Effects of anxiety on running with and without an aiming task.

abstract：:The aims of this study were to determine the validity of fat mass of the trunk as a predictor for visceral fat area at the umbilicus level and to develop equations to predict visceral fat mass at the umbilicus level using fat mass of the trunk measured by dual-energy X-ray absorptiometry (DXA) and bioelectrical impeda...

journal_title：Journal of sports sciences

authors： Demura S,Sato S

更新日期：2007-05-01 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：:Investigations in the 1990s evaluated the influence of breathing assemblies on respiratory variables at rest and during exercise; however, research on new models of breathing assemblies is lacking. This study compared metabolic gas analysis data from a mouthpiece with a noseclip (MOUTH) and a face mask (MASK). Volunte...

journal_title：Journal of sports sciences

authors： Wagner DR,Clark NW

更新日期：2016-01-01 00:00:00

abstract：:Recreational tennis players tend to have higher incidence of tennis elbow, and this has been hypothesised to be related to one-handed backhand technique and off-centre ball impacts on the racket face. This study aimed to investigate for a range of participants the effect of off-longitudinal axis and off-lateral axis b...

journal_title：Journal of sports sciences

authors： King M,Hau A,Blenkinsop G

更新日期：2017-07-01 00:00:00

abstract：:In this article, we examine the question of what information is processed during observational learning by evaluating a variety of methods, theories, and empirical data. Initially, we review work involving neuroimaging techniques and infant imitation. We then evaluate data from behavioural experiments involving adults...

journal_title：Journal of sports sciences

authors： Hodges NJ,Williams AM,Hayes SJ,Breslin G

更新日期：2007-03-01 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：:Sprint performance over short distances is a central component in young tennis players' development. This study aimed to examine the longitudinal development of sprint performance in young female tennis players, and to investigate differences between performance levels. Also potentially explanatory variables were inve...

journal_title：Journal of sports sciences

authors： Kramer T,Valente-Dos-Santos J,Visscher C,Coelho-E-Silva M,Huijgen BCH,Elferink-Gemser MT

更新日期：2021-02-01 00:00:00

abstract：:The aim of this study was to examine the effect of movement and stretching imagery on increases in flexibility. Thirty volunteers took part in a 4 week flexibility training programme. They were randomly assigned to one of three groups: (1) movement imagery, where participants imagined moving the limb they were stretch...

journal_title：Journal of sports sciences

authors： Vergeer I,Roberts J

更新日期：2006-02-01 00:00:00

abstract：:This investigation was undertaken in an effort to establish physiological characteristics of soccer players and to relate them to positional roles. A total of 135 footballers (age 24.4 +/- 4.6 years) were assessed for body mass, % body fat, haemoglobin, maximal oxygen uptake (VO2 max), leg power, anaerobic capacity an...

journal_title：Journal of sports sciences

authors： Davis JA,Brewer J,Atkin D

更新日期：1992-12-01 00:00:00

abstract：:Childhood sport participation is argued to be important to understand differences in self-regulation and performance level in adolescence. This study sought to investigate if football-specific activities in childhood (6-12 years of age) is related to self-regulatory skills and national under 14- and 15-team selection ...

journal_title：Journal of sports sciences

authors： Erikstad MK,Høigaard R,Johansen BT,Kandala NB,Haugen T

更新日期：2018-10-01 00:00:00

abstract：:The aim of the present study was to compare kinetically the roles of the lower extremities in generating trunk rotation in the tennis one-handed and two-handed backhand strokes. Fourteen male collegiate tennis players, seven with a preference for the one- and seven with a preference for the two-handed technique, were ...

journal_title：Journal of sports sciences

authors： Akutagawa S,Kojima T

更新日期：2005-08-01 00:00:00

abstract：:In rowing, power is inevitably lost as kinetic energy is imparted to the water during push-off with the blades. Power loss is estimated from reconstructed blade kinetics and kinematics. Traditionally, it is assumed that the oar is completely rigid and that force acts strictly perpendicular to the blade. The aim of the...

journal_title：Journal of sports sciences

authors： Hofmijster M,De Koning J,Van Soest AJ

更新日期：2010-08-01 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 purpose of this study was to gather information from scientific literature related to all steps of Van Mechelen's "sequence of prevention" for injuries applied to youth and adult recreational field hockey players. A systematic review was conducted in Medline via Pubmed and in SPORTDiscus via EBSCOhost. Twenty-six ...

journal_title：Journal of sports sciences

authors： Cornelissen M,Kemler E,Verhagen E,Gouttebarge V

更新日期：2020-09-01 00:00:00

abstract：:The literature related to Borg's ratings of perceived exertion (RPE) scale has revealed inconsistencies about the strength of the relationship between ratings of perceived exertion and various physiological criterion measures, such as heart rate, blood lactate concentration, percent maximal oxygen uptake (%VO2max), ox...

