Changes in running mechanics using conventional shoelace versus elastic shoe cover.

abstract：:This study analysed whether a significant relationship exists between the torque and muscle thickness and pennation angle of the erector spinae muscle during a maximal isometric lumbar extension with the lumbar spine in neutral position. This was a cross-sectional study in which 46 healthy adults performed three repet...

journal_title：Journal of sports sciences

authors： Cuesta-Vargas A,González-Sánchez M

更新日期：2014-01-01 00:00:00

abstract：:This study was concerned with the measurement of a selection of performance variables from competitors in the women's long jump final of the World Student Games held in Sheffield, UK in July 1991. Several performances of each of six finalists were recorded on cine-film at 100 Hz. Resulting planar kinematic data were o...

journal_title：Journal of sports sciences

authors： Lees A,Fowler N,Derby D

更新日期：1993-08-01 00:00:00

abstract：:The main purposes of this study were to investigate the acute effects of static and dynamic lower limb stretching routines: (a) on peak torque, total external work and joint angle at peak torque of the hamstrings during maximal eccentric isokinetic leg flexion; (b) on unilateral hamstring to quadriceps (H/Q) strength ...

journal_title：Journal of sports sciences

authors： Ayala F,De Ste Croix M,Sainz De Baranda P,Santonja F

更新日期：2013-01-01 00:00:00

abstract：:The present study aimed to provide reference values for lower-limb muscle power assessed during the incremental jump squat (JS) test in elite athletes (i.e., professional athletes competing at international level). We pooled data from all JS tests performed by elite athletes of different sports in two high-performance...

journal_title：Journal of sports sciences

authors： Valenzuela PL,McGuigan M,Sánchez-Martínez G,Torrontegi E,Vázquez-Carrión J,Montalvo Z,Abad CCC,Pereira LA,Loturco I

更新日期：2020-10-01 00:00:00

abstract：:This study aimed to investigate deprivation and sex differences in selected health-relatedfitness measures in 9-12-year-old children. Data were captured on 3,407 children (49.3% boys; aged 10.5 ± 0.6 years). Cardiorespiratory fitness(20 m multistage shuttle run test; 20 m MSRT), muscular strength (handgrip strength) a...

journal_title：Journal of sports sciences

authors： Tyler R,Mackintosh KA,Spacey HL,Stratton G

更新日期：2020-01-01 00:00:00

abstract：:In the present study, we examined the independent and combined effects of an inspiratory muscle warm-up and inspiratory muscle training on intermittent running to exhaustion. Twelve males were recruited to undertake four experimental trials. Two trials (Trials 1 and 2) preceded either a 4-week training period of 1 × 3...

journal_title：Journal of sports sciences

authors： Lomax M,Grant I,Corbett J

更新日期：2011-03-01 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：:Recent research has challenged the typical pre-match and half-time (HT) interval warm-up (WU) routines currently used by professional soccer players. This study surveyed 2010/11 season WU strategies and their underpinning scientific reasoning and situational factors via an internet-based questionnaire, which was distr...

journal_title：Journal of sports sciences

authors： Towlson C,Midgley AW,Lovell R

更新日期：2013-01-01 00:00:00

abstract：:A maximal multistage 20 m shuttle run test was designed to determine the maximal aerobic power of schoolchildren, healthy adults attending fitness class and athletes performing in sports with frequent stops and starts (e.g. basketball, fencing and so on). Subjects run back and forth on a 20 m course and must touch the...

journal_title：Journal of sports sciences

authors： Léger LA,Mercier D,Gadoury C,Lambert J

更新日期：1988-07-01 00:00:00

abstract：:We assessed the reliability and validity of a 10-min submaximal treadmill test (T10) to predict critical speed (CS). Forty-two runners completed a familiarization trial plus two experimental trials (T10 test and T10 retest). Reliability between the T10 test and T10 retest was assessed using coefficient of variation (C...

journal_title：Journal of sports sciences

authors： Follador L,de Borba EF,Neto ALB,da Silva SG

更新日期：2020-11-15 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：:Exercise and treating hyperlipidaemia with statins are two integral components of the American Heart Association guidelines to reduce cardiovascular risk in adults. Since statins can cause myalgias and myopathies, they could affect the duration or intensity of an exercise regimen. To determine the impact of statin use...

journal_title：Journal of sports sciences

authors： Terpak K,Guthrie S,Erickson S

更新日期：2015-01-01 00:00:00

abstract：:This study was undertaken to examine the acute effect of interferential current on mechanical pain threshold and isometric peak torque after delayed onset muscle soreness induction in human hamstrings. Forty-one physically active healthy male volunteers aged 18-33 years were randomly assigned to one of two experimenta...

