Influence of different types of exercise on the expression of haem oxygenase-1 in leukocytes.

abstract：:A calibration study was conducted to determine the threshold counts for two commonly used accelerometers, the ActiGraph and the Actical, to classify activities by intensity in children 5 to 8 years of age. Thirty-three children wore both accelerometers and a COSMED portable metabolic system during 15 min of rest and t...

journal_title：Journal of sports sciences

authors： Evenson KR,Catellier DJ,Gill K,Ondrak KS,McMurray RG

更新日期：2008-12-01 00:00:00

abstract：:Oudejans, Bakker, and Beek (2007) recognize several relevant aspects of offside judgements in association football in the paper by Helsen, Gilis, and Weston (2006). We agree that the existing knowledge base on offside assessment needs to be expanded for two reasons. First, from a theoretical point of view it is import...

journal_title：Journal of sports sciences

authors： Helsen W,Gilis B,Weston M

更新日期：2007-07-01 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 aim of this study was to compare thoracic spine alignment with two- and three-dimensional calculations of shoulder alignment (defined as a line joining the acromion processes of the right and left scapula) when all measures were projected onto the transverse plane. A six-camera Vicon system was used to reconstruct...

journal_title：Journal of sports sciences

authors： Elliott B,Wallis R,Sakurai S,Lloyd D,Besier T

更新日期：2002-06-01 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：: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 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：: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：: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：:This study investigated the effect of self-reported tolerance of the intensity of exercise on affective responses to, self-efficacy for and intention to repeat low-volume high-intensity interval exercise (HIIE). Thirty-six healthy participants (mean age 21 ± 2 years) were split into high tolerance (HT; n = 19), low to...

journal_title：Journal of sports sciences

authors： Bradley C,Niven A,Phillips SM

更新日期：2019-07-01 00:00:00

abstract：:For the first time we aimed to: (1) assess fat-free mass (FFM) and RMR in youth soccer players, (2) compare measured RMR to estimated RMR using previously published prediction equations, and (3) develop a novel population-specific prediction equation. In a cross-sectional design, 99 males from a Premier League academy...

journal_title：Journal of sports sciences

authors： Hannon MP,Carney DJ,Floyd S,Parker LJF,McKeown J,Drust B,Unnithan VB,Close GL,Morton JP

更新日期：2020-01-01 00:00:00

abstract：:The purpose of this study was to explore elite coaches' perceptions of how they can both facilitate and impede the development of key mental toughness characteristics in the context of Australian football. Eleven coaches from a previous study (Gucciardi, Gordon, & Dimmock, 2008) were re-interviewed and the transcribed...

journal_title：Journal of sports sciences

authors： Gucciardi DF,Gordon S,Dimmock JA,Mallett CJ

更新日期：2009-11-01 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：:The aim of this study was to examine the influence of maturity status on primary school children's physical activity and physical self-perceptions. Altogether, 175 children (97 girls, 78 boys) aged 10.6 +/- 0.3 years completed the Children and Youth Physical Self-Perception Profile and wore an ActiGraph accelerometer ...

journal_title：Journal of sports sciences

authors： Fairclough SJ,Ridgers ND

更新日期：2010-01-01 00:00:00

abstract：:In this study, we examined patterns of leg muscle recruitment and co-activation, and the relationship between muscle recruitment and cadence, in highly trained cyclists. Electromyographic (EMG) activity of the tibialis anterior, tibialis posterior, peroneus longus, gastrocnemius lateralis and soleus was recorded using...

journal_title：Journal of sports sciences

authors： Chapman AR,Vicenzino B,Blanch P,Knox JJ,Hodges PW

更新日期：2006-02-01 00:00:00

abstract：:In order to investigate the effect of playing styles on the match performance of football teams, data were analysed on 18 technical performance-related variables and 8 physical performance-related variables from 59 matches in the 2018 FIFA World Cup. A k-means cluster analysis was conducted to classify all match obser...

journal_title：Journal of sports sciences

authors： Yi Q,Gómez MA,Wang L,Huang G,Zhang H,Liu H

更新日期：2019-11-01 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：:Interceptive actions require individuals to time their movements with an external event. To meet the intense spatial-temporal demands needed for successful interception, a tight coupling and coordination between perceptual and motor processes is required. The control strategy that underlies successful performance is a...

