Running Mechanics During the World's Most Challenging Mountain Ultramarathon.

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：: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:To assess and compare the validity of internal and external Australian football (AF) training-load measures for predicting preseason variation of match-play exercise intensity (MEI sim/min) using a variable dose-response model. METHODS:A total of 21 professional male AF players completed an 18-wk preseason mac...

journal_title：International journal of sports physiology and performance

authors： Graham SR,Cormack S,Parfitt G,Eston R

更新日期：2019-02-01 00:00:00

abstract：PURPOSE:To assess the utility of a self-paced maximal oxygen uptake (VO2max) test (SPV) in eliciting an accurate measure of VO2max in comparison with a traditional graded exercise test (GXT) during motorized treadmill exercise. DESIGN:This was a cross-sectional experimental study whereby recreationally trained men (n ...

journal_title：International journal of sports physiology and performance

authors： Faulkner J,Mauger AR,Woolley B,Lambrick D

更新日期：2015-01-01 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：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：: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:Ischemic preconditioning (IPC) through purposeful circulatory occlusion may enhance exercise performance. The value of IPC for improving performance is controversial owing to challenges with employing effective placebo controls. This study examines the efficacy of IPC versus a deceptive sham protocol for improv...

journal_title：International journal of sports physiology and performance

authors： Cheung CP,Slysz JT,Burr JF

更新日期：2019-10-11 00:00:00

abstract：PURPOSE:To compare the training-volume (TrV) distribution of Russian international-level male biathletes, female biathletes, and cross-country skiers (XC) during an annual cycle. METHODS:Day-to-day TrVs were recorded and averaged for a 5-year period for male biathletes (n = 6), female biathletes (n = 8), and XC (n = 1...

journal_title：International journal of sports physiology and performance

authors： Myakinchenko EB,Kriuchkov AS,Adodin NV,Feofilaktov V

更新日期：2020-08-19 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:Although the session rating of perceived exertion (sRPE) is primarily a marker of internal training load (TL), it may be sensitive to external TL determining factors, such as duration and volume. Thus, sRPE could provide further information on accumulated fatigue not available from markers of internal TL. There...

journal_title：International journal of sports physiology and performance

authors： Fusco A,Knutson C,King C,Mikat RP,Porcari JP,Cortis C,Foster C

更新日期：2020-02-01 00:00:00

abstract：PURPOSE:The genetic influence on the attainment of elite athlete status is well established, with a number of polymorphisms found to be more common in elite athletes than in the general population. As such, there is considerable interest in understanding whether this information can be utilized to identify future elite...

journal_title：International journal of sports physiology and performance

authors： Pickering C,Kiely J

更新日期：2020-12-03 00:00:00

abstract：PURPOSE:The influence of various factors on training-load (TL) responses in basketball has received limited attention. This study aimed to examine the temporal changes and influence of cumulative training dose on TL responses and interrelationships during basketball activity. METHODS:Ten state-level Australian male ju...

journal_title：International journal of sports physiology and performance

authors： Scanlan AT,Fox JL,Borges NR,Dascombe BJ,Dalbo VJ

更新日期：2017-02-01 00:00:00

abstract：:Evidence indicates that low-level laser therapy (LLLT) minimizes fatigue effects on muscle performance. However, the ideal LLLT dosage to improve athletes'performance during sports activities such as cycling is still unclear. Therefore, the goal of this study was to investigate the effects of different LLLT dosages on...

journal_title：International journal of sports physiology and performance

authors： Lanferdini FJ,Bini RR,Baroni BM,Klein KD,Carpes FP,Vaz MA

更新日期：2018-01-01 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:To assess differences in event-specific specialization between elite African and non-African male marathon runners based on age, performance, and career length. METHODS:The top 90 African marathoners from 2001 to 2015 were compared with the top 90 non-African marathoners from the same time period across variou...

