. After the explosion of an oxygen tank, however, the astronauts were close to spending the rest of their lives in rotation around the planet. This well-known incident is used to further discuss the link, or lack thereof, between sport-science r...

journal_title：International journal of sports physiology and performance

authors： Buchheit M

更新日期：2017-09-01 00:00:00

abstract：PURPOSE:To assess the net effects of strength training on middle- and long-distance performance through a meta-analysis of the available literature. METHODS:Three databases were searched, from which 28 of 554 potential studies met all inclusion criteria. Standardized mean differences (SMDs) were calculated and weighte...

journal_title：International journal of sports physiology and performance

authors： Berryman N,Mujika I,Arvisais D,Roubeix M,Binet C,Bosquet L

更新日期：2018-01-01 00:00:00

abstract：PURPOSE:The purpose of this study was to analyze the effects of high-level competition on salivary free cortisol, countermovement jump (CMJ), and rating of perceived exertion (RPE) and the relationships between these fatigue indicators in a group of elite middle- and long-distance runners. METHOD:The salivary free cor...

journal_title：International journal of sports physiology and performance

authors： Balsalobre-Fernández C,Tejero-González CM,del Campo-Vecino J

更新日期：2014-09-01 00:00:00

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：PURPOSE:Self-report (SR) has been the primary method used to assess fluid intake during endurance events, but unfortunately, little is known about the validity of SR. The purpose of this study was to compare SR fluid intake with direct measurement (DM) during a 70.3-mile triathlon. METHODS:Fifty-three (42 men, 11 wome...

journal_title：International journal of sports physiology and performance

authors： Wilson PB,Rhodes GS,Ingraham SJ

更新日期：2015-07-01 00:00:00

abstract：PURPOSE:The aim of this study was to compare VO2 kinetics during constant power cycle exercise measured using a conventional facemask (CM) or a respiratory snorkel (RS) designed for breath-by-breath analysis in swimming. METHODS:VO2 kinetics parameters-obtained using CM or RS, in randomized counterbalanced order-were ...

journal_title：International journal of sports physiology and performance

authors： Reis JF,Millet GP,Malatesta D,Roels B,Borrani F,Vleck VE,Alves FB

更新日期：2010-09-01 00:00:00

abstract：PURPOSE:To investigate the influence of prior knowledge of exercise duration on the pacing strategies employed during game-based activities. METHODS:Twelve semiprofessional team-sport athletes (mean ± SD age 22.8 ± 2.1 y) participated in this study. Players performed 3 small-sided games in random order. In one conditi...

journal_title：International journal of sports physiology and performance

authors： Gabbett TJ,Walker B,Walker S

更新日期：2015-04-01 00:00:00

abstract：:Recent psychophysiological models of endurance performance explained that pacing strategies and exercise-intensity regulation influence cyclists' ability to produce high mean power output (PO) during time trials (TTs). However, the relationships between these pacing strategies and psychological parameters of the athle...

journal_title：International journal of sports physiology and performance

authors： Ouvrard T,Groslambert A,Grappe F

更新日期：2019-04-01 00:00:00

abstract：PURPOSE:To investigate the discrepancy between coach and athlete perceptions of internal load and notational analysis of external load in elite junior tennis. METHODS:Fourteen elite junior tennis players and 6 international coaches were recruited. Ratings of perceived exertion (RPEs) were recorded for individual drill...

journal_title：International journal of sports physiology and performance

authors： Murphy AP,Duffield R,Kellett A,Reid M

更新日期：2014-09-01 00:00:00

abstract：PURPOSE:To examine the reliability of field-based running-specific measures of neuromuscular function assessed using global positioning system (GPS)-embedded accelerometers and their responses to 3 typical conditioned sessions (ie, strength, endurance, and speed) in elite soccer players. METHODS:Before and immediately...

journal_title：International journal of sports physiology and performance

authors： Buchheit M,Lacome M,Cholley Y,Simpson BM

更新日期：2018-05-01 00:00:00

abstract：:Despite some advances, it remains largely unknown how the millions of variations in the human genome influence athletic performance (especially in endurance events), and no single genetic test can really predict sports talent. However, there is experimental evidence from animal research that selecting for even a simpl...

journal_title：International journal of sports physiology and performance

authors： Sanchis-Gomar F,Pareja-Galeano H,Rodriguez-Marroyo JA,de Koning JJ,Lucia A,Foster C

更新日期：2016-10-01 00:00:00

abstract：PURPOSE:To examine the activity profiles of elite male competitors during international Taekwondo competition in relation to fin, feather, and heavy weight categories. METHODS:Twelve male Taekwondo competitors equally representing fin, feather, and heavy weight divisions were studied during the 2005 World Taekwondo Ch...

journal_title：International journal of sports physiology and performance

authors： Bridge CA,Jones MA,Drust B

更新日期：2011-09-01 00:00:00

abstract：PURPOSE:To investigate whether the combination of a soccer training session, plyometric training, and change-of-direction (COD) exercises would enhance soccer ability to a greater extent than training on its own in youth soccer players. METHODS:Thirty-one youth players participated in this study (age: 12 [0.8] y). Pla...

journal_title：International journal of sports physiology and performance

authors： Michailidis Y,Tabouris A,Metaxas T

更新日期：2019-03-01 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：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

abstract：:Purpose: The hyperbolic distance-time relationship can be used to profile running performance and establish critical speed (CS) and D' (the curvature constant of the speed-time relationship). Typically, to establish these parameters, multiple (3+) performance trials are required, which can be highly fatiguing and limi...

journal_title：International journal of sports physiology and performance

authors： Kordi M,Menzies C,Galbraith A

更新日期：2019-05-01 00:00:00

abstract：PURPOSE:To examine variations in neuromuscular and hormonal status and their relationship to performance throughout a season of elite Australian Rules Football (ARF). METHODS:Fifteen elite ARF players performed a single jump (CMJ1) and 5 repeated countermovement jumps (CMJ5), and provided saliva samples for the analys...

journal_title：International journal of sports physiology and performance

authors： Cormack SJ,Newton RU,McGuigan MR,Cormie P

更新日期：2008-12-01 00:00:00