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61.
62.
English Premiership Academy knee injuries: lessons from a 5 year study   总被引:1,自引:1,他引:0  
This study addresses the epidemiology of knee injuries in adolescent males. Data were collected prospectively from 41 Premiership soccer academies over a 5 year period from July 2000 to June 2005. A total of 12,306 player seasons were registered in the U9 to the U16 age categories with a total of 1750 recordable injuries specific to the knee joint. There was a mean incidence of 0.71 (95% confidence interval ± 0.05) knee injuries per player per year, and a median of 17 (inter-quartile range 9-38) training days and 2 (inter-quartile range 1-4) matches missed per knee injury. Knee injuries were found to be most common in the 14-16 year age group. Six hundred and nine (35% of total) injuries were classed as severe resulting in more than 28 days' absence. Injuries were more likely to be sustained in a competitive or match-play environment (862 or 52%) than in training (796 or 48%), and a non-contact mechanism was implicated in 823 (55%) of recorded cases. Peaks in injury numbers were seen in early season and subsequent to the winter break. Sprain was the most common diagnosis recorded, with the medial collateral ligament affected in 23% of all knee injuries. Knee injuries are common in elite youth footballers. In this uninsured age group, it could be argued that earlier medical intervention may reduce long-term damage to the immature skeleton.  相似文献   
63.
In the present study, we examined the independent and combined effects of an inspiratory muscle warm-up and inspiratory muscle training on intermittent running to exhaustion. Twelve males were recruited to undertake four experimental trials. Two trials (Trials 1 and 2) preceded either a 4-week training period of 1 × 30 breaths twice daily at 50% (experimental group) or 15% (control group) maximal inspiratory mouth pressure (PImax). A further two trials (Trials 3 and 4) were performed after the 4 weeks. Trials 2 and 4 were preceded by a warm-up: 2 × 30 breaths at 40% PImax. Pre-training PImax and distance covered increased (P < 0.05) similarly between groups after the warm-up (~11% and ~5-7% PImax and distance covered, respectively). After training, PImax increased by 20 ± 6.1% (P < 0.01; d = 3.6) and 26.7 ± 6.3% (P < 0.01; d = 3.1) when training and warm-up were combined in the experimental group. Distance covered increased after training in the experimental group by 12 ± 4.9% (P < 0.01; d = 3.6) and 14.9 ± 4.5% (P < 0.01; d = 2.3) when training and warm-up interventions were combined. In conclusion, inspiratory muscle training and inspiratory muscle warm-up can both increase running distance independently, but the greatest increase is observed when they are combined.  相似文献   
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65.
Within the self-determination theory (Deci & Ryan, 2000) framework, research has considered the consequences of coaches' autonomy supportive and controlling behaviors on various athlete outcomes (e.g., motivation and performance). The antecedents of such behaviors, however, have received little attention. Coaches (N = 443) from a variety of sports and competitive levels completed a self-report questionnaire to assess their psychological need satisfaction, well-being and perceived interpersonal behaviors toward their athletes. Structural equation modeling demonstrated that coaches' competence and autonomy need satisfaction positively predicted their levels of psychological well-being, as indexed by positive affect and subjective vitality. In turn, coaches' psychological well-being positively predicted their perceived autonomy support toward their athletes, and negatively predicted their perceived controlling behaviors. Overall, the results highlight the importance of coaching contexts that facilitate coaches' psychological need satisfaction and well-being, thereby increasing the likelihood of adaptive coach interpersonal behavior toward athletes.  相似文献   
66.
In countries such as the UK, schools have a responsibility to prevent all forms of bullying, including those related to sexual orientation. However, relatively little is known about how schools go about this work successfully. This study aimed to identify how three secondary schools in south London, England, were addressing homophobia. Three different kinds of schools – a co-educational, boys' and girls' school – were selected, each known to have conducted work to counter homophobic bullying. In each school, interviews were conducted with staff and pupils. Work on homophobia and homophobic bullying was said by most staff respondents to be part of a general commitment to countering bullying. Pupils stated that they were keen that homophobic bullying should be tackled – and distinguished bullying from ‘cussing’, ‘taking the mick’ and ‘mucking about’. Work carried out in schools had influenced pupils to consider homophobia and its effects – although the media as well as personal and family relationships were also important in this respect. Findings are discussed with regard to ways in which schools might better align what they do with regard to pupils' own values and understandings about how best to address homophobia and bullying.  相似文献   
67.
With the advent of the ERASMUS programme a new impetus has been given to the exchange of students between countries within the European Community. Having outlined the aims and objectives of ERASMUS, the authors take as a case-study the development of links between the Universities of Birmingham and Grenoble III (Stendhal University), from the initial inter-university agreemart to the creation of an ERASMUS diploma. The problems posed by diffetences in university systems and practices in Britain and France are identified. Academic issues discussed include the relative merits of contrastive and complementay study programmes, the tailoring of course packages to the needs of specific groups of students, linguistic difficulties, assessment and validation procedures. After a brief consideration of practical arrangements, the article concludes with an evaluation of lessons which are to be learnt and of the extent to which such an initiative might be said to fulfil the ideals of the ERASMUS program.  相似文献   
68.
A survey of over 2,000 craft makers in England and Wales undertaken in 2003 forms the basis of this study. It is compared with data from a previous national survey, enabling a unique longitudinal perspective on specific trends within this sector. The career paths travelled by makers between their initial training and forming their enterprises are explored and the dynamism of the sector and its potential contribution to the UK economy are made apparent. Three themes are addressed: the initial training of the makers; the emerging pattern of late entry to the sector; and, finally, individuals' career paths in the context of lifestyles and quality of life associated with working in the crafts.  相似文献   
69.
Explaining Post-War Cinema Attendance in Great Britain   总被引:1,自引:0,他引:1  
This paper models the interaction between cinema admissions and cinema supply in response to changes in exogenous variables, chiefly competition from television viewing. The relationship is estimated empirically by applying near Vector Autoregression (VAR) techniques to a long run of British annual data from 1950 to 1997. The results indicate that sustained negative shocks to cinema demand throughout most of the period reduced the supply of screens, inducing further falls in admissions and closures until a new equilibrium was attained. More recently, the introduction of multiplex cinemas has interrupted and partially reversed this downward demand-supply spiral.  相似文献   
70.
This article discusses the formation and development of the British Columbia Open Learning Agency and summarizes the principal features of its current activities in providing open learning opportunities in the fields of adult basic education, technical‐vocational training and undergraduate degree programmes.  相似文献   
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