Injury prediction in veteran football players using the Functional Movement Screen™

ABSTRACT

The Functional Movement Screen? (FMS?) is aimed at assessing fundamental movements and is often used to identify players’ injury risk. The purpose of this study was to determine whether the FMS? can be used to predict injuries in veteran footballers (aged > 32 years). Eighteen veteran football teams (n = 238) were recruited and prospectively followed for 9 months. The players (44 ± 7 years; 178 ± 7 cm, 84 ± 11 kg) performed the FMS? at the start of the study period. Players’ exposure hours and injuries were recorded. The difference of FMS? overall score between injured and uninjured players was not significant (11.7 ± 2.9 vs 12.2 ± 2.8 points; Mann-Whitney U-test P = 0.17). Players scoring <10 (score < 1 standard deviation [SD]) below the mean) had a significantly higher injury incidence (z-statistics P < 0.05) compared to an intermediate reference group (mean ± 1 SD; scores of 10–14). No lower injury incidence for players with scores of >14 (score > 1 SD above the mean) was found. Further analyses of potential risk factors suggest higher age, lower body mass and a longer football career to be risk factors for injuries. The findings of this study suggest that the suitability of the FMS? for injury prediction in veteran footballers is limited.     

Born to perform,Play to win

作为一个有幸见证了游戏成为一个巨大产业,而又从小到大花大把时间投身电子游戏的人来说,我打赌,我会和你喋喋不休地讨论一个星期关于电子游戏的话题。小时候的红白机的魂斗罗,风靡全球的街头霸王还有不可一世的拳皇,游戏几乎是我除了满世界疯跑以外所有的消遣。相比80年后出生的孩子来说,我对电脑和电脑游戏的了解并没有什么优势;但是却同他们一样,在与电脑游戏接触的     

Comparison of three generations of ActiGraph™ activity monitors in children and adolescents

Abstract In this study, we evaluated agreement among three generations of ActiGraph? accelerometers in children and adolescents. Twenty-nine participants (mean age?=?14.2?±?3.0 years) completed two laboratory-based activity sessions, each lasting 60?min. During each session, participants concurrently wore three different models of the ActiGraph? accelerometers (GT1M, GT3X, GT3X+). Agreement among the three models for vertical axis counts, vector magnitude counts, and time spent in moderate-to-vigorous physical exercise (MVPA) was evaluated by calculating intraclass correlation coefficients and Bland-Altman plots. The intraclass correlation coefficient for total vertical axis counts, total vector magnitude counts, and estimated MVPA was 0.994 (95% CI?=?0.989-0.996), 0.981 (95% CI?=?0.969-0.989), and 0.996 (95% CI?=?0.989-0.998), respectively. Inter-monitor differences for total vertical axis and vector magnitude counts ranged from 0.3% to 1.5%, while inter-monitor differences for estimated MVPA were equal to or close to zero. On the basis of these findings, we conclude that there is strong agreement between the GT1M, GT3X, and GT3X+ activity monitors, thus making it acceptable for researchers and practitioners to use different ActiGraph? models within a given study.     

Comparison of three generations of ActiGraph™ activity monitors in children and adolescents

Abstract

In this study, we evaluated agreement among three generations of ActiGraph? accelerometers in children and adolescents. Twenty-nine participants (mean age = 14.2 ± 3.0 years) completed two laboratory-based activity sessions, each lasting 60 min. During each session, participants concurrently wore three different models of the ActiGraph? accelerometers (GT1M, GT3X, GT3X+). Agreement among the three models for vertical axis counts, vector magnitude counts, and time spent in moderate-to-vigorous physical exercise (MVPA) was evaluated by calculating intraclass correlation coefficients and Bland-Altman plots. The intraclass correlation coefficient for total vertical axis counts, total vector magnitude counts, and estimated MVPA was 0.994 (95% CI = 0.989–0.996), 0.981 (95% CI = 0.969–0.989), and 0.996 (95% CI = 0.989–0.998), respectively. Inter-monitor differences for total vertical axis and vector magnitude counts ranged from 0.3% to 1.5%, while inter-monitor differences for estimated MVPA were equal to or close to zero. On the basis of these findings, we conclude that there is strong agreement between the GT1M, GT3X, and GT3X+ activity monitors, thus making it acceptable for researchers and practitioners to use different ActiGraph? models within a given study.     

