Effects of different shoe-lacing patterns on the biomechanics of running shoes.

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 aim of this study was to examine shock attenuation before and after completing a maximal effort graded exercise test while running on a treadmill. Ten individuals ran before and after a maximal graded exercise test with running speed controlled between conditions. Transfer functions were calculated using surface-m...

journal_title：Journal of sports sciences

authors： Mercer JA,Bates BT,Dufek JS,Hreljac A

更新日期：2003-11-01 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：: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 study, we evaluated the extent to which 2000-m rowing ergometer performance times predicted final rankings at the World Rowing Championships in a sample of 638 rowers of both sexes and body-mass classifications (i.e., open-category and lightweight rowers). Rowing ergometer performance times were examined using...

journal_title：Journal of sports sciences

authors： Mikulić P,Smoljanović T,Bojanić I,Hannafin JA,Matković BR

更新日期：2009-07-01 00:00:00

abstract：:Laboratory-based studies indicate mild dehydration adversely affects mood. Although ultra-endurance events often result in mild to moderate dehydration, little research has evaluated whether the relationship between hydration status and mood state also exists in these arduous events. Therefore, the purpose of this stu...

journal_title：Journal of sports sciences

authors： Moyen NE,Ganio MS,Wiersma LD,Kavouras SA,Gray M,McDermott BP,Adams JD,Binns AP,Judelson DA,McKenzie AL,Johnson EC,Muñoz CX,Kunces LJ,Armstrong LE

更新日期：2015-01-01 00:00:00

abstract：:The purpose of this study was to establish normative data for regional sweat sodium concentration ([Na+]) and whole-body sweating rate in athletes. Data from 506 athletes (367 adults, 139 youth; 404 male, 102 female) were compiled from observational athlete testing for a retrospective analysis. The participants were s...

journal_title：Journal of sports sciences

authors： Baker LB,Barnes KA,Anderson ML,Passe DH,Stofan JR

更新日期：2016-01-01 00:00:00

abstract：:The aims of the present study were to assess the maximal oxygen uptake and body composition of adult Chinese men and women, and to determine how these variables relate to age. The cross-sectional sample consisted of 196 men and 221 women aged 20 - 64 years. Maximal oxygen uptake (VO2max) was determined by indirect cal...

journal_title：Journal of sports sciences

authors： Wong SY,Chan FW,Lee CK,Li M,Yeung F,Lum CC,Choy DT,Woo J

更新日期：2008-02-01 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

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：:Physiological and kinematic data were collected from elite under-19 rugby union players to provide a greater understanding of the physical demands of rugby union. Heart rate, blood lactate and time-motion analysis data were collected from 24 players (mean +/- s(x): body mass 88.7 +/- 9.9 kg, height 185 +/- 7 cm, age 1...

journal_title：Journal of sports sciences

authors： Deutsch MU,Maw GJ,Jenkins D,Reaburn P

更新日期：1998-08-01 00:00:00

abstract：:This study aimed to investigate the effects of different training modalities on the soluble Klotho (S-Klotho) plasma levels in sedentary middle-aged adults. A total of 74 middle-aged adults (53.4 ± 5.0 years old; 52.7% women) were enrolled in the FIT-AGEING study. We conducted a 12-week randomised controlled trial. Th...

journal_title：Journal of sports sciences

authors： Amaro-Gahete FJ,De-la-O A,Jurado-Fasoli L,Espuch-Oliver A,de Haro T,Gutierrez A,Ruiz JR,Castillo MJ

更新日期：2019-10-01 00:00:00

abstract：:The aims of this study were to describe the current anthropometric profiles of elite Australian female and male cricket fast bowlers and establish a set of reference values useful for future investigations on player selection, talent identification, and training programme development. The participants were 26 female (...

journal_title：Journal of sports sciences

authors： Stuelcken M,Pyne D,Sinclair P

更新日期：2007-12-01 00:00:00

abstract：:This study investigated the influence of the regression model and initial intensity during an incremental test on the relationship between the lactate threshold estimated by the maximal-deviation method and performance in elite-standard runners. Twenty-three well-trained runners completed a discontinuous incremental r...

journal_title：Journal of sports sciences

authors： Santos-Concejero J,Tucker R,Granados C,Irazusta J,Bidaurrazaga-Letona I,Zabala-Lili J,Gil SM

更新日期：2014-01-01 00:00:00

abstract：:This study analysed the effects of bilateral and non-dominant practice on novice practitioners' lateral preference for judo skills in a combat context (i.e., randori). Thirty sports sciences students (22 men and 8 women; mean age 19 ± 1 years) with right hand, foot, and counterclockwise rotation preferences were divid...

journal_title：Journal of sports sciences

authors： Iglesias-Soler E,Mayo X,Dopico X,Fernández-Del-Olmo M,Carballeira E,Fariñas J,Fernández-Uribe S

