Abstract：
OBJECTIVES:It has been hypothesised that fatigue may be a major factor in tackle-related injury risk in rugby union and hence more injuries occur in the later stages of a game. The aim of this study is to identify changes in ball carrier or tackler proficiency characteristics, using elite level match video data, as player time-in-game increases. DESIGN:Qualitative observational cohort study. METHODS:Three 2014/15 European Rugby Champions Cup games were selected for ball carrier and tackler proficiency analysis. Analysis was only conducted on players who started and remained on the field for the entire game. A separate analysis was conducted on 10 randomly selected 2014/15 European Rugby Champions Cup/Pro 12 games to assess the time distribution of tackles throughout a game. A Chi-square test and one-way way ANOVA with post-hoc testing was conducted to identify significant differences (p<0.05) for proficiency characteristics and tackle counts between quarters in the game, respectively. RESULTS:Player time-in-game did not affect tackle proficiency for both the ball carrier and tackler. Any results that showed statistical significance did not indicate a trend of deterioration in proficiency with increased player time-in-game. The time distribution of tackles analysis indicated that more tackles occurring in the final quarter of the game than the first (p=0.04) and second (p=<0.01). CONCLUSIONS:It appears that player time-in-game does not affect tackler or ball carrier tackle technique proficiency at the elite level. More tackles occurring in the final quarter of a game provides an alternative explanation to more tackle-related injuries occurring at this stage.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Tierney GJ,Denvir K,Farrell G,Simms CKdoi
10.1016/j.jsams.2017.06.023subject
Has Abstractpub_date
2018-02-01 00:00:00pages
221-225issue
2eissn
1440-2440issn
1878-1861pii
S1440-2440(17)30940-4journal_volume
21pub_type
杂志文章abstract：OBJECTIVES:The vast majority of rugby union ('rugby') participants are community-based players; however, the majority of injury surveillance studies reported relate to the elite, professional game. A potential reason for this dearth of studies could be the perceived difficulty of using the consensus statement for injur...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2019.08.006
更新日期：2019-12-01 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：:The relationships between lower limb strength and two Australian football (AF) skills were assessed for 19 sub-elite AF players. Knee extension (KE) and knee flexion (KF) strength were assessed using a Biodex isokinetic dynamometer at angular velocities of 60, 240 and 360 degrees/sec. The two AF skills evaluated were ...
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)80042-6
更新日期：2001-09-01 00:00:00
abstract：OBJECTIVES:Relations between lower limb muscle strength and female ACL injury risk are well documented. How these relations combine with key ACL geometries however, is unknown. Identifying how these combined factors are impacted by maturation would benefit current risk screening and prevention efforts. This study compa...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2015.07.016
更新日期：2016-07-01 00:00:00
abstract：OBJECTIVES:To explore the impact of uninterrupted sitting versus sitting with resistance-type activity breaks on adolescents' postprandial glucose responses while consuming a diet varying in energy. DESIGN:Cross-over randomised trial. METHODS:Thirteen healthy participants (16.4±1.3years) completed a four-treatment cr...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2017.06.002
更新日期：2018-03-01 00:00:00
abstract：OBJECTIVES:There are little data on the potential benefits and adverse events of statins among physically fit individuals. Our objective was to examine the associations of statin use with beneficial cardiovascular outcomes and adverse events in active duty military (a surrogate for high level of physical fitness). DES...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2016.12.075
更新日期：2017-07-01 00:00:00
abstract：OBJECTIVES:This study aimed to (1) investigate cardiometabolic risk markers in young women (18-30 years) with overweight/obesity, and (2) establish whether the measures of waist circumference and body mass index possess similar associations of cardiometabolic risk. DESIGN:Cross-sectional. METHODS:Cardiometabolic risk...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2013.09.011
更新日期：2014-11-01 00:00:00
abstract：OBJECTIVES:Overtraining syndrome (OTS) leads to worsened sports performance and fatigue. The pathophysiology of OTS has not been entirely elucidated, and there is a lack of accurate markers for its diagnosis. Changes in hormonal responses implicated in OTS were stimulated by exercise, which has limited their interpreta...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2017.10.033
更新日期：2018-07-01 00:00:00
abstract：OBJECTIVES:Professional ballet dancers may have hip bony morphology that predisposes them to cartilage or labral injury. However, the relationship between bony morphology and pathology has not been investigated in ballet. This study investigates associations between bony morphology, chondrolabral defects and hip pain i...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2018.02.014
更新日期：2018-09-01 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:This study explores the reliability and validity of the SenseWear Armband (SWA) and Actical (ACT) for free-living total energy expenditure, and energy expenditure during rest and light-to-moderate exercises (walking, ergocycling). DESIGN:Participants wore the 2 devices during 7 days (free-living) and then p...
journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
doi：10.1016/j.jsams.2014.11.001
更新日期：2016-01-01 00:00:00
abstract：:The epidemiological rationale for a focus on physical activity (PA) among Aboriginal and Torres Strait Islander (ATSI) people is compelling. PA programs have significant potential to benefit ATSI people and their communities through their contribution to reducing chronic disease, improving physical and mental health a...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,评审
doi：10.1016/s1440-2440(04)80276-7
更新日期：2004-04-01 00:00:00
abstract：:Many team sports require participants to repeatedly produce maximal or near maximal sprints of short duration (1-7s) with brief recovery periods, over an extended period of time (60-90 min). Therefore, an important fitness component for these sports is what is often termed repeated sprint ability (RSA). A variety of t...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(01)80004-9
更新日期：2001-03-01 00:00:00
abstract：:The progress of injury prevention research in Australian football to date has been slow despite its recognition as a public health goal. In particular, field-based studies to identify injury risk factors and evaluate the effectiveness of injury prevention strategies need to be undertaken to ensure safety gains in this...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(03)80259-1
更新日期：2003-06-01 00:00:00
abstract：OBJECTIVES:To examine the effects of match-related and individual player characteristics on running performance in professional rugby league matches. DESIGN:Longitudinal observational study. METHODS:Global positioning system (GPS) and technical performance measures (attacking involvements and tackles made) were colle...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2015.06.008
更新日期：2016-06-01 00:00:00
abstract：OBJECTIVES:Resistance exercise is used as a non-pharmacological tool to elicit both gains in and maintenance of physical function in the elderly. Thus, the present study examined the acute response of creatine kinase and interleukin-6 following an eccentric resistance exercise session in elderly obese women classified ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2013.09.012
更新日期：2014-11-01 00:00:00
abstract：OBJECTIVES:The objective of this study was to examine the association between resistance exercise and cardiovascular disease risk, independent of body composition, physical activity and aerobic capacity, in healthy women. DESIGN:A cross-sectional analysis including 7321 women with no history of heart disease, hyperten...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2014.09.009
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVES:This review informed development of the first national Physical Activity (PA) Guidelines for Older Australians with Mild Cognitive Impairment (MCI) or Subjective Cognitive Decline (SCD) (http://www.dementiaresearch.org.au/images/dcrc/output-files/1567-pa_guidelines_for_mci_or_scd_full_report_final.pdf). Thes...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,评审
doi：10.1016/j.jsams.2020.03.003
更新日期：2020-10-01 00:00:00
abstract：:Research which has examined the catastrophe models of anxiety and performance is discussed. The conclusion drawn is that the evidence supports the notion of hysteresis, and partially supports the interactive effects prediction of the catastrophe models. Two potential explanations of anxiety induced performance catastr...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(99)80175-3
更新日期：1999-10-01 00:00:00
abstract：OBJECTIVES:This paper sought to determine the psychological characteristics and skills that are fundamental to batting success in the sport of cricket. DESIGN AND METHOD:Following on from the findings of an earlier qualitative investigation which suggested that a favourable mix of psychological attributes and skills a...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2011.07.003
更新日期：2012-01-01 00:00:00
abstract：OBJECTIVES:We investigated if cold water immersion (CWI) affects exercise performance during a prolonged intermittent sprint test (IST), designed to mimic activity patterns of team-sports. DESIGN:Randomized-crossover design. METHODS:Ten male team-sport players completed 3 IST protocols (two 40-min "halves" of repeate...
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.2019.07.002
更新日期：2019-12-01 00:00:00
abstract：OBJECTIVES:Despite evidence suggesting caution, employment of body mass index (BMI, kgm-2) as a proxy for percentage of body fat (PFat) in longitudinal studies of children and adolescents remains commonplace. Our objective was to test the validity of change in BMI as a proxy for change in PFat measured by dual-energy X...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2018.08.002
更新日期：2019-03-01 00:00:00
abstract：OBJECTIVES:Australian Football (AF) is a collision sport containing high injury rates in junior competition. Successful performance at the elite junior level not only requires superior specific football knowledge and skills, but also well developed fitness qualities. However, no studies have examined the link between p...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2012.09.005
更新日期：2013-07-01 00:00:00
abstract：OBJECTIVES:This study investigated the influence of a moderate caffeine dose on endurance cycle performance and thermoregulation during prolonged exercise in high ambient temperature. DESIGN:Double-blind cross-over study. METHODS:Eight healthy, recreationally active males (mean±SD; age: 22±1 years; body mass: 71.1±8....
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.2017.03.017
更新日期：2017-11-01 00:00:00
abstract：OBJECTIVES:Gender-related differences are frequently used in medicine. Electrocardiograms are also subject to such differences. This study evaluated gender differences in ECG parameters of young athletes, discussing the possible implications of these differences for ECG criteria used in the cardiovascular screening of ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2016.06.010
更新日期：2017-02-01 00:00:00
abstract：OBJECTIVES:This study investigated the effects of a previously recommended dose of sprint training (ST) in young male soccer players of differing maturity status. DESIGN:Quasi-experimental design. METHODS:Male soccer players from two professional academies were divided into Pre-PHV (Training: n=12; Control: n=13) and...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2017.09.012
更新日期：2018-05-01 00:00:00
abstract：OBJECTIVES:To explore the practicality of using functional principal components analysis (fPCA) and intra-athlete z-score changes for individual athlete monitoring post-ACL injury and surgery. DESIGN:A single athlete case study using within-athlete repeated measures in the context of applied athlete monitoring. METHO...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2019.03.010
更新日期：2020-03-01 00:00:00
abstract：OBJECTIVES:The aim of this study was to investigate relationships between trait emotional intelligence and emotional state changes over the course of an ultra-endurance foot race covering a route of approximately 175 miles (282 km) and held in set stages over six days. DESIGN:A repeated measures field design that soug...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2011.03.001
更新日期：2011-07-01 00:00:00
abstract：OBJECTIVES:Swimmers must enter a marshalling call-room 20min prior to racing, which results in some swimmers completing their warm-up 45min pre-race. Since a recovery period longer than 15-20min may prove problematic, this study examined 200m freestyle performance after a 20 and 45min post-warm-up recovery period. DES...
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.2012.06.002
更新日期：2013-03-01 00:00:00
abstract：OBJECTIVES:The purpose of this meta-analysis was to examine the effect of flywheel (FW) resistance training with Eccentric Overload (FW-EOT) on muscle size and functional capacities (i.e. strength and power) in athletes and healthy subjects, and to compare FW-induced adaptations with those triggered by traditional resi...
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.2017.03.004
更新日期：2017-10-01 00:00:00
