Relationships between multidimensional competitive state anxiety and cognitive and motor subcomponents of performance.

abstract：:The aim of this study was to devise a valid performance analysis system for the assessment of the movement characteristics associated with competitive amateur boxing and assess its reliability using analysts of varying experience of the sport and performance analysis. Key performance indicators to characterise the dem...

journal_title：Journal of sports sciences

authors： Thomson E,Lamb K,Nicholas C

更新日期：2013-01-01 00:00:00

abstract：:This paper addresses the potential role of fatigue as a factor contributing to the deterioration of high level performance in ice hockey. Particularly, attention is given to the general description of different types of fatigue and the mechanisms underlying each type. Data have been presented illustrating the nature a...

journal_title：Journal of sports sciences

authors： Green HJ

更新日期：1987-01-01 00:00:00

abstract：:Despite low mineral intakes in several groups of female 'ball-game' players, investigations of blood profiles and physical performance do not indicate any evident physiological benefits of micronutrient supplementation. Nevertheless, measurements of iron status are warranted, particularly in female athletes. Iron ther...

journal_title：Journal of sports sciences

authors： Fogelholm M

更新日期：1994-07-01 00:00:00

abstract：:This study aimed to investigate the impact of mental fatigue on soccer-specific decision-making. Twelve well-trained male soccer players performed a soccer-specific decision-making task on two occasions, separated by at least 72 h. The decision-making task was preceded in a randomised order by 30 min of the Stroop tas...

journal_title：Journal of sports sciences

authors： Smith MR,Zeuwts L,Lenoir M,Hens N,De Jong LM,Coutts AJ

更新日期：2016-07-01 00:00:00

abstract：:The aim of this study is to examine the prevalence and correlates of adolescents' resistance training (RT) skill competence. Participants were 548 adolescents (14.1 ± 0.5 years) from 16 schools in New South Wales, Australia. RT skills were assessed using the Resistance Training Skills Battery. Demographics, BMI, muscu...

journal_title：Journal of sports sciences

authors： Smith JJ,DeMarco M,Kennedy SG,Kelson M,Barnett LM,Faigenbaum AD,Lubans DR

更新日期：2018-06-01 00:00:00

abstract：:In taekwondo, the stance position can potentially affect kick performance. The aim of this study was to analyse mechanical variables in the roundhouse kick in taekwondo according to three stance positions (0°, 45°, 90°). Nine experienced taekwondo athletes performed consecutive kicking trials in a random order accordi...

journal_title：Journal of sports sciences

authors： Estevan I,Jandacka D,Falco C

更新日期：2013-01-01 00:00:00

abstract：:The purpose of this investigation was to analyze the validity and reliability of an iPhone app (named: Dorsiflex) for the measurement of weight-bearing ankle dorsiflexion. To do this, twelve healthy participants (age=28.6±2.3 years) performed a weight-bearing lunge test with each leg in five separate occasions, while ...

journal_title：Journal of sports sciences

authors： Balsalobre-Fernández C,Romero-Franco N,Jiménez-Reyes P

更新日期：2019-02-01 00:00:00

abstract：:The aim of this study was to quantify the acute impact of soccer match officiating on selected physiological and physical performance measures. Twenty-four officials from the Spanish National 3rd Division participated in this study. External global positioning system and internal (heart rate) load data were collected ...

journal_title：Journal of sports sciences

authors： Castillo D,Yanci J,Cámara J,Weston M

更新日期：2016-01-01 00:00:00

abstract：:The present study examined the metabolic responses to an acute bout of football and the overall and moderating role of physical fitness on these responses, in adolescents. Thirty-six adolescents (16 girls, 20 boys; 12.6±0.5 y) completed two trials (60-min football and 60-min seated rest) separated by 7-d. Capillary bl...

journal_title：Journal of sports sciences

authors： Williams RA,Cooper S,Dring KJ,Hatch L,Morris JG,Sunderland C,Nevill ME

更新日期：2021-01-11 00:00:00

abstract：:According to Wegner's (1994) theory of ironic processes of mental control, self-instructions not to perform in a certain way, together with mental loads, can induce thoughts, emotions, and behaviours that are precisely the opposite of intention. Wegner's theory was tested against the implicit overcompensation hypothes...