更新日期：2018-01-01 00:00:00

abstract：:The manifestations of fatigue, as observed by reductions in the ability to produce a given force or power, are readily apparent soon after the initiation of intense activity. Moreover, following the activity, a sustained weakness may persist for days or even weeks. The mechanisms responsible for the impairment in perf...

journal_title：Journal of sports sciences

authors： Green HJ

更新日期：1997-06-01 00:00:00

abstract：:The inability of the between-bowlers methodology to control parameters external to technique could lead to erroneous significant and non-significant associations being reported between fast-bowling technique and ball release speed. Using Pearson's product - moment correlation, we first examined the effectiveness of a ...

journal_title：Journal of sports sciences

authors： Salter CW,Sinclair PJ,Portus MR

更新日期：2007-09-01 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：:Previous research on unstable footwear has suggested that it may induce mechanical noise during walking. The purpose of this study was to explore whether unstable footwear could be considered as a noise-based training gear to exercise body center of mass (CoM) motion during walking. Ground reaction forces were collect...

journal_title：Journal of sports sciences

authors： Dierick F,Bouché AF,Scohier M,Guille C,Buisseret F

更新日期：2018-12-01 00:00:00

abstract：:The GT3X+ worn at the wrist promotes greater compliance than at the hip. Minutes in SB and PA calculated from raw accelerations at the hip and wrist provide contrasting estimates and cannot be directly compared. Wear-time for the wrist (15.6 to 17.4 h.d-1) was greater than the hip (15.2 to 16.8 h.d-1) across several w...

journal_title：Journal of sports sciences

authors： McLellan G,Arthur R,Buchan DS

更新日期：2018-11-01 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：:Skilled golfers are reported to be more flexible than lesser able golfers, which may assist in increased x-factor (shoulder-pelvis separation) at the top of the backswing. However, it is unknown if increased flexibility produces faster clubhead speed. The aim of this study was to investigate the correlations amongst t...

journal_title：Journal of sports sciences

authors： Joyce C

更新日期：2017-10-01 00:00:00

abstract：:We examined the influence of caffeine supplementation on cognitive performance and perceptual responses in female team-game players taking low-dose monophasic oral contraceptives of the same hormonal composition. Ten females (24 ± 4 years; 59.7 ± 3.5 kg body mass; 2-6 training sessions per week) took part in a randomi...

journal_title：Journal of sports sciences

authors： Ali A,O'Donnell J,Von Hurst P,Foskett A,Holland S,Starck C,Rutherfurd-Markwick K

更新日期：2016-01-01 00:00:00

abstract：:The aims of the present study were to examine quantitatively ground reaction forces, kinematics, and muscle activations during the windmill softball pitch, and to determine relationships between knee valgus and muscle activations, ball velocity and muscle activation as well as ball velocity and ground reaction forces....

journal_title：Journal of sports sciences

authors： Oliver GD,Plummer H

更新日期：2011-07-01 00:00:00

abstract：:The yips is considered a task-specific movement disorder. Its estimated prevalence, however, is high compared to similar neurological movement disorders, possibly resulting from previous studies' restriction of samples based on skill level, and self-report bias. Alternatively, this high prevalence might be an indicati...

journal_title：Journal of sports sciences

authors： Klämpfl MK,Philippen PB,Lobinger BH

更新日期：2015-01-01 00:00:00

abstract：:This study investigated the effects of two different doses of caffeine on endurance cycle time trial performance in male athletes. Using a randomised, placebo-controlled, double-blind crossover study design, sixteen well-trained and familiarised male cyclists (Mean ± s: Age = 32.6 ± 8.3 years; Body mass = 78.5 ± 6.0 k...

journal_title：Journal of sports sciences

authors： Desbrow B,Biddulph C,Devlin B,Grant GD,Anoopkumar-Dukie S,Leveritt MD

更新日期：2012-01-01 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：:The inflammatory responsive cytokine interleukin-6 (IL-6) helps regulate immune responses to exercise. Evidence suggests that increases in IL-6 are related to exercise duration and intensity. However, the moderating effect of sex and underlying mediators have received limited attention. We compared plasma IL-6 respons...

journal_title：Journal of sports sciences

authors： Edwards KM,Burns VE,Ring C,Carroll D

更新日期：2006-08-01 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 human spleen shows a decrease in volume of around 40% early during vigorous exercise and in response to other stressful stimuli such as maximal apnoea and the breathing of hypoxic gas mixtures. Contraction seems an active response, mediated by alpha-adrenergic fibres in the splenic nerve. Given the relatively smal...

journal_title：Journal of sports sciences

authors： Shephard RJ

更新日期：2016-01-01 00:00:00