Improving health-related fitness in adolescents: the CrossFit Teens™ randomised controlled trial

The aim of this study was to evaluate the preliminary efficacy and feasibility of the CrossFit Teens? resistance training programme for improving health-related fitness and resistance training skill competency in adolescents. This assessor-blinded randomised controlled trial was conducted in one secondary school in the Hunter Region, Australia, from July to September 2013. Ninety-six (96) students (age = 15.4 (.5) years, 51.5% female) were randomised into intervention (n = 51) or control (n = 45) conditions for 8-weeks (60 min twice per week). Waist circumference, body mass index (BMI), BMI-Z score (primary outcomes), cardiorespiratory fitness (shuttle run test), muscular fitness (standing jump, push-up, handgrip, curl-up test), flexibility (sit and reach) and resistance training skill competency were measured at baseline and immediate post-intervention. Feasibility measures of recruitment, retention, adherence and satisfaction were assessed. Significant group-by-time intervention effects were found for waist circumference [?3.1 cm, P < 0.001], BMI [?1.38 kg · m^?2, P < 0.001], BMI-Z [?0.5 z-scores, P < 0.001], sit and reach [+3.0 cm, P < 0.001], standing jump [+0.1 m, P = 0.021] and shuttle run [+10.3 laps, P = 0.019]. Retention rate was 82.3%. All programme sessions were delivered and participants’ mean satisfaction scores ranged from 4.2 to 4.6 out of 5. The findings demonstrate that CrossFit Teens? is a feasible and efficacious programme for improving health-related fitness in adolescents.     

‘Africa's Tournament'? The Branding Legacy of the 2010 FIFA World Cup™

In 2010, South Africa became the first country on the African continent to host the FIFA World Cup. Crucially the hosting of such a prestigious tournament was seen as a chance to prove that this developing nation could host an event of this magnitude as efficiently as the developed economies who had hosted the previous editions of the event, such as Germany in 2006 and Korea and Japan in 2002. Significantly though, this flagship event was also promoted by FIFA as ‘Africa's Tournament' with South Africa encouraged to share the identity and success of 2010 with the entire African continent. Based on the findings from in-depth interviews conducted with event and destination stakeholders from national and regional South African Government departments, this article explores the 2010 tournament as a branding opportunity that was used to promote both the continent of Africa as well as the South African nation. Expanding upon previous studies in this area the challenges and successes of hosting the 2010 World Cup are examined as is the role of mega-events such as the 2010 FIFA World Cup in generating a nation and continent-wide branding legacy. Stakeholders specialising in sport event management, tourism, operations and communications reflect on the branding and exposure for both Africa and South Africa achieved as a result of the event and the degree to which this was coordinated and co-created between various stakeholders. Insights are also given as to the degree to which the branding gains achieved during the event have been leveraged post-2010. As such, this article offers an original socio-historic perspective on existing studies examining the impact of the 2010 tournament.     

WELCOME to安菲尔德

这是一家被荣誉和辉煌渗透的球会,请快到安菲尔德来看看吧。 联络方式地址:ANFIELD,ANFIELD ROAD,LIVERPOOLL69 4PQ电话:俱乐部0151 263 2361订票:0151 260 8680俱乐部热线:0891 121 18424小时赛事热线:0870 444 4949网址:WWW.LIVERPOOLFC.NET 历史: 利物浦俱乐部的前身实际上是他们的死敌埃弗顿俱乐部,最早在利物浦这座城市,安菲尔     

