The effect of combined self- and expert-modelling on the performance of the double leg circle on the pommel horse.

abstract：:In this study, we examined the visual search strategies used during observation of video and point-light display models. We also assessed the relative effectiveness of video and point-light models in facilitating the learning of task outcomes and movement patterns. Twenty-one female novice soccer players were divided ...

journal_title：Journal of sports sciences

authors： Horn RR,Williams AM,Scott MA

更新日期：2002-03-01 00:00:00

abstract：:In the present study, we investigated the accuracy of offside judgements of assistant referees in the English Premier League. The moment in the match, the position and movement speed of the assistant referee, attacker and second-last defender, together with the angle of view for the assistant referee were all consider...

journal_title：Journal of sports sciences

authors： Catteeuw P,Gilis B,Wagemans J,Helsen W

更新日期：2010-03-01 00:00:00

abstract：:The suitability of Gray's (1975) three-factor arousal theory as a model of human performance under stress was investigated in a study of basketball free-throw shooting. Free-throw attempts, made by members of an NCAA Division I men's varsity team, were videotaped during one full season. On the basis of Gray's theory, ...

journal_title：Journal of sports sciences

authors： Whitehead R,Butz JW,Kozar B,Vaughn RE

更新日期：1996-10-01 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：:High Intensity Interval Training (HIIT) may be effective for accumulating VPA. However, the contribution of HIIT to overall physical activity is unknown. Our primary aim was to explore the impact of school-based HIIT on physical activity. The secondary aim was to explore within-individual changes in physical activity ...

journal_title：Journal of sports sciences

authors： Costigan SA,Ridgers ND,Eather N,Plotnikoff RC,Harris N,Lubans DR

更新日期：2018-05-01 00:00:00

abstract：:The aim of this study was to determine whether endurance training in athletes induces airway inflammation and pulmonary function disorders. Respiratory pattern and function were analysed in ten healthy endurance runners at rest, during sub-maximal exercise, and during the recovery. Inflammatory cells and metabolites (...

journal_title：Journal of sports sciences

authors： Denguezli M,Ben Chiekh I,Ben Saad H,Zaouali-Ajina M,Tabka Z,Abdelkrim Z

更新日期：2008-10-01 00:00:00

abstract：:The purpose of this study was to examine the influence of a carbohydrate-rich meal on post-prandial metabolic responses and skeletal muscle glycogen concentration. After an overnight fast, eight male recreational/club endurance runners ingested a carbohydrate (CHO) meal (2.5 g CHO x kg(-1) body mass) and biopsies were...

journal_title：Journal of sports sciences

authors： Chryssanthopoulos C,Williams C,Nowitz A,Bogdanis G

更新日期：2004-11-01 00:00:00

abstract：:This study examined the validity of the Actical accelerometer step count and energy expenditure (EE) functions in healthy young adults. Forty-three participants participated in study 1. Actical step counts were compared to actual steps taken during a 200 m walk around an indoor track at self-selected pace and during t...

journal_title：Journal of sports sciences

authors： Johnson M,Meltz K,Hart K,Schmudlach M,Clarkson L,Borman K

更新日期：2015-01-01 00:00:00

abstract：:A regression analysis of competitors' tournament results in relation to their world rankings was proposed to identify the effect of home advantage in international 'grand-slam' tennis and 'major' golf tournaments. The results provided little evidence of home advantage in either the grand-slam tennis or the golf tourna...

journal_title：Journal of sports sciences

authors： Nevill AM,Holder RL,Bardsley A,Calvert H,Jones S

更新日期：1997-08-01 00:00:00

abstract：:The aim of this study was to determine whether a relationship exists between stroke parameters and critical swimming speed (which is defined as the speed that can theoretically be maintained without exhaustion). Stroke parameters (stroke rate and length) and velocity were recorded for each 25-m length during a control...

journal_title：Journal of sports sciences

authors： Barden JM,Kell RT

更新日期：2009-02-01 00:00:00

abstract：:This study aimed to evaluate the autonomic modulation of heart rate in sedentary paraplegics and paraplegic wheelchair basketball players with thoracic spinal cord injury below T6. Seven paraplegic wheelchair basketball players (active paraplegic group), five paraplegics who were not involved in regular exercise (sede...

journal_title：Journal of sports sciences

authors： Zamunér AR,Silva E,Teodori RM,Catai AM,Moreno MA

更新日期：2013-01-01 00:00:00

abstract：:The aim of the current study was to establish which indicators of mobility are associated with successful wheelchair rugby performance and determine whether these indicators differed across classification. Data were collected from 11 international teams during 30 matches (353 match observations) using a radio-frequenc...

journal_title：Journal of sports sciences

authors： Rhodes JM,Mason BS,Malone LA,Goosey-Tolfrey VL

更新日期：2015-01-01 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 Drinkwater-Ross anthropometric fractionation of body mass (mass = sigma skeletal, residual, fat and muscle masses), lean body mass (LBM = sigma skeletal, residual and muscle masses) and fat mass (FM) were compared with the measured body mass, together with the densitometrically estimated fat-free mass (FFM) and fa...

journal_title：Journal of sports sciences

authors： Withers RT,Craig NP,Ball CT,Norton KI,Whittingham NO

更新日期：1991-10-01 00:00:00

abstract：:The aim of the present study was to test the hypothesis that upper body aerobically trained athletes (kayak canoeists) would have greater left ventricular wall thickness, but similar left ventricular diastolic chamber dimensions, compared with recreationally active and sedentary men. Ultrasound echocardiography was us...

