Abstract:
OBJECTIVES:To measure the change in tackling technique of rugby union players following an acute bout of physically fatiguing exercise. DESIGN:Randomised cross-over study design with a physical fatigue condition and no-physical fatigue condition (control). METHODS:Nineteen male amateur club rugby union players (n=19) and a total of 887 tackles were analysed. During each condition, each player performed four sets of six tackles (three dominant and three non-dominant shoulder) on a contact simulator. Between each set of tackles in the physical fatigue condition, players performed the prolonged high-intensity intermittent running ability test. Using video, player's tackling proficiency for each tackle was measured by awarding either one point or zero points depending on whether a particular technique was performed or not. The sum of these points represents player's tackling proficiency (score out of 9, measured in arbitrary units). RESULTS:In the non-dominant shoulder, a difference between fatigue and control was found at set two (Fatigue 7.3 [7.1-7.6] AU vs. Control 7.6 [7.4-7.9] AU, p=0.06, ES=0.3 small) and set three (Fatigue 7.3 [7.0-7.5] AU vs. Control 7.7 [7.5-7.9] AU, p=0.006, ES=0.5 small). During the control condition, tackling proficiency scores improved from baseline for non-dominant tackles (Baseline 7.4 [7.2-7.6] AU, vs Set two 7.6 [7.4-7.9] AU, p=0.08 ES=0.3 small; vs Set three 7.7 [7.5-7.9] AU, p=0.05, ES=0.4 small). CONCLUSIONS:In conclusion, this study shows that physical fatigue can potentially affect rugby union players' tackling technique. Therefore, players should develop technical capacity to resist the effects of physical fatigue during the tackle.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Davidow D,Redman M,Lambert M,Burger N,Smith M,Jones B,Hendricks Sdoi
10.1016/j.jsams.2020.04.005subject
Has Abstractpub_date
2020-11-01 00:00:00pages
1105-1110issue
11eissn
1440-2440issn
1878-1861pii
S1440-2440(19)31470-7journal_volume
23pub_type
杂志文章abstract:OBJECTIVES:To systematically review the current body of research that has investigated changes in strength-related variables during different phases of the menstrual cycle in eumenorrheic women. DESIGN:Systematic review and meta-analysis. METHODS:A literature search was conducted in Pubmed, SPORTDiscus and Web of Sci...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章,评审
doi:10.1016/j.jsams.2020.04.022
更新日期:2020-12-01 00:00:00
abstract::This study examined the thermoregulatory responses in field hockey goalkeepers during games (Part A), and assessed the effect of heat stress on hockey-specific response time (Part B). In Part A, core temperature (T(c)), skin temperature (T(sk)), body mass, fluid consumption and heart rate (HR) responses of six goalkee...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2009.03.009
更新日期:2010-05-01 00:00:00
abstract:OBJECTIVES:With increasingly sedentary lifestyles, opportunities for physical activity such as active transport to school need to be promoted in adolescents. This study examines personal, social and environmental correlates of active transport to school among adolescents including sociodemographics, behavioural pattern...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2014.06.012
更新日期:2015-07-01 00:00:00
abstract:OBJECTIVES:Participants of ultramarathon events experience a complex interaction of psychophysiological stressors. Therefore, the purpose of this study was to investigate the role of trait emotional intelligence (trait EI) on mood states and serum cortisol responses to a 80.5km treadmill ultramarathon. DESIGN:Twelve p...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2019.02.008
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVES:In winter terrain parks special airbags are used for skiers and snowboarders to practice jumps and achieve safe landings. However, in 2010 two skiers landed at the end of oval airbags. One suffered fatal, the other severe, injuries. The aim of this study was to identify parameters that lead to jumping over t...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2018.09.229
更新日期:2019-08-01 00:00:00
abstract:OBJECTIVES:To evaluate the validity of an integrated accelerometer and Global Positioning System (GPS) device to quantify swimming kinematics variables in swimming. DESIGN:Criterion validation study. METHODS:Twenty-one sub-elite swimmers completed three 100 m efforts (one butterfly, breaststroke and freestyle) in an ...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2013.04.007
更新日期:2014-03-01 00:00:00
abstract:OBJECTIVES:To examine the relationships between children's moderate-to-vigorous physical activity (MVPA), sedentary behaviours, and academic performance. DESIGN:This study investigated cross-sectional relationships between children's accelerometer-measured physical activity and sedentary behaviour patterns, and academ...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2016.02.010
