Kinetic changes during a six-week minimal footwear and gait-retraining intervention in runners.

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：:We examined the effects of time of day on a cycling time trial with and without a prolonged warm-up, among cyclists who tended towards being high in "morningness". Eight male cyclists (mean +/- s: age = 24.9 +/- 3.5 years, peak power output = 319 +/- 34 W, chronotype = 39 +/- 6 units) completed a 16.1-km time trial wi...

journal_title：Journal of sports sciences

authors： Atkinson G,Todd C,Reilly T,Waterhouse J

更新日期：2005-03-01 00:00:00

abstract：:In this study, we examined the effects of upper-body pre-cooling before intermittent sprinting exercise in a moderate environment. Seven male and three female trained cyclists (age 26.8+/-5.5 years, body mass 68.5+/-9.5 kg, height 1.76+/-0.13 m, V O2peak 59.0+/-11.4 mL. kg(-1). min(-1); mean+/-s) performed 30 min of c...

journal_title：Journal of sports sciences

authors： Cheung S,Robinson A

更新日期：2004-07-01 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：:This study investigated the stability of the measurement of respiratory variables during rest, walking and running using the K4b(2) portable metabolic analyser in ten active males (age 31 ± 11 years; VO₂ peak 42.1 ± 2.6 ml · min(-1) · kg(-1)). Following a 10 min rest, participants completed three discontinuous increme...

journal_title：Journal of sports sciences

authors： Howe CC,Matzko RO,Piaser F,Pitsiladis YP,Easton C

更新日期：2014-01-01 00:00:00

abstract：:This study investigates the effect of running shoes' aging on mechanical and biomechanical parameters as a function of midsole materials (viscous, intermediate, elastic) and ground inclination. To this aim, heel area of the shoe (under calcaneal tuberosity) was first mechanically aged at realistic frequency and impact...

journal_title：Journal of sports sciences

authors： Chambon N,Sevrez V,Ly QH,Guéguen N,Berton E,Rao G

更新日期：2014-01-01 00:00:00

abstract：:We explore how expertise is obtained in the domain of rugby refereeing. The research data are qualitative and are drawn from an 18 month period working in collaboration with the Rugby Football Union Elite Referee Unit. Adopting an ethnographic mode of enquiry, the study combined long-term participant observation with ...

journal_title：Journal of sports sciences

authors： Ollis S,Macpherson A,Collins D

更新日期：2006-03-01 00:00:00

abstract：:This study examined the long-term effects of the 11+ on physical performance in adolescent male football (soccer) players. Eighty-two 14- to 16-year-old male football players (11+ = 42 players, control = 40 players) participated. Teams were randomised to control (CON) and intervention (INT) groups. INT applied the 11+...

journal_title：Journal of sports sciences

authors： Zarei M,Abbasi H,Daneshjoo A,Barghi TS,Rommers N,Faude O,Rössler R

更新日期：2018-11-01 00:00:00

abstract：:Despite an increase in anterior knee laxity (AKL) during the adolescent growth spurt in girls, it is unknown whether landing biomechanics are affected by this change. This study investigated whether pubescent girls with higher AKL displayed differences in their lower limb strength or landing biomechanics when performi...

journal_title：Journal of sports sciences

authors： Wild CY,Munro BJ,Steele JR

更新日期：2017-01-01 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：: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：:This study examined the effect of wearing time on comfort perception and landing biomechanics of basketball shoes with different midsole hardness. Fifteen basketball players performed drop landing and layup first step while wearing shoes of different wearing time (new, 2-, 4-, 6- and 8-week) and hardness (soft, medium...

journal_title：Journal of sports sciences

authors： Lam WK,Liu H,Wu GQ,Liu ZL,Sun W

更新日期：2019-10-01 00:00:00

abstract：:In this study, we investigated whether video modelling can enhance gymnasts' performance of the circle on a pommel horse. The procedure associated expert-modelling with self-modelling and quantitative performance analysis. Sixteen gymnasts were randomly assigned to one of two groups: (1) a modelling group, which recei...

journal_title：Journal of sports sciences

authors： Baudry L,Leroy D,Chollet D

更新日期：2006-10-01 00:00:00

abstract：:In this study, we examined gender and age differences in physical performance in football. Thirty-four elite female and 34 elite male players (age 17 +/- 1.6 to 24 +/- 3.4 years) from a professional football club were divided into four groups (n=17 each) according to gender and competitive level (senior males, senior ...

journal_title：Journal of sports sciences

authors： Mujika I,Santisteban J,Impellizzeri FM,Castagna C

更新日期：2009-01-15 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：:Accurate measures of heart rate (HR) during rehabilitation and sporting activities are important for precise exercise prescription to maintain or increase capacity. Wrist-worn activity monitors utilizing photoplethysmography technology (PPG) to configure HR show discrepant findings regarding validity depending on the ...