journal_title：International journal of sports physiology and performance

authors： Noble TJ,Chapman RF

更新日期：2018-01-01 00:00:00

abstract：PURPOSE:The main objective of this study was to investigate the efficacy of both programmed (speed, agility, and quickness; SAQ) and random (small-sided games; SSG) conditioning methods on selected neuromuscular and physical performance variables. METHODS:Twenty volunteers (21.1 +/- 4.0 y, 1.71 +/- 0.09 m, 66.7 +/- 9....

journal_title：International journal of sports physiology and performance

authors： Polman R,Bloomfield J,Edwards A

更新日期：2009-12-01 00:00:00

abstract：PURPOSE:Elite endurance athletes may train in a polarized fashion, such that their training-intensity distribution preserves autonomic balance. However, field data supporting this are limited. METHODS:The authors examined the relationship between heart-rate variability and training-intensity distribution in 9 elite ro...

journal_title：International journal of sports physiology and performance

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

更新日期：2014-11-01 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：PURPOSE:The purpose of this study was to evaluate differences in hamstring activation during lower body resistance training exercises. This study also sought to assess differences in hamstring-to-quadriceps muscle activation ratios and gender differences therein. METHODS:A randomized repeated measures design was used ...

journal_title：International journal of sports physiology and performance

authors： Ebben WP

更新日期：2009-03-01 00:00:00

abstract：PURPOSE:Stroboscopic training is suggested to improve visuomotor abilities in sports. However, previous research has primarily focused on untrained participants and only considered behavioral data. Because visuomotor performance is substantially determined by neural visual processes, this study aimed to examine the eff...

journal_title：International journal of sports physiology and performance

authors： Hülsdünker T,Rentz C,Ruhnow D,Käsbauer H,Strüder HK,Mierau A

更新日期：2019-03-01 00:00:00

abstract：PURPOSE:To understand the validity of differential ratings of perceived exertion (dRPE) as a measure of girls' training and match internal loads. METHODS:Using the centiMax scale (CR100), session dRPE for breathlessness (sRPE-B) and leg muscle exertion (sRPE-L) were collected across a season of training (soccer, resis...

journal_title：International journal of sports physiology and performance

authors： Wright MD,Songane F,Emmonds S,Chesterton P,Weston M,Mclaren SJ

更新日期：2020-09-18 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:Critical speed (CS) and supra-CS distance capacity (D') are useful metrics for monitoring changes in swimmers' physiological and performance capacities. However, the utility of these metrics across a season has not been systematically evaluated in high level swimmers. METHODS:Twenty-seven swimmers (18 female; ...

journal_title：International journal of sports physiology and performance

authors： Mitchell LJG,Rattray B,Wu P,Saunders PU,Pyne DB

更新日期：2019-07-01 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:To assess the measures of salivary free testosterone and cortisol concentrations across selected rugby union matches according to game outcome. METHODS:Twenty-two professional male rugby union players were studied across 6 games (3 wins and 3 losses). Hormone samples were taken 40 min before the game and 15 mi...

journal_title：International journal of sports physiology and performance

authors： Gaviglio CM,Crewther BT,Kilduff LP,Stokes KA,Cook CJ

更新日期：2014-03-01 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:To describe the physical and technical demands of rugby league 9s (RL9s) match play for positional groups. METHODS:Global positioning system data were collected during 4 games from 16 players from a team competing in the Auckland RL9s tournament. Players were classified into positional groups (pivots, outside ...

journal_title：International journal of sports physiology and performance

authors： Kempton T,Coutts AJ

更新日期：2015-09-01 00:00:00

abstract：PURPOSE:Prior research has illustrated that high volumes of aerobic exercise result in a reduction in basal concentrations of testosterone in men. Those studies were mostly conducted on recreational runners and identified reduced testosterone, but not concentrations low enough to be considered pathological. Therefore, ...

journal_title：International journal of sports physiology and performance

authors： Hooper DR,Kraemer WJ,Stearns RL,Kupchak BR,Volk BM,DuPont WH,Maresh CM,Casa DJ

更新日期：2019-02-01 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