Abstract:
:The aim of this study was to examine the effects of an early dismissal (after 5-min play) on work-rate in a professional soccer match. A computerised player tracking system was used to assess the work-rates of seven players who completed the match on a team with 10 players. A minute-by-minute analysis of the remaining 91min following the dismissal was performed for the total distance covered, the distance covered in five categories of movement intensity and the recovery time between high-intensity efforts for each player. The data were calculated for each half and for three equal intervals within each half and profiled against normative data for the same players obtained from the analysis of 15 games in the same season. Following the dismissal, the players covered a greater total distance than normal (p<0.025), particularly in moderate-intensity activities (p<0.01) and had shorter recovery times between high-intensity efforts (p<0.025). In contrast, there was a significant reduction between game halves for total distance covered at both the highest (p<0.025) and lowest running intensities (p<0.01). However, there were no differences in high-intensity activities across the three intervals in the second-half. These findings suggest that in 11 vs. 11, players may not always utilise their full physical potential as this match illustrated an increase in overall work-rate when reduced to 10 players. However, as a team with 10 players is likely to incur higher levels of fatigue, tactical alterations may be necessary and/or players may adopt a pacing strategy to endure the remainder of the match.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Carling C,Bloomfield Jdoi
10.1016/j.jsams.2008.09.004subject
Has Abstractpub_date
2010-01-01 00:00:00pages
126-8issue
1eissn
1440-2440issn
1878-1861pii
S1440-2440(08)00190-4journal_volume
13pub_type
杂志文章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::Injuries cause more morbidity among soldiers in the U.S. Army than any other health condition. Over two-thirds of U.S. soldiers' injuries occur gradually from cumulative micro-traumatic damage to the musculoskeletal system as a result of physical training activities. Paradoxically, the very physical training activitie...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2018.02.011
更新日期:2018-11-01 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: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::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:To compare catastrophic injury rates between the 14 South African Provincial Rugby Unions. DESIGN:A prospective, population-based study conducted among all South African Unions between 2008-2014. METHODS:Player numbers in each Union were obtained from South African Rugby's 2013 Census. Catastrophic injurie...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2017.01.232
更新日期:2017-07-01 00:00:00
abstract:OBJECTIVES:We determined whether perceptually-regulated, high-intensity intermittent runs in hypoxia and normoxia induce similar running mechanics adjustments within and between intervals. DESIGN:Within-participants repeated measures. METHODS:Nineteen trained runners completed a high-intensity intermittent running pr...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2020.04.001
更新日期:2020-11-01 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:This study aimed to determine adjustments in spring-mass model characteristics, plantar loading and foot mobility induced by an exhaustive run. DESIGN:Within-participants repeated measures. METHODS:Eleven highly-trained adolescent middle-distance runners ran to exhaustion on a treadmill at a constant veloc...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2014.01.007
更新日期:2015-03-01 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: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::Limited data is available on accuracy and validity of video-based, GPS and electronic tracking systems, particularly with reference to curved courses and short high intensity running activities. The main goal of this study was to assess soccer-specific accuracy and validity of the radio-frequency based local position ...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2010.04.003
更新日期:2010-11-01 00:00:00
abstract::This study examined the relationship between the bowling workload of first-class fast bowlers and injury with the aim of identifying a "safe" fast bowling workload threshold. Twelve male fast bowlers (mean age 25 years) from an Australian state cricket squad were observed for the 1999--2000 cricket season. Workload wa...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/s1440-2440(04)80014-8
更新日期:2004-06-01 00:00:00
abstract:OBJECTIVES:To explore the association between electronic media exposure (television viewing time, personal computer/video game use, total screen time), and waist circumference and body mass index, and study whether this association is independent of cardiorespiratory fitness, in a representative sample of adolescents f...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2013.09.010
更新日期:2014-09-01 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:Our study objectives were twofold: 1) examine whether users and non-users of different types of sport supplements vary in doping attitudes and sport supplement beliefs, and 2) determine whether the type of sport supplement is directly and indirectly (via sport supplement beliefs) related to doping attitudes....
