Abstract：
:To delineate and compare the isokinetic neck strength profile of senior elite rugby players. One hundred and eighty-nine rugby players (mean; 95% confidence intervals: 24.31; 23.87-24.75 years) were sampled from South African provincial teams and assessed anthropometrically and isokinetically according to a set protocol. Specially designed equipment was used to perform the isokinetic assessment and gathered data were analysed according to positional categories (front, second, back row and backline players). Second row forwards performed the best in the measure of peak flexion (44.04; 40.41-47.67Nm) and lateral flexion right (69.42; 63.36-75.48Nm) and left (66.31; 61.21-71.41Nm) torque, while the front row forwards performed best in peak extension torque (65.60; 62.12-69.08Nm). Few significant differences (p<0.05) existed between the forward positional categories. However, they all proved to be significantly (p<0.05) stronger and more powerful than the backline players. Peak torque values relative to body weight indicated much less variability between all positional categories. Cervical flexor to extensor ratios showed that front row forwards (65; 61.94-68.06%) had significantly (p<0.05) lower ratios than the other positional categories. Absolute peak torque is an important positional prerequisite, especially among the front row forwards. Isokinetic neck strength data presented here provides a benchmark for the effective and quantified comparison of neck strength variables, assisting with preparticipation screening and the effective rehabilitation of injured senior rugby union players.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Olivier PE,Du Toit DEdoi
10.1016/j.jsams.2007.01.009subject
Has Abstractpub_date
2008-04-01 00:00:00pages
96-105issue
2eissn
1440-2440issn
1878-1861pii
S1440-2440(07)00081-3journal_volume
11pub_type
杂志文章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：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：:Reaction time (RT), movement time (MT), total response time (RMT) and accuracy of elite and novice fencers was studied under three levels of target choice (single-, two- and four-targets) with three variations of movement distance (short, medium and long lunge). In addition, electromyographic activity (EMG) of selecte...
journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
doi：10.1016/s1440-2440(00)80011-0
更新日期：2000-12-01 00:00:00
abstract：:Bone adapts to altered physical stimuli, dietary changes, or injury. Dietary calcium and vitamins play important roles in maintaining skeletal health, but high-fat diets are pervasive in western cultures and may contribute to the increasing prevalence of osteoporosis and incidence of related hip fractures. Exercise he...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,评审
doi：10.1016/s1440-2440(00)80040-7
更新日期：2000-09-01 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：: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:Despite physical literacy receiving increased attention as a potential gateway to physical activity participation, research establishing the link between physical literacy as a higher-order latent construct and physical activity is scant. The purpose of this study was to identify physical literacy profiles o...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2020.05.007
更新日期：2020-11-01 00:00:00
abstract：:The aim was to investigate the effects of fatigue induced by electrical stimulation superimposed onto voluntary muscular contractions on postural abilities and strategy (n=8). Two groups of subjects performed a fatiguing of the triceps surae, the first by voluntary muscular contractions (group VOL) and the second (n=8...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2007.10.006
更新日期：2009-01-01 00:00:00
abstract：:The purpose of this project was to determine whether changing patterns of temperature and humidity, as expected in the morning versus afternoon, had a differential effect on thermoregulation and endurance performance. Eight male distance runners each participated in two heat pattern tests consisting of two hours tread...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(99)80005-x
更新日期：1999-12-01 00:00:00
abstract：OBJECTIVES:To profile multi-year injury incidence and severity trends in elite junior tennis players from a national program. DESIGN:Prospective cohort. METHODS:Injury data was collated by sex, age and region for all nationally-supported Australian junior players (58m, 43f 13-18y) between 2012-2016. Injury was define...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2018.06.006
更新日期：2019-01-01 00:00:00
abstract：OBJECTIVES:Compare the lower-limb mechanics and anterior cruciate ligament (ACL) injury risk of athletes using a habitual rear-foot (RF) and fore-foot (FF) fall pattern during unplanned sidestepping (UnSS). DESIGN:Experimental cross-sectional. METHODS:Nineteen elite female field hockey players attended one biomechani...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2016.06.002
更新日期：2017-01-01 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：:The purpose of this investigation was to determine if a single set of strenuous squat exercise would result in an acute oxidative stress, as demonstrated previously by a single sprint. Thirteen resistance trained men performed one set of 15 repetitions of barbell squats using 70% of one repetition maximum and a 30 s m...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2006.07.014
更新日期：2007-12-01 00:00:00
abstract：OBJECTIVES:To provide a systematic review of studies that investigated the effects of Active Break (AB) school-based interventions on Physical Activity (PA) levels, classroom behavior, cognitive functions, and academic performance in primary school children. DESIGN:Systematic review and meta-analysis. METHODS:Searche...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,meta分析
doi：10.1016/j.jsams.2019.10.008
更新日期：2020-04-01 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：OBJECTIVES:To test the validity and intra-instrument reliability of the HJ-203 Omron pedometer when worn in different positions, under controlled and free-living conditions. DESIGN:Cross-sectional. METHODS:Forty healthy adults (20 men, 29.5±7.7 years) participated in three controlled tests, i.e. 20 step test, stair c...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2012.02.002
更新日期：2012-09-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to determine whether V˙O(2) kinetics and specifically, the time constant of transitions from rest to heavy (τ(p)H) and severe (τ(p)S) exercise intensities, are related to middle distance swimming performance. DESIGN:Fourteen highly trained male swimmers (mean ± SD: 20.5 ± 3.0 yr; 75...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2011.05.012
更新日期：2012-01-01 00:00:00
abstract：OBJECTIVES:To survey injury/illness in the National Basketball Association over a 25-year period and examine the relationship of injury/illness to team performance. DESIGN:A retrospective correlational design. METHODS:Trends were examined in reported numbers of players injured/ill during a season and games missed due...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2014.05.005
更新日期：2015-05-01 00:00:00
abstract：:Recently Sports Medicine Australia (SMA) and the Australian Association for Exercise and Sport Science (AAESS) developed guidelines for pre-exercise screening and supervision of fitness testing, based on the American College of Sports Medicine (ACSM) system. The procedure involves classifying individuals into one of t...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(98)80007-8
更新日期：1998-01-01 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:To determine the residual acute vibration-stretching effect on preactivation levels, short-latency stretch reflex, and performance during execution of drop jumps. DESIGN:Repeated measures. METHODS:Eleven male recreational athletes performed a set of three 45cm drop jumps before and immediately after a 30s ...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2012.11.886
更新日期：2013-09-01 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 benefit of job-related employment standards in physically demanding occupations are well known. A number of methodological frameworks have been established to guide the development of physical employment standards for single job functions. In the case of an organisation comprised of multiple and diverse employment...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章,评审
doi：10.1016/j.jsams.2018.02.008
更新日期：2018-11-01 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：:The purpose of the present study was to accurately and reliably analyse the nature of movement undertaken by National Rugby League (NRL) referees during matches played in the 2000 season. The movements of NRL referees (n=5) were analysed from videotape footage of ten games. The researchers assigned each movement to on...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/s1440-2440(03)80027-0
更新日期：2003-09-01 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
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：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：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：OBJECTIVES:Investigate sociodemographic factors associated with physical activity and sport participation among Indigenous children registered in the New South Wales (NSW) government-funded Active Kids voucher program in 2018, including comparison with non-Indigenous children. DESIGN:Cross-sectional study. METHODS:Th...
journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
doi：10.1016/j.jsams.2020.06.016
更新日期：2020-12-01 00:00:00