journal_title：Journal of sports sciences

authors： Chen MJ,Fan X,Moe ST

更新日期：2002-11-01 00:00:00

abstract：:Ubiquitous (pervasive) computing is a term for a synergetic use of sensing, communication and computing. Pervasive use of computing has seen a rapid increase in the current decade. This development has propagated in applied sport science and everyday life. The work presents a survey of recent developments in sport and...

journal_title：Journal of sports sciences

authors： Baca A,Dabnichki P,Heller M,Kornfeind P

更新日期：2009-10-01 00:00:00

abstract：:The relationship between external training load and session rating of perceived exertion (s-RPE) training load and the impact that playing experience, playing position and 2-km time-trial performance had on s-RPE training load were explored. From 39 Australian Football players, 6.9 ± 4.6 training sessions were analyse...

journal_title：Journal of sports sciences

authors： Gallo T,Cormack S,Gabbett T,Williams M,Lorenzen C

更新日期：2015-01-01 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：:Many sports events require participants to exert a maximal effort in the closing stages-that is, after prior fatiguing exercise. Peak and mean pedalling rate during 30 s of high-intensity cycle ergometer exercise was manipulated by altering the applied resistance or the initial exercise intensity so that the effect of...

journal_title：Journal of sports sciences

authors： Cherry PW,Lakomy HK,Nevill ME,Maddox NL

更新日期：1997-04-01 00:00:00

abstract：:The present retrospective study intended to determine age, performance, the role of nationality and participation trends across calendar years in runners competing in "Comrades Marathon", the ultra-marathon with the longest tradition and the highest number of finishers worldwide. We analysed 235,467 finishers (40,211 ...

journal_title：Journal of sports sciences

authors： Nikolaidis PT,Knechtle B

更新日期：2019-06-01 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：:The purpose of the present study was to analyse the variability in clubhead presentation to the ball and the resulting ball impact location on the club face for a range of golfers of different ability. A total of 285 male and female participants hit multiple shots using one of four proprietary drivers. Self-reported h...

journal_title：Journal of sports sciences

authors： Betzler NF,Monk SA,Wallace ES,Otto SR

更新日期：2012-01-01 00:00:00

abstract：:We compared starters and non-starters for various isokinetic strength variables in elite women's soccer players. A convenience sample of 10 starters (mean ± s; age = 20 ± 2 years; height = 170 ± 4 cm; body mass = 65 ± 5 kg) and 7 non-starters (age = 20 ± 1 years; height = 164 ± 3 cm; body mass = 63 ± 4 kg) performed m...

journal_title：Journal of sports sciences

authors： Jenkins ND,Hawkey MJ,Costa PB,Fiddler RE,Thompson BJ,Ryan ED,Smith D,Sobolewski EJ,Conchola EC,Akehi K,Cramer JT

更新日期：2013-01-01 00:00:00

abstract：:The use of dietary supplements is widespread in sport and most athletes competing at the highest level of competition use some form of dietary supplementation. Many of these supplements confer no performance or health benefit, and some may actually be detrimental to both performance and health when taken in high doses...

journal_title：Journal of sports sciences

authors： Maughan RJ

更新日期：2005-09-01 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 present study examined exercise affect during volume-load matched, high-velocity, low-load and low-velocity, high-load resistance exercise conditions in older adults. Ten older adults completed three sets of eight exercises on six separate occasions (three high-velocity, low-load and three low-velocity, high-load ...

journal_title：Journal of sports sciences

authors： Richardson DL,Duncan MJ,Jimenez A,Jones VM,Juris PM,Clarke ND

更新日期：2018-07-01 00:00:00

abstract：:Organisational stressors are associated with positive and negative outcomes in extant literature; however, little is known about which demands predict which outcomes. Extant theory and literature also suggests that coping style may influence an individual's resilience or vulnerability to stressors and, subsequently, t...

journal_title：Journal of sports sciences

authors： Arnold R,Fletcher D,Daniels K

更新日期：2017-04-01 00:00:00

abstract：:The purpose of this study was to determine the effects of the simultaneous use of pyridoxine-alpha-ketoglutarate (PAK) and sodium bicarbonate (NaHCO3) on short-term maximal exercise capacity in eight well-trained male cyclists. The study consisted of the determination of maximal power output and the administration of ...

journal_title：Journal of sports sciences

authors： Linderman J,Kirk L,Musselman J,Dolinar B,Fahey TD

更新日期：1992-06-01 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：: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