journal_title：Journal of sports sciences

authors： de la Peña D,Murray NP,Janelle CM

更新日期：2008-10-01 00:00:00

abstract：UNLABELLED:The drop jump is a popular form of plyometric exercise often undertaken to enhance countermovement jump ability (jump height). Despite its popularity the effects of drop jump training on countermovement jump height are often inconsistent. Such inconsistencies may be as a result of differences in the drop jum...

journal_title：Journal of sports sciences

authors： Marshall BM,Moran KA

更新日期：2013-01-01 00:00:00

abstract：INTRODUCTION:High-Intensity Interval Training (HIIT) and Constant-Intensity Endurance Training (CIET) improves peak oxygen uptake (V̇O2) similarly in adults; but in children this remains unclear, as does the influence of maturity. METHODS:Thirty-seven boys formed three groups: HIIT (football; n = 14; 14.3 ± 3.1 years)...

journal_title：Journal of sports sciences

authors： Runacres A,Mackintosh KA,McNarry MA

更新日期：2019-11-01 00:00:00

abstract：:Fundamental movement skills (FMS) have been assessed in children in order to investigate the issues of the low proportion of children who meet physical activity (PA) guidelines and rising levels of obesity. The aim of this research was to identify whether previous or current FMS level is a better predictor of PA level...

journal_title：Journal of sports sciences

authors： Bryant ES,James RS,Birch SL,Duncan M

更新日期：2014-01-01 00:00:00

abstract：:This study investigated the effects of knee localised muscle damage on running kinematics at varying speeds. Nineteen young women (23.2 ± 2.8 years; 164 ± 8 cm; 53.6 ± 5.4 kg), performed a maximal eccentric muscle damage protocol (5 × 15) of the knee extensors and flexors of both legs at 60 rad · s(-1). Lower body kin...

journal_title：Journal of sports sciences

authors： Tsatalas T,Giakas G,Spyropoulos G,Sideris V,Lazaridis S,Kotzamanidis C,Koutedakis Y

更新日期：2013-01-01 00:00:00

abstract：:In any situation where heat production as a result of physical exercise exceeds heat elimination from the body by radiation and convection, the body will depend on sweat secretion and evaporation for its thermoregulation. Sweat secretion will reach maximal levels at high energy expenditures in the heat but will be lim...

journal_title：Journal of sports sciences

authors： Brouns F

更新日期：1991-07-01 00:00:00

abstract：:Anterior cruciate ligament (ACL) rupture, during ski-landing, is caused by excessive knee joint forces and kinematics, like anterior tibial translation, internal tibial rotation, and valgus rotation. It is not well understood how these forces/kinematics are directly related to ski-landing impact. In the present study,...

journal_title：Journal of sports sciences

authors： Yeow CH,Kong CY,Lee PV,Goh JC

更新日期：2011-08-01 00:00:00

abstract：:The aim of this study was to quantify movements of Super 12 rugby players in competition because information on elite rugby players' movements is unavailable. Players were categorized into forwards [front (n = 16) and back row (n = 15)] and backs [inside (n = 9) and outside backs (n = 7)] and their movements analysed ...

journal_title：Journal of sports sciences

authors： Duthie G,Pyne D,Hooper S

更新日期：2005-05-01 00:00:00

abstract：:A comparison of the under-18 (U-18) and under-16 (U-16) squads of the Canadian national soccer team with a representative sample of Canadians (Canada Fitness Survey, 1983) showed a tendency for the development or selection of the older players in teams of stature (U-18, 175.8 cm; U-16, 171.1 cm; CFS, 170.9 cm) and lea...

journal_title：Journal of sports sciences

authors： Leatt P,Shephard RJ,Plyley MJ

更新日期：1987-07-01 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：: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

abstract：:The rules of competitive boardsailing events were changed before the Atlanta Olympic Games. Pumping the sail (pulling repeatedly on the rig) is now allowed and the duration of races has been shortened. Eight members of the French national team (mean age 23+/-2.7 years) participated in this study. Their cardiac and met...

