Standardization indices of cardiac hypertrophy in weight lifters.

abstract：:While previous studies highlighted the importance of the different motivations for doing sports as proposed by self-determination theory, less emphasis has been put on the simultaneous presence of multiple motivations within the same individual. Therefore, the present study aimed to investigate the complex interaction...

journal_title：Journal of sports sciences

authors： Tóth-Király I,Amoura C,Bőthe B,Orosz G,Rigó A

更新日期：2020-04-01 00:00:00

abstract：:Despite a growing body of evidence on the positive impact of sports science for golf, there is still a paucity of research investigating the "perceptions" and "practices" of high-skilled golfers. Professional Golfers' Association Assistant Professionals (future-qualified coaches; n = 430) were surveyed on their "perce...

journal_title：Journal of sports sciences

authors： Wells JET,Langdown BL

更新日期：2020-04-01 00:00:00

abstract：:The aim of this study was to examine the occurrence of the sticking region by examining how three different grip widths affect the sticking region in powerlifters' bench press performance. It was hypothesised that the sticking region would occur at the same joint angle of the elbow and shoulder independent of grip wid...

journal_title：Journal of sports sciences

authors： Gomo O,Van Den Tillaar R

更新日期：2016-01-01 00:00:00

abstract：:The use of high-resolution physical activity intensity spectra obtained from accelerometry can improve knowledge of associations with health and development beyond the use of traditional summary measures of intensity. The aim of the present study was to compare three different approaches for determining associations f...

journal_title：Journal of sports sciences

authors： Aadland E,Nilsen AKO,Andersen LB,Rowlands AV,Kvalheim OM

更新日期：2020-09-20 00:00:00

abstract：:Ghrelin is a hormone that stimulates hunger. Intense exercise has been shown to temporarily suppress hunger after exercise. In the present study, we investigated whether post-exercise hunger suppression is mediated by reduced plasma total ghrelin concentrations. Nine men and nine women participated in the study. Their...

journal_title：Journal of sports sciences

authors： Burns SF,Broom DR,Miyashita M,Mundy C,Stensel DJ

更新日期：2007-04-01 00:00:00

abstract：:The purpose of this study was to examine the effects of calendar and skeletal age, anthropometric dimensions, training history and their interactions on vertical jumping height and horizontal overhead throwing velocity in a cross-section of 318 young male athletes (age range 9-16 years) participating in cross-country ...

journal_title：Journal of sports sciences

authors： Viitasalo JT,Rahkila P,Osterback L,Alén M

更新日期：1992-10-01 00:00:00

abstract：:The birth date distributions of elite male and female footballers in Australia, from junior youth (age 14 and upwards) to senior (professional) players, were examined. A statistically significant relative age effect was found among junior male players, reducing in effect with increasing age. An inter-year relative age...

journal_title：Journal of sports sciences

authors： van den Honert R

更新日期：2012-01-01 00:00:00

abstract：:We aimed to assess the cardiovascular responses and locomotory demands of male referees during diverse elite, international, basketball matches, and to investigate the influence of moderating factors (competition sex, level and stage) on these demands. Cardiovascular and locomotory responses were monitored in 123 elit...

journal_title：Journal of sports sciences

authors： Suárez Iglesias D,Leicht AS,Pojskić H,Vaquera A

更新日期：2020-11-25 00:00:00

abstract：:Chronic foot and ankle injuries are common in dancers; understanding how lower extremity loading changes in response to altered task goals can be beneficial for rehabilitation and injury prevention strategies. The purpose of this study was to examine mechanical demands during jump take-offs when the task goal was modi...

journal_title：Journal of sports sciences

authors： Jarvis DN,Kulig K

更新日期：2020-08-01 00:00:00

abstract：:Athletes have been shown to have greater movement imagery abilities than non-athletes. However, since these differences were observed using questionnaires where participants subjectively judged the vividness of performing imagined movements, it is possible that responses could be biased by other factors such as social...

journal_title：Journal of sports sciences

authors： Madan CR,Singhal A

更新日期：2014-01-01 00:00:00

abstract：:The purpose was to examine changes in the perceptual responses to lifting a very low load (15% one repetition maximum (1RM)) with and without (15/0) different pressures [40% (15/40) and 80% (15/80) arterial occlusion pressure] and compare that to traditional high load (70/0) resistance exercise. Ratings of perceived e...

