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Maturity-associated variation in sport-specific skills of youth soccer players aged 13-15 years 总被引:1,自引:1,他引:0
Malina RM Cumming SP Kontos AP Eisenmann JC Ribeiro B Aroso J 《Journal of sports sciences》2005,23(5):515