journal_title：Journal of sports sciences

authors： Guével A,Maïsetti O,Prou E,Dubois JJ,Marini JF

更新日期：1999-02-01 00:00:00

abstract：:We examined sexual dimorphism in the anthropometry of 68 Australasian and Pacific powerlifters (14 females, 54 males) who were competing in one of two national or international powerlifting competitions held in New Zealand. All powerlifters were assessed for 37 anthropometric dimensions by ISAK (International Society ...

journal_title：Journal of sports sciences

authors： Keogh JW,Hume PA,Pearson SN,Mellow P

更新日期：2008-03-01 00:00:00

abstract：:Blood flow changes in response to exercise have been attributed, among other factors, to the effect of vasodilators factors on the microvasculature, suggesting a close relationship between small blood vessels and conducting arteries. The main purpose of this study was to determine the relationship between the changes ...

journal_title：Journal of sports sciences

authors： Alvares TS,Oliveira GV,Soares R,Murias JM

更新日期：2020-04-01 00:00:00

abstract：:The purpose of this study was to determine the foot strike patterns (FSP), rearfoot position at initial contact (RPic, i.e., No INV/EVE) and foot rotation in children in relation to age. A total of 932 children aged 3 to 16 years participated in this study. A sagittal and frontal-plane video was recorded using a high-...

journal_title：Journal of sports sciences

authors： Latorre Román PÁ,Redondo Balboa F,Párraga Montilla J,Soto Hermoso VM,Consuegra González PJ,García Pinillos F

更新日期：2019-03-01 00:00:00

abstract：:Low-intensity exercise with blood flow restriction (BFR) is an increasingly common method of improving muscular strength and hypertrophy, and improving aerobic fitness, in clinical and athletic populations. The aim of this systematic review was to describe common approaches to determining occlusion pressures for BFR e...

journal_title：Journal of sports sciences

authors： Murray J,Bennett H,Boyle T,Williams M,Davison K

更新日期：2020-11-01 00:00:00

abstract：:The kinematics of male wheelchair rugby players (n = 8) during the final match of the 2008 Demolition Derby were assessed using two cameras (10 Hz) and a tracking method based on image-processing techniques. The players' on-court trajectory, total and accumulated distances covered, distances covered during working and...

journal_title：Journal of sports sciences

authors： Sarro KJ,Misuta MS,Burkett B,Malone LA,Barros RM

更新日期：2010-01-01 00:00:00

abstract：:While empirical evidence suggests that elite athletes have superior lifespan outcomes relative to the general population, less is known regarding their causes of death. The purpose of this study was to critically examine the mortality outcomes of deceased National Basketball Association and American Basketball Associa...

journal_title：Journal of sports sciences

authors： Lemez S,Wattie N,Lawler T,Baker J

更新日期：2018-07-01 00:00:00

abstract：:In this study, we examined the influence of internal and external attention instructions on the performance of a pitch shot by golfers who were either highly skilled (mean handicap = 4) or low skilled (mean handicap = 26). Ten golfers in each skill group used a 9-iron to pitch a ball as close as possible to an orange ...

journal_title：Journal of sports sciences

authors： Perkins-Ceccato N,Passmore SR,Lee TD

更新日期：2003-08-01 00:00:00

abstract：:The present study aimed to explore the mediating role of social factors on the associations between attachment styles and basic psychological needs satisfaction within two relational contexts. Athletes (N = 215) completed a multi-section questionnaire pertaining to attachment styles, basic needs satisfied within the c...

journal_title：Journal of sports sciences

authors： Felton L,Jowett S

更新日期：2013-01-01 00:00:00

abstract：:The aim of this study was to assess fatigue during a simulated cross-country skiing sprint competition based on skating technique. Sixteen male skiers performed a 30-m maximal skiing speed test and four 850-m heats with roller skies on a tartan track, separated by 20 min recovery between heats. Physiological variables...

journal_title：Journal of sports sciences

authors： Vesterinen V,Mikkola J,Nummela A,Hynynen E,Häkkinen K

更新日期：2009-08-01 00:00:00