journal_title：Journal of sports sciences

authors： Mattocks KT,Mouser JG,Jessee MB,Buckner SL,Dankel SJ,Bell ZW,Abe T,Bentley JP,Loenneke JP

更新日期：2019-08-01 00:00:00

abstract：:Two experiments were conducted to examine the hypothesis that learning by analogy will invoke characteristics of an implicit mode of motor learning. In the first experiment, table tennis novices learned to hit forehand topspin implicitly, explicitly or by analogy. The results showed that the analogy and implicit learn...

journal_title：Journal of sports sciences

authors： Liao CM,Masters RS

更新日期：2001-05-01 00:00:00

abstract：:Comprehension of a narrated diagram entail complex cognitive processing as learner is challenged to extract the orally evoked information. The present experiment examined the effects of 2 different forms of attention guidance - bottom-up and top-down - on comprehension performance, cognitive load investment, and motiv...

journal_title：Journal of sports sciences

authors： Khacharem A

更新日期：2017-06-01 00:00:00

abstract：:In rapid interceptive actions such as hitting a baseball, cricket ball or tennis ball, ball speed varies between trials, and players have to compensate the time lag by controlling the moment of movement onset and movement duration. Previous studies have found that these two variables can flexibly co-vary and are robus...

journal_title：Journal of sports sciences

authors： Ijiri T,Shinya M,Nakazawa K

更新日期：2015-01-01 00:00:00

abstract：:The training and competitive programmes of elite athletes incorporate travel schedules, often long journeys, across multiple time zones. In such cases, travel causes both transient fatigue and a malaise known as "jet-lag" that persists for some days. Jet-lag is due to the disturbance of the body's circadian rhythms: d...

journal_title：Journal of sports sciences

authors： Reilly T,Waterhouse J,Burke LM,Alonso JM,International Association of Athletics Federations.

更新日期：2007-01-01 00:00:00

abstract：:When analysing physical activity (PA) levels using accelerometry, the epoch setting is critical to capture intensity-specific PA correctly. The aim of the present study was to investigate the PA intensity signatures related to metabolic health in children using different epoch settings. A sample of 841 Norwegian child...

journal_title：Journal of sports sciences

authors： Aadland E,Andersen LB,Anderssen SA,Resaland GK,Kvalheim OM

更新日期：2020-02-01 00:00:00

abstract：:We tested a hypothetical model that examined both the effects of implicit theories of ability on the judgement of cheating acceptability in a physical education context and the mediating role of the achievement goals defined in the social-cognitive model of achievement motivation. Data were collected from 477 middle-s...

journal_title：Journal of sports sciences

authors： Corrion K,D'Arripe-Longueville F,Chalabaev A,Schiano-Lomoriello S,Roussel P,Cury F

更新日期：2010-06-01 00:00:00

abstract：:The current study sought to examine the construct validity of the Resistance Training Skills Battery for Children (RTSBc), a movement screen purported to assess resistance training skill in children. Children aged 7-10 years (n = 27, 21 males, 6 females) undertook measures of resistance training skill via the RTSBc, m...

journal_title：Journal of sports sciences

authors： Duncan MJ,Lawson C,Hurst J,Tallis J,Jones V,Eyre ELJ

更新日期：2018-09-01 00:00:00

abstract：:The aim of this study was to investigate the physical demands of international rugby union. Five games in the 1989-90 Five Nations Championship were analysed using video-recordings of live television transmissions. When the ball was in open play, the average running pace of players central to the action ranged from 5 ...

journal_title：Journal of sports sciences

authors： McLean DA

更新日期：1992-06-01 00:00:00

abstract：:Generally, swimmers pace themselves using their own judgement and the poolside clock during swimming training, fitness testing protocols or scientific investigation. The Aquapacer is a new pacing device that can be used to pace the swimming speed or stroke rate of the swimmer. The aims of this study were to determine ...

journal_title：Journal of sports sciences

authors： Thompson KG,MacLaren DP,Lees A,Atkinson G

更新日期：2002-07-01 00:00:00

abstract：:Using a two-study approach, we examined a methodology for objectively depicting team performance and form in a professional rugby union side. Study 1 developed standardized indicators to examine a team's performance in a single match relative to their previous matches over a domestic season via a performance report an...