journal_title：Journal of sports sciences

authors： Rocha CS,Lanferdini FJ,Kolberg C,Silva MF,Vaz MA,Partata WA,Zaro MA

更新日期：2012-01-01 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：: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：:We tested a hypothetical model that examined both the effects of implicit theories of ability on the judgement of cheating acceptability in a physical education context and the mediating role of the achievement goals defined in the social-cognitive model of achievement motivation. Data were collected from 477 middle-s...

journal_title：Journal of sports sciences

authors： Corrion K,D'Arripe-Longueville F,Chalabaev A,Schiano-Lomoriello S,Roussel P,Cury F

更新日期：2010-06-01 00:00:00

abstract：:The aim of this study was to examine the occurrence of the sticking region by examining how three different grip widths affect the sticking region in powerlifters' bench press performance. It was hypothesised that the sticking region would occur at the same joint angle of the elbow and shoulder independent of grip wid...

journal_title：Journal of sports sciences

authors： Gomo O,Van Den Tillaar R

更新日期：2016-01-01 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：:Rowers competing at the 2000 Olympic Games were measured for 38 anthropometric dimensions. The aim was to identify common physical characteristics that could provide a competitive advantage. The participants included 140 male open-class rowers, 69 female open-class rowers, 50 male lightweight rowers, and 14 female lig...

journal_title：Journal of sports sciences

authors： Kerr DA,Ross WD,Norton K,Hume P,Kagawa M,Ackland TR

更新日期：2007-01-01 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 compare selected physiological variables and performance markers of soldiers from two "elite" units of the British Army. Ten soldiers from each of the two units were recruited for this study (n = 20). All participants completed three tests while carrying a 20 kg backpack load: (1) a maxima...

journal_title：Journal of sports sciences

authors： Simpson RJ,Gray SC,Florida-James GD

更新日期：2006-06-01 00:00:00

abstract：:Few studies have focused on the effect of posture during sprint start. The aim of this study was to measure the effect of the modification of horizontal distance between the blocks during sprint start on three dimensional (3D) joint angular velocity. Nine trained sprinters started using three different starting positi...

journal_title：Journal of sports sciences

authors： Slawinski J,Dumas R,Cheze L,Ontanon G,Miller C,Mazure-Bonnefoy A

更新日期：2013-01-01 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：:Healthy young male football players who were either fasting (n = 59) or not fasting (n = 36) during the month of Ramadan were studied. Body mass, body composition, and dietary intake were assessed at each time point. Energy intake was relatively stable in the fasting participants, but there was a small decrease of app...

journal_title：Journal of sports sciences

authors： Maughan RJ,Bartagi Z,Dvorak J,Zerguini Y

更新日期：2008-12-01 00:00:00

abstract：:Mental preparation has long been thought of as an important aspect of physical performance, especially in tasks requiring muscular strength. Recent studies in sport psychology have addressed this issue, mainly through the investigation of 'psych-up' strategies and effects. The overall trend in such experiments support...

journal_title：Journal of sports sciences

authors： Biddle SJ

更新日期：1985-04-01 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：:Free radical production increases during exercise and oxidative damage occurs in several tissues. We examined the effects of three different exercise tests on the pattern of change of erythrocyte enzyme antioxidant activities. The tests were a short maximal exercise test, a submaximal prolonged exercise test and a cyc...

journal_title：Journal of sports sciences

authors： Tauler P,Aguiló A,Guix P,Jiménez F,Villa G,Tur JA,Córdova A,Pons A

更新日期：2005-01-01 00:00:00

abstract：:Concerns about the value of physical testing and apparently declining test performance in junior basketball players prompted this retrospective study of trends in anthropometric and fitness test scores related to recruitment age and recruitment year. The participants were 1011 females and 1087 males entering Basketbal...

journal_title：Journal of sports sciences

authors： Drinkwater EJ,Hopkins WG,McKenna MJ,Hunt PH,Pyne DB

更新日期：2007-06-01 00:00:00

abstract：:Information--movement coupling is a fundamental concept, integral to theorizing on the coordination of goal-directed activity in ecological psychology. In this paper, we examine the implications of this concept for the design of experimental research and the organization of practice during the acquisition of movement ...

journal_title：Journal of sports sciences

authors： Davids K,Kingsbury D,Bennett S,Handford C

更新日期：2001-02-01 00:00:00

abstract：:Present study examined the effects of conjugated linoleic acid (CLA) supplementation on glycogen resynthesis in exercised human skeletal muscle. Twelve male participants completed a cross-over trial with CLA (3.8 g/day for 8 week) or placebo supplements by separation of 8 weeks. CLA is a mixture of trans-10 cis-12 and...

journal_title：Journal of sports sciences

authors： Tsao JP,Liao SF,Korivi M,Hou CW,Kuo CH,Wang HF,Cheng IS

更新日期：2015-01-01 00:00:00