journal_title：Journal of sports sciences

authors： Støve MP,Haucke E,Nymann ML,Sigurdsson T,Larsen BT

更新日期：2019-04-01 00:00:00

abstract：:The main aim of this study was to develop and test psychometrically the Physical Education Predisposition Scale, to assess secondary school students' cost-benefit assessment of physical education (PE) participation (PE attitude affective and attitude cognitive) and self-perceptions (PE perceived competence and self-ef...

journal_title：Journal of sports sciences

authors： Hilland TA,Stratton G,Vinson D,Fairclough S

更新日期：2009-12-01 00:00:00

abstract：:In this study, we investigated the effect of water immersion on physical test performance and perception of fatigue/recovery during a 4-day simulated soccer tournament. Twenty high-performance junior male soccer players (age 15.9 +/- 0.6 years) played four matches in 4 days and undertook either cold-water immersion (1...

journal_title：Journal of sports sciences

authors： Rowsell GJ,Coutts AJ,Reaburn P,Hill-Haas S

更新日期：2009-04-01 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 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：: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：:This study examined the changes in running performance, maximal blood lactate concentrations and running kinematics between 85%BM anti-gravity (AG) running and normal over-ground (OG) running over an 8-week training period. Fifteen elite male developmental cricketers were assigned to either the AG or over-ground (CON)...

journal_title：Journal of sports sciences

authors： Brennan CT,Jenkins DG,Osborne MA,Oyewale M,Kelly VG

更新日期：2018-10-01 00:00:00

abstract：:To determine if a 36-h fast affects the central and peripheral components of VO2 during submaximal exercise and peak oxygen uptake (VO2 peak), 10 physically healthy males exercised first for 10 min at approximately 60% of their VO2 peak and then to fatigue. Their cardiovascular responses were compared with those of 10...

journal_title：Journal of sports sciences

authors： Boone WT,Boone T

更新日期：1995-08-01 00:00:00

abstract：:Muscle imbalance and deficit are key parameters for guiding rehabilitation and sports sessions and avoiding injuries. However, the high cost and non-portable nature of most instruments employed for muscle strength assessment frequently hamper an affordable evaluation in field conditions. This study evaluated the valid...

journal_title：Journal of sports sciences

authors： Romero-Franco N,Fernández-Domínguez JC,Montaño-Munuera JA,Romero-Franco J,Jiménez-Reyes P

更新日期：2019-08-01 00:00:00

abstract：:The aim of this study was to assess the effects of quality of opposition and match status on technical and tactical volleyball performances, as measured by block, attack, serve, and set actions related to the tasks, space, players, and efficacy of selected game actions. Twenty-five matches from the men's World Cup 200...

journal_title：Journal of sports sciences

authors： Marcelino R,Mesquita I,Sampaio J

更新日期：2011-04-01 00:00:00

abstract：:Thai ginseng, Kaempferia parviflora, is widely believed among the Mong hill tribe to reduce perceived effort and improve physical work capacity. Kaempferia parviflora is consumed before their daily work. Therefore, we conducted an acute study on the effects of K. parviflora on repeated bouts of sprint exercise and on ...

journal_title：Journal of sports sciences

authors： Wasuntarawat C,Pengnet S,Walaikavinan N,Kamkaew N,Bualoang T,Toskulkao C,McConell G

更新日期：2010-09-01 00:00:00

abstract：:The aim of this study was to assess which of the equations that estimate peak power output and maximal oxygen uptake (VO2max) in the velodrome adapt best to the measurements made by reference systems. Thirty-four endurance cyclists and triathletes performed one incremental test in the laboratory and two tests in the v...

journal_title：Journal of sports sciences

authors： González-Haro C,Galilea PA,Escanero JF

更新日期：2008-04-01 00:00:00

abstract：:We investigated whether heart rate (HR)-derived parameters are accurate performance predictors in endurance recreational runners. One hundred thirty recreational athletes completed an incremental running test (4´running + 1´rest). After each stage, we recorded HR, % of maximum HR (%HRmax), and blood lactate. We also a...

journal_title：Journal of sports sciences

authors： Etxegarai U,Insunza A,Larruskain J,Santos-Concejero J,Gil SM,Portillo E,Irazusta J

更新日期：2018-09-01 00:00:00

abstract：:The aim of this study was to observe changes in the kinematics and muscle activities when barefoot running was initially adopted by six habitually shod, recreational rearfoot striking runners. Participants ran on a treadmill shod for 5 min, completed 3 × 10-min intervals of barefoot running and then completed a final ...

journal_title：Journal of sports sciences

authors： Strauts J,Vanicek N,Halaki M

更新日期：2016-01-01 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