journal_title：Journal of sports sciences

authors： Panchuk D,Vickers JN

更新日期：2009-10-01 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：:Walking is one of the preferred exercises among elderly, but could a prolonged walking increase gait variability, a risk factor for a fall in the elderly? Here we determine whether 30 min of treadmill walking increases coefficient of variation of gait in elderly. Because gait responses to exercise depend on fitness le...

journal_title：Journal of sports sciences

authors： Da Rocha ES,Kunzler MR,Bobbert MF,Duysens J,Carpes FP

更新日期：2018-06-01 00:00:00

abstract：:In the present study, we examined the influence of shoe lacing on foot biomechanics in running. Twenty experienced rearfoot runners ran in six different lacing conditions across a force platform at a speed of 3.3 m . s(-1). Foot pronation during contact, tibial acceleration, and plantar pressure distribution of the ri...

journal_title：Journal of sports sciences

authors： Hagen M,Hennig EM

更新日期：2009-02-01 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：:The aim of this study was to quantify the acute impact of soccer match officiating on selected physiological and physical performance measures. Twenty-four officials from the Spanish National 3rd Division participated in this study. External global positioning system and internal (heart rate) load data were collected ...

journal_title：Journal of sports sciences

authors： Castillo D,Yanci J,Cámara J,Weston M

更新日期：2016-01-01 00:00:00

abstract：:In this paper we report on two studies that investigated the physical demands of professional rugby league match-play. Instudy one, National Rugby League (NRL) and National Youth Competition (NYC) players underwent global positioning system (GPS) analysis during competitive matches. No differences (P > 0.05) were obse...

journal_title：Journal of sports sciences

authors： Gabbett TJ

更新日期：2013-01-01 00:00:00

abstract：:Interest in rises in oxygen consumption (VO2) with increasing exercise intensity largely originate from the work of Hill and colleagues in the 1920s. Their studies led to a belief that cardiac output and VO2 'plateau' at increasing work rates and that muscle hypoxia leads to fatigue. Hence, it was assumed that the pri...

journal_title：Journal of sports sciences

authors： Dennis SC,Noakes TD

更新日期：1998-01-01 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：:This study investigated the effects of knee localised muscle damage on running kinematics at varying speeds. Nineteen young women (23.2 ± 2.8 years; 164 ± 8 cm; 53.6 ± 5.4 kg), performed a maximal eccentric muscle damage protocol (5 × 15) of the knee extensors and flexors of both legs at 60 rad · s(-1). Lower body kin...

journal_title：Journal of sports sciences

authors： Tsatalas T,Giakas G,Spyropoulos G,Sideris V,Lazaridis S,Kotzamanidis C,Koutedakis Y

更新日期：2013-01-01 00:00:00

abstract：:Abstract This study constructed a technique effectiveness evaluation formula for table tennis players based on the relationship between the scoring rate and usage rate of techniques and established evaluation criteria through the examination of 224 matches of the world's top 35 players. It also built a competition per...

journal_title：Journal of sports sciences

authors： Zhang H,Liu W,Hu JJ,Liu RZ

更新日期：2014-01-01 00:00:00

abstract：:The study examined Yo-Yo intermittent recovery level 2 (YYIR2) and submaximal YYIR1 test performances in 172 male semi-professional football players (age; 25.8 ± 4.1 years) representing all teams in a top league at pre-season, start-season, mid-season and end-season. YYIR2 performance was 847 ± 227 m (±SD) at pre-seas...

journal_title：Journal of sports sciences

authors： Mohr M,Krustrup P

更新日期：2014-01-01 00:00:00

abstract：:Knowledge of the kinematic differences that separate highly skilled and less-skilled squash players could assist the progression of talent development. This study compared trunk, upper-limb and racket kinematics between two groups of nine highly skilled and less-skilled male athletes for forehand drive, volley and dro...

journal_title：Journal of sports sciences

authors： Williams BK,Sanders RH,Ryu JH,Graham-Smith P,Sinclair PJ

更新日期：2020-07-01 00:00:00