journal_title：Journal of sports sciences

authors： Jones NM,James N,Mellalieu SD

更新日期：2008-05-01 00:00:00

abstract：:We investigated changes in cardiorespiratory performance, BMI and leisure-time physical activity among Finnish adolescents from 2003 to 2010. In addition, we compared cardiorespiratory performance levels between normal weight and overweight adolescents, grouped according to their physical activity. Participants were a...

journal_title：Journal of sports sciences

authors： Palomäki S,Heikinaro-Johansson P,Huotari P

更新日期：2015-01-01 00:00:00

abstract：:The pre-event warm-up or "priming" routine for optimising cycling performance is not well-defined or uniform to a specific event. We aimed to determine the effects of varying the intensity of priming on 3 km cycling performance. Ten endurance-trained male cyclists completed four 3 km time-trials (TT) on four separate ...

journal_title：Journal of sports sciences

authors： McIntyre JP,Kilding AE

更新日期：2015-01-01 00:00:00

abstract：:The study examined Yo-Yo intermittent recovery level 2 (YYIR2) and submaximal YYIR1 test performances in 172 male semi-professional football players (age; 25.8 ± 4.1 years) representing all teams in a top league at pre-season, start-season, mid-season and end-season. YYIR2 performance was 847 ± 227 m (±SD) at pre-seas...

journal_title：Journal of sports sciences

authors： Mohr M,Krustrup P

更新日期：2014-01-01 00:00:00

abstract：:This study was conducted to determine if the Polar FT40 could accurately track changes in maximal oxygen consumption (VO2max) in a group of female soccer players. Predicted VO2max (pVO2max) via the Polar FT40 and observed VO2max (aVO2max) from a maximal exercise test on a treadmill were determined for members of a col...

journal_title：Journal of sports sciences

authors： Esco MR,Snarr RL,Williford HN

更新日期：2014-01-01 00:00:00

abstract：:The aim of this study was to examine acute physiological responses and time-motion characteristics associated with three different small-sided soccer game formats in youth players. Sixteen male soccer players aged 16.3+/-0.6 years (mean+/-s) completed three variations of a small-sided game (i.e. 2 vs. 2, 4 vs. 4, and ...

journal_title：Journal of sports sciences

authors： Hill-Haas SV,Dawson BT,Coutts AJ,Rowsell GJ

更新日期：2009-01-01 00:00:00

abstract：:One of the first principles of cricket batsmanship that is coached from a young age is to play with a straight bat. Limited studies to date have examined whether top international batsmen use this traditionally described technique. Accordingly, we performed a descriptive, observational study of the backlift technique ...

journal_title：Journal of sports sciences

authors： Noorbhai MH,Noakes TD

更新日期：2016-10-01 00:00:00

abstract：:The spirit of sport, which encompasses intrinsic values associated with sport participation, is core to the World Anti-Doping Agency's (WADA) strategy for doping prevention. The contribution of these values to clean sport has yet to be established. In this study, athletes rated the importance of spirit of sport values...

journal_title：Journal of sports sciences

authors： Mortimer H,Whitehead J,Kavussanu M,Gürpınar B,Ring C

更新日期：2020-10-22 00:00:00

abstract：:The aim of the present study was to determine the effect of post-exercise ingestion of a unique, high molecular weight glucose polymer solution, known to augment gastric emptying and post-exercise muscle glycogen re-synthesis, on performance during a subsequent bout of intense exercise. On three randomized visits, eig...

journal_title：Journal of sports sciences

authors： Stephens FB,Roig M,Armstrong G,Greenhaff PL

更新日期：2008-01-15 00:00:00

abstract：:To determine the effect of circadian rhythm on neuromuscular responses and kinematics related to physical tennis performance, after a standardised warm-up, 13 highly competitive male tennis players were tested twice for serve velocity/accuracy (SVA), countermovement vertical jump (CMJ), isometric handgrip strength (IS...

journal_title：Journal of sports sciences

authors： López-Samanes Á,Moreno-Pérez D,Maté-Muñoz JL,Domínguez R,Pallarés JG,Mora-Rodriguez R,Ortega JF

更新日期：2017-11-01 00:00:00