Body composition of English Premier League soccer players: Influence of playing position,international status,and ethnicity

Abstract

Body composition is a key consideration in the physical make-up of professional soccer players. The aims of the present study were to determine whether the body composition of professional soccer players varied according to playing position, international status or ethnicity, and to establish which variables best distinguished the soccer players from a reference group. Body composition was assessed using dual-energy X-ray absorptiometry in 64 male professional soccer players. Measured variables included bone mineral density and the relative amounts of lean and fat mass. Data were analysed using analysis of variance and stepwise discriminant function. The soccer players recorded better values than a reference group (n = 24) for all body composition compartments. Percent lean mass and bone mineral density were the variables best able to identify the soccer players (95.5% correctly classified). Differences in body composition were evident between goalkeepers and outfield players, but not between outfield playing positions. No differences were found on the basis of international status. The non-Caucasian players demonstrated significantly lower percent body fat (9.2 ± 2.0%) than the Caucasian players (10.7 ± 1.8%). It was concluded that body composition is important for elite soccer players, but that homogeneity between players at top professional clubs results in little variation between individuals.     

Determination of the swing technique characteristics and performance outcome relationship in golf driving for low handicap female golfers

Abstract

Previous studies on the kinematics of the golf swing have mainly focused on group analysis of male golfers of a wide ability range. In the present study, we investigated gross body kinematics using a novel method of analysis for golf research for a group of low handicap female golfers to provide an understanding of their swing mechanics in relation to performance. Data were collected for the drive swings of 16 golfers using a 12-camera three-dimensional motion capture system and a stereoscopic launch monitor. Analysis of covariance identified three covariates (increased pelvis–thorax differential at the top of the backswing, increased pelvis translation during the backswing, and a decrease in absolute backswing time) as determinants of the variance in clubhead speed (adjusted r ² = 0.965, P < 0.05). A significant correlation was found between left-hand grip strength and clubhead speed (r = 0.54, P < 0.05) and between handicap and clubhead speed (r = ?0.612, P < 0.05). Flexibility measures showed some correlation with clubhead speed; both sitting flexibility tests gave positive correlations (clockwise: r = 0.522, P < 0.05; counterclockwise: r = 0.711, P < 0.01). The results suggest that there is no common driver swing technique for optimal performance in low handicap female golfers, and therefore consideration should be given to individual swing characteristics in future studies.     

Exploring the challenges experienced by international students during work-integrated learning in Australia

This study explores the challenges experienced by international students during Work Integrated Learning (WIL) in Australia. Student participation in WIL not only enhances individual student employability but also the attractiveness of Australia as a study destination. WIL, in particular work placements, is in high demand by international students who seek to gain relevant experience in their host country and increase their chances of employment post-study. Data were gathered from employers, academics and students on the challenges faced by international students during the WIL experience and how WIL is currently being managed for the international cohort. Stakeholders identified a number of challenges which impact on student performance and the success of their WIL experience. These include cultural differences, inflated expectations, difficulties managing assessment tasks, relatively weak language skills and an imbalance in the support needed by international students in comparison to what is on offer. Stakeholder strategies to manage these challenges are discussed.     

Strategy selection for cognitive skill acquisition depends on task demands and working memory capacity

The involvement of working memory capacity (WMC) in ruled-based cognitive skill acquisition is well-established, but the duration of its involvement and its role in learning strategy selection are less certain. Participants (N = 610) learned four logic rules, their corresponding symbols, or logic gates, and the appropriate input–output combinations in three-gate circuit patterns. Participants practiced 120 repetitions of each rule (480 total gates) over the course of 10 training blocks. Memory load varied between subjects. The confluence of task demands and individual differences in WMC (N = 518) dramatically affected speed–accuracy tradeoffs and strategic use of a computerized help function. Cluster analysis revealed five distinct groups of participants based on the combination of response accuracy, latency, and help use. Some groups with moderate to high mean WMC acquired the task with predictable performance patterns. Other groups, prevalently under a memory load and with low mean WMC, failed to learn or overused help.     

Unpacking the New Deal for Young People: Promise and problems

After two years of operation on a national scale, the New Deal Welfare to Work (WtW) programme for young people aged 18-24 (New Deal for Young People, NDYP), a flagship scheme and key element in New Labour's general lifelong learning policy for post-compulsory education and training, has been extensively evaluated both by official government and independent researchers. This research is analysed within the framework of policy analyses of the key aims of the New Deal and associated lifelong learning objectives and the main findings are examined against the background of a case study of the operation of the NDYP by Coventry Employment Services. By way of a conclusion, a contrast between the (generally favourable) quantitative outcomes of WtW and the (partly unfavourable) qualitative studies is drawn in terms of short-term and long-term aims for unemployment relief and the reform of vocational education and training in the post-school sector. Suggestions for the improvement of NDYP programmes are made in the light of the key findings.     

Applied positive psychology: Improving everyday life,health, schools,work, and society

Multiple disciplines guide our practice, but none is more relevant than the wholesome approach of positive psychology. In Applied Positive Psychology: Improving Everyday Life, Health, Schools, Work, and Society (2011), the editors address four core areas: society, human development, institutional organizations, and future directions. The strength of this book lies in its comprehensive compilation of research‐based, applied, and integrated practices for improving the living, working, and social conditions of those we strive to help every day. Applied Positive Psychology: Improving Everyday Life, Health, Schools, Work, and Society (ISBN: 978‐0‐415‐87781‐7) is published by Routledge.     

Do Fourteenth Amendment considerations outweigh a potential state interest in mandating cochlear implantation for deaf children?

Currently, the decision concerning pediatric cochlear implantation for children remains a personal choice for parents to make. Economic factors, educational outcomes, and societal attitudes concerning deafness could result in an increased governmental interest in this choice. This article examines case law related to the issue of parental autonomy to determine whether the state, acting in the role of parens patriae, could use economic and social reasons to mandate the provision of cochlear implants for all eligible children. The author uses previous cases as a framework to develop an opinion on whether a constitutional protection for parents may exist.