更新日期:2016-12-01 00:00:00
abstract::The purpose of this study was to assess the validity and reliability of a Cosmed K4b2 portable telemetric gas analysis system. Twelve physically fit males performed a treadmill running session consisting of an easy 10 min run, a hard 3 min run and a 1 min sprint (with rest periods of 10 min separating each run), on fo...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/s1440-2440(04)80039-2
更新日期:2004-03-01 00:00:00
abstract::One component of the recent obesity epidemic is the sedentary behaviour of children and adolescents e.g., use of video games consoles. The new generation of video games requires body movements and might thus increase activity. The aim of this study was to evaluate whether such games could have an effect on physical ac...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2010.07.009
更新日期:2011-01-01 00:00:00
abstract::The primary aim of the study was to establish a link between aerobic adaptation and both the recovery from maximal short duration exercise, and the ability to maintain power output in a subsequent bout. The question as to whether the aerobic adaptations facilitating recovery are centrally or peripherally located was a...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/s1440-2440(09)60005-0
更新日期:1998-12-01 00:00:00
abstract:OBJECTIVES:The aim was to examine the associations between level of physical activity (PA) and non-hospital medical costs, and between physical activity and hospitalisations in older women from 1999 to 2013. DESIGN:Longitudinal observational study. METHODS:Data were collected from participants in the Australian Longi...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2017.10.022
更新日期:2018-06-01 00:00:00
abstract::Low levels of physical activity coupled with high levels of television viewing have been linked with obesity in children. The objective of this study was to assess the efficacy of 'Switch Off-Get Active', a 16-week controlled health education intervention, in increasing physical activity and reducing screen time and B...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2006.06.012
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to examine whether the use of machine learning improved the ability of a neuromuscular screen to identify injury risk factors in elite male youth football players. DESIGN:Prospective cohort study. METHODS:355 elite youth football players aged 10-18 years old completed a prospe...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2020.04.021
更新日期:2020-11-01 00:00:00
abstract::We challenge the tradition of fitness testing in schools on the basis of purpose, procedures and outcomes. A number of assumptions about validity of selected tests are raised. The need to be able to track fitness through childhood into adulthood is challenged with limited scientific evidence of longitudinal tracking. ...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2006.01.002
更新日期:2006-05-01 00:00:00
abstract:OBJECTIVES:As time with patients and resources are increasingly limited, it is important to determine if clinical tests can provide further insight into real-world behaviors linked to clinical outcomes. The purpose of this study was to determine which aspects of anthropometry and physical fitness testing are associated...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2019.12.005
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVES:To investigate the architectural and strength adaptations of the hamstrings following 6-weeks of inertial flywheel resistance training. DESIGN:Randomised, stratified training intervention METHODS: Twenty healthy males undertook 6-weeks of a conventional (n=10) or eccentrically biased (n=10) flywheel leg-cur...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2020.04.007
更新日期:2020-11-01 00:00:00
abstract::The aims of this study were to assess the durations of the different arm and leg stroke phases (propulsion, glide, and recovery) and the temporal arm-leg gaps between 12 competitive and 12 recreational breaststroke swimmers. The mean ages and best times for a 50-m breaststroke were, respectively, (recreational: 16.9+/...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2008.01.001
更新日期:2009-05-01 00:00:00
abstract::Attraction to physical activity is important to an individual's intrinsic motivation to engage in play, games and sports. While there are instruments designed to measure attraction to physical activity in middle childhood years, the lack of authentic measures in young children has impeded research in this area. In thi...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2009.05.009
更新日期:2009-09-01 00:00:00
abstract:OBJECTIVES:While several cross-sectional studies have investigated the acute effects of shoe drop on running biomechanics, the long-term consequences are currently unknown. This study aimed to investigate if the drop of standard cushioned shoes induces specific adaptations in running technique over a six-month period i...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jsams.2017.01.238