Face to Face

头一轮比赛我们不希望阿森纳一上来就进球,让他们的进攻快速得逞,于是我就让自己的站位未循常规,利用身体优势,尽量靠近守门员。在上半场,我们知道阿森纳善于打攻势足球,于是我们想更多地纠缠着他们,不让他们的进攻太快,这样,他们才只打进了一个球。但下半场维埃拉变聪明了,他已经知道我的弱点在于动作有些慢,所以他带着球贴着我身边过去,就好像我防守他犯规了一样。但我没有那样做,你们可以从电视的录像中看到,他跳过了我的腿。对于我来说倒不算什么,这也不是我第一次犯规,仅仅是比赛的一部分而已。 ——德塞利     

ActivPAL™ determined sedentary behaviour,physical activity and academic achievement in college students

The aim of this study was to examine relationships between activPAL?-determined sedentary behavior (SB) and physical activity (PA) with academic achievement. A total of 120 undergraduates (N = 57 female; 20.6 ± 2.3 years) participated in the study. Academic achievement was measured as the grade point average obtained from all completed courses. Participants wore on the right tight an activPAL? for 7 days to determine total sedentary time, total number of sedentary breaks, sedentary bouts, standing time, light and moderate-to-vigorous physical activity (MVPA). Separate multiple linear regression models were performed to examine associations between SB variables and academic achievement. Light PA, MVPA, total sedentary time, total standing time, or total number of sedentary breaks were not related to academic achievement. Independently of PA, the amount of time spent in sedentary bouts of 10-20min during weekdays was positively related to academic achievement. Given that college students spend the majority of their workday in environments that encourage prolonged sitting, these data suggest that interruptions in prolonged periods of sitting time every 10-20min via short breaks may optimize cognitive operations associated with academic performance.     

Face to Face

第一次看完整地看一届比赛的时候我才13岁,天天粘在我们家的电视前,每场保加利亚对美国的比赛我都没落下。那时的街上就跟过节一样,尤其是当我们在四分之一决赛中打败德国后,大东都冲到街上,像是在开一个露天大PARTY。     

Face to Face

I am waiting for Monaco to set the club’s politics.I hope it will allow me to havean ambitious football project in both the short and long term.The officials Know myposition and my desires.Now it is up to them.considering the football world Knows mysituation, that I will be free in July 2005.Everybody writes their own story.and theplayers are writing a superb page for Monaco and all of French football.It’s proof thatin football.anything can happen-you just have to believe until the end.It wasn’t easybut we deserved it.This is exceptional.” Deschamps     

Face to Face

梅尔奇舆特日记MARTO MELCHTOT2005年1月28日 真是很高兴能重回斯坦福桥比赛,至少对于我来说,那应该是个特殊的时刻,因为我是以蓝军对手的身份回去的,同时,这也是我在继去年夏天离开那里后的首次回归,美好的一天,我想。 比赛结果是蓝军2比0淘汰了我们,事实上这个结果很正常,尽管只是一场稍显次要的足总杯比赛,但以切尔西目前骁勇的气势,又有谁可以阻止他们呢? 还是讲讲我故地重游的感受吧。很多人可能认为,我会因为蓝军目前的巨大胜利而后悔离开那里,但实际上我真是一点那种想法也没有,我一点都不妒忌他们,只是希望他们能在未来的日子里继续好运。     

Differences in Resting Metabolic Rate between BodyMetrix™ and Indirect Calorimetry in South African Adults

Accurate assessment of resting metabolic rate (RMR) is necessary for calorie-based recommendations in diet and exercise training interventions. BodyMetrix? is an ultrasound-based device that provides an estimate of RMR based on body composition, but has not been proven valid or reliable. Therefore, we evaluated the agreement between Katch–McArdle prediction equation used by BodyMetrix?, with indirect calorimetry, Harris–Benedict, WHO, and Sabounchi prediction equations of RMR. In total, 32 men and 22 women were measured for body composition via BodyMetrix? and RMR via indirect calorimetry. All prediction equations demonstrated significantly lower RMR values (p < .001) relative to indirect calorimetry. Katch–McArdle equation strongly correlated with other prediction equations (p < .001), and had a moderate (r = .658, p < .001) correlation with indirect calorimetry. There was a tendency toward underestimation for obese individuals. Therefore, we suggest that estimates from BodyMetrix? may be used as a relative, rather than an absolute measure of RMR.     