journal_title：Journal of sports sciences

authors： Gates PE,Campbell IG,George KP

更新日期：2004-09-01 00:00:00

abstract：:The 100 ms ruling for false start disqualification at athletic competitions governed by the International Association of Athletics Federations has been in force since the early 1990s. Throughout this period, there have been marked changes to the rules that govern the disqualification of athletes from sprint events inc...

journal_title：Journal of sports sciences

authors： Brosnan KC,Hayes K,Harrison AJ

更新日期：2017-05-01 00:00:00

abstract：:The present study aimed to clarify the effects of oncoming target velocities on the ability of rapid force production and accuracy and variability of simultaneous control of both force production intensity and timing. Twenty male participants (age: 21.0 ± 1.4 years) performed rapid gripping with a handgrip dynamometer...

journal_title：Journal of sports sciences

authors： Ohta Y

更新日期：2017-12-01 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：:The use of dieting, rapid weight loss, and frequent weight fluctuation among athletes competing in weight-class and leanness sports have been considered a problem for years, but the extent of the problem and the health and performance consequences have yet to be fully examined. Most studies examining these issues have...

journal_title：Journal of sports sciences

authors： Sundgot-Borgen J,Garthe I

更新日期：2011-01-01 00:00:00

abstract：:Front crawl swimmers often restrict the number of breaths they take during a race because of the possible adverse effects of the breathing action on resistance or stroke mechanics. The aim of this study was to determine whether differences exist in the kinematics of the trunk and upper extremity used during preferred-...

journal_title：Journal of sports sciences

authors： Payton CJ,Bartlett RM,Baltzopoulos V,Coombs R

更新日期：1999-09-01 00:00:00

abstract：:In an effort to evaluate the mechanisms underpinning performance in alpine ski racing, researchers have focused on the predictive validity of measures derived from fitness assessments. However, a limitation of this literature is the absence of practice time, since prolonged training may naturally develop specific fitn...

journal_title：Journal of sports sciences

authors： DeCouto BS,Fawver B,Taylor T,Williams AM

更新日期：2020-09-20 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：:We hypothesised that habitual physical activity (PA) together with progressive endurance training contributes to the differences in training response (Δ[V(·)]O(2max)) in healthy and physically active male participants. Twenty volunteers (age 30±3 years and [V(·)]O(2max) 54±7 ml·kg⁻¹·min⁻¹) participated in an eight-wee...

journal_title：Journal of sports sciences

authors： Hautala A,Martinmaki K,Kiviniemi A,Kinnunen H,Virtanen P,Jaatinen J,Tulppo M

更新日期：2012-01-01 00:00:00

abstract：:Using a randomised cross-over design, free-living lunch intake and subjective appetite were examined in 10 children (9.8 ± 0.6 years) following high-intensity interval training (HIIT) versus a control sedentary (SED) period, within a school setting. The 22-min HIIT took place during a regular PE lesson and consisted o...

journal_title：Journal of sports sciences

authors： Morris A,Cramb R,Dodd-Reynolds CJ

更新日期：2018-02-01 00:00:00

abstract：:The study examined the "micro-structure" of football practice and the "macro-structure" of participation history of female professional football players. Participants were 29 German 1st league (Bundesliga) players, 14 of whom played on the senior national team (Olympic Champion in 2016). A questionnaire recorded the p...

journal_title：Journal of sports sciences

authors： Güllich A

更新日期：2019-06-01 00:00:00

abstract：:Twenty specialist marathon runners and 23 specialist ultra-marathon runners underwent maximal exercise testing to determine the relative value of maximum oxygen consumption (VO2max), peak treadmill running velocity, running velocity at the lactate turnpoint, VO2 at 16 km h-1, % VO2max at 16 km h-1, and running time in...

journal_title：Journal of sports sciences

authors： Noakes TD,Myburgh KH,Schall R

更新日期：1990-04-01 00:00:00

abstract：:Youth athletes are known to be at high risk of musculoskeletal (MSK) injuries. Children in developed countries are increasingly adopting a sedentary lifestyle. Although some risk factors related to sports activities have been reported, the effect of lifestyle (i.e. screen time behaviour) on MSK pain in youth athletes ...

journal_title：Journal of sports sciences

authors： Sekiguchi T,Hagiwara Y,Momma H,Tsuchiya M,Kuroki K,Kanazawa K,Yabe Y,Yoshida S,Koide M,Itaya N,Itoi E,Nagatomi R

更新日期：2018-08-01 00:00:00

abstract：:An evaluation of a six-week Combined minimal footwear transition and gait-retraining combination vs. gait retraining only on impact characteristics and leg stiffness. Twenty-four trained male runners were randomly assigned to either (1) Minimalist footwear transition Combined with gait-retraining over a six-week perio...

journal_title：Journal of sports sciences

authors： Warne JP,Smyth BP,Fagan JO,Hone ME,Richter C,Nevill AM,Moran KA,Warrington GD

更新日期：2017-08-01 00:00:00

abstract：:The use of large cross-sectional norms on Brazilian children and youths aged 7 to 18 years within a six level competition plan helps to assess development status and monitor change. Non-athletic prototypes for comparative purposes are illustrated by the use of the lowest competitive level of 18 year olds to assess dif...

journal_title：Journal of sports sciences

authors： Matsudo VK,Rivet RE,Pereira MH

更新日期：1987-04-01 00:00:00

abstract：:The behavioural modifications that accompany Ramadan intermittent fasting (RIF) are usually associated with some alterations in the metabolic, physiological, and psychological responses of athletes that may affect sport performance. Muslim athletes who are required to train and/or compete during the month-long, diurna...

journal_title：Journal of sports sciences

authors： Chaouachi A,Leiper JB,Chtourou H,Aziz AR,Chamari K

更新日期：2012-01-01 00:00:00