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVES:Sponsorship by manufacturers of unhealthy food can undermine the health promoting goals of sport. This study aimed to describe Australian children's exposure to organised sport, and compare time spent in specific sports with patterns of sponsorship of children's sport identified in previous studies. DESIGN:...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2013.07.005
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVES:To investigate the effects of custom-made foot orthoses on the torque- and power-cadence relationships and perceived comfort during maximal cycling exercises in a population of competitive road cyclists. DESIGN:Randomised, repeated measures, participant-blinded controlled study. METHODS:Twenty-four competi...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jsams.2015.04.015
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVES:The tackle event in rugby union ('rugby') contributes to the majority of players' injuries. Referees can reduce this risk by sanctioning dangerous tackles. A study in elite adult rugby suggests that referees only sanction a minority of illegal tackles. The aim of this study was to assess if this finding was ...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2017.10.016
更新日期:2018-06-01 00:00:00
abstract:UNLABELLED:The punt kick is important in many football codes and support leg kinematics and ground reaction forces have been implicated in injury and performance in kicking. OBJECTIVES:To evaluate ground reaction forces and support leg kinematics in the punt kick. DESIGN:Cross sectional study. METHODS:Seven elite Au...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2012.10.008
更新日期:2013-09-01 00:00:00
abstract::Based on the course-of-action theory, this study performed a situated analysis of three elite aerial freestyle skiers' activity. Data were collected by observation, videotaping and self-confrontation interviews retrospectively build the athletes' activity. The analysis identified units of action, thought, and feelings...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2007.06.005
更新日期:2008-09-01 00:00:00
abstract:OBJECTIVES:Our primary objective was to report the presence of a conditioned pain modulation (CPM) effect in people with localised mid-portion Achilles tendinopathy and whether changes occur over a 12-week period. Our secondary objectives were to quantify the proportion of participants who present for tendinopathy rese...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2020.10.015
更新日期:2020-11-04 00:00:00
abstract::Falls affect a significant number of older Australians and present a major challenge to health care providers and health systems. The purpose of this statement is to inform and guide exercise practitioners and health professionals in the safe and effective prescription of exercise for older community-dwelling people w...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章,实务指引,评审
doi:10.1016/j.jsams.2011.04.001
更新日期:2011-11-01 00:00:00
abstract::This study determined the pacing strategies and performance responses of six well-trained cyclists/triathletes (peak O2 uptake 66.4+/-3.7 ml x kg(-1) x min(-1), mean+/-SD) during seven simulated time-trials (TT) conducted on a wind-braked cycle ergometer. All subjects first performed a 40 km familiarisation ride (TT1)...
journal_title:Journal of science and medicine in sport
pub_type: 临床试验,杂志文章
doi:10.1016/s1440-2440(01)80031-1
更新日期:2001-06-01 00:00:00
abstract:OBJECTIVES:To assess; (1) differences in red blood cell distribution width between individuals with chronic (>1year), motor-complete cervical (n=21), upper-thoracic (n=27) and thoracolumbar (n=15) spinal cord injury and, (2) associations between red blood cell distribution width and cardiorespiratory fitness. DESIGN:P...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jsams.2019.08.015
更新日期:2020-02-01 00:00:00
abstract:OBJECTIVES:To investigate the effects of vitamin D supplementation on muscle strength in healthy individuals. DESIGN:A systematic review with meta-analysis. METHODS:In October 2013 a computerised literature search of three databases (PubMed, Web of Knowledge and Scopus) was performed. Included in the review were cont...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.jsams.2014.07.022
更新日期:2015-09-01 00:00:00
abstract::Physical activity is important for the health of all individuals, however, the determinants of physical activity behaviour for women who are overweight remain largely unexplored. The purpose of this investigation was to explore a range of factors that influence participation in physical activity for a group of women w...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2007.08.002
更新日期:2008-11-01 00:00:00