Measuring up? The discursive construction of student subjectivities in the Global Children's Challenge™

International concern about ‘alarming’ levels of childhood obesity has seen a proliferation of interventions filtering into school physical education programmes that are designed to influence children's health practices and attitudes. This article addresses one such obesity-prevention intervention, the Global Children's Challenge?, a 50-day pedometer-monitored event, aimed at children and involving their parents and teachers. Our research problematises the effects of the GCC pedometer exercise regime. We demonstrate how the pedometer measurement imperative made available in the GCC not only enables exercise to be measured for potential health benefits but also makes available tools inextricably linked with antagonistic body relations that could propel some students into a self-monitoring world dominated by numbers. We illustrate how the emphasis on measurement allows for comparisons (dividing practices), self-surveillance and surveillance of others in the formation of particular kinds of subjectivities. This study of the discursive construction of student subjectivities in the GCC took place in one strategically chosen Australian primary school. In-depth interviews were conducted with one teacher, four Year-6 students and a parent of each child in order to produce rich contextual data. Foucauldian concepts of power, knowledge and ‘technologies of self’ underpinned the study and Gore's methodologies for analysing ‘techniques of power’ and ‘regimes of truth’ were used to explore the functioning of power and the formation of subjectivities in the GCC. Our analysis suggests a need to move away from the constraining construct of measurement in the primary physical education (PE) classroom and promote self-reflective mindful physical activity rather than telling students when, where and how to move their bodies.     

Accuracy of pacing during breaststroke swimming using a novel pacing device,the Aquapacer™

Generally, swimmers pace themselves using their own judgement and the poolside clock during swimming training, fitness testing protocols or scientific investigation. The Aquapacer? is a new pacing device that can be used to pace the swimming speed or stroke rate of the swimmer. The aims of this study were to determine if breaststroke swimmers could pace accurately during submaximal swimming using a poolside clock (Study 1) and the Aquapacer? (Study 2), at swimming speeds at, just above and just below maximal 200 m time-trial speeds (using the Aquapacer?, Study 3) and under three different race pacing conditions (using the Aquapacer?, Study 4). Between 8 and 15 male national or club standard 200 m breaststroke swimmers participated in each of the studies. The swimmers in Study 2, despite being less well trained than the swimmers in Study 1 and part of a more heterogeneous group in terms of swimming performance, repeatedly demonstrated less random error in pacing, suggesting that the Aquapacer? may be preferable to the poolside clock when swimmers are being required to pace accurately. The Aquapacer? also enabled swimmers to pace accurately at racespecific swimming speeds (until fatigue precluded them from holding pace) (Study 3), and through a change in pace at race-specific speeds (Study 4), which suggests that it may be of use in entraining racing strategies.     

Adolescents‘ Self-Efficacy to Overcome Barriers to Physical Activity Scale

This paper describes a revised measure of self-efficacy to overcome barriers to moderate and vigorous physical activity in a sample of 484 high school students in Toronto, Ontario. The students had a mean age of 15.3 years. Principal axis factoring with oblique rotation yielded five factors: self-efficacy to overcome internal, harassment, physical environment, social environment, and responsibilities barriers. Two problematic items were removed, which resulted in a 22-item measure. Subsequent analyses were conducted on responses to this shortened measure. Confirmatory factor analysis supported the five-factor model and demonstrated age- and sexinvariance. The subscales had good internal consistency reliability. Structural regressions demonstrated a strong relationship between the resulting factors and a physical activity measure (energy expenditure), showing predictive validity.