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2020.09.012
更新日期:2020-09-23 00:00:00
abstract:OBJECTIVES:Military-, rescue- and law-enforcement personnel require a high physical capacity including muscular strength. The present study hypothesized that 9 weeks of volume matched concurrent short frequent training sessions increases strength more efficiently than less frequent longer training sessions. DESIGN:A r...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2020.03.013
更新日期:2020-10-01 00:00:00
abstract:OBJECTIVES:Athletes who train indoors during the winter months exhibit low serum 25-hydroxyvitamin D [25(OH)D] concentrations due to a lack of sunlight exposure. This has been linked to impaired exercise performance. The purpose of this study was to assess the effects of oral vitamin D₃ supplementation on selected phys...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2013.03.007
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVES:To determine the effects of "strides" with a weighted-vest during a warm-up on endurance performance and its potential neuromuscular and metabolic mediators. A bout of resistance exercise can enhance subsequent high-intensity performance, but little is known about such priming exercise for endurance performa...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2013.12.005
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVES:Research is equivocal regarding endurance performance benefits of external nasal dilators, and currently research focusing on internal nasal dilators is non-existent. Both devices are used within competitive cycling. This study examined the influence of external and internal nasal dilation on cycling economy...
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.2016.08.018
更新日期:2017-04-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to investigate the effect of 16 weeks of Bikram yoga on perceived stress, self-efficacy and health related quality of life (HRQoL) in sedentary, stressed adults. DESIGN:16 week, parallel-arm, randomised controlled trial with flexible dosing. METHODS:Physically inactive, stress...
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.2017.08.006
更新日期:2018-04-01 00:00:00
abstract::Early childhood is a critical period for the development of fundamental movement skills (FMS). Children who do not master FMS are more likely to experience failure in the motor domain and less likely to participate in sport and games during childhood and adolescence. Studies among primary school aged children report l...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2009.05.010
更新日期:2010-09-01 00:00:00
abstract::Although injuries to golfers are not common, both survey studies and hospital emergency department records have provided objective evidence that golfers are sometimes at risk of injury. While many golf injury studies describe the associated mechanisms and types of injuries, less attention has been given to research re...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章,评审
doi:10.1016/s1440-2440(00)80049-3
更新日期:2000-03-01 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:To investigate whether psychosocial variables mediate the effect of a multicomponent intervention on screen time reduction among Brazilian students from schools located in vulnerable areas. DESIGN:A cluster-randomized controlled trial with a 4-month follow-up. METHODS:This study was conducted with 1085 stu...
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.2019.09.004
更新日期:2020-03-01 00:00:00
abstract::Children's physical activity (PA) patterns change from day to day. This intra-individual variability affects precision when measuring key physical activity and sedentary behaviour variables. This paper discusses strategies used to reduce the random error associated with intra-individual variability and demonstrates th...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2008.09.009
更新日期:2009-09-01 00:00:00
abstract::The aim of the present study was to evaluate and compare the upper-body aerobic fitness characteristics in 2 groups of competitive surfers with different performance levels. Thirteen male competitive surfers performed an incremental dry-land board paddling test to determine specific peak oxygen uptake (VO2peak), peak ...
journal_title:Journal of science and medicine in sport
pub_type: 临床试验,杂志文章
doi:10.1016/s1440-2440(05)80023-4
更新日期:2005-03-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to investigate if and to what extent small lateral wedges inserted under the ski boot, known as canting, could impact knee kinematics/kinetics, balance, and neuromuscular activity in recreational alpine skiers in the laboratory setting. DESIGN:Experimental, crossover study with rep...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2020.05.009
更新日期:2020-05-17 00:00:00
abstract::The current schedule of the Brazilian Soccer Championship may not give players enough recovery time between games. This could increase the chances of muscle damage and impaired performance. We hypothesized that plasma creatine kinase (CK) activity could be a reliable indirect marker of muscle overload in soccer player...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2007.10.004
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVES:To examine the usefulness of selected physiological and perceptual measures to monitor fitness, fatigue and running performance during a pre-season, 2-week training camp in eighteen professional Australian Rules Football players (21.9±2.0 years). DESIGN:Observational. METHODS:Training load, perceived ratin...
journal_title:Journal of science and medicine in sport
pub_type: 杂志文章
doi:10.1016/j.jsams.2012.12.003
更新日期:2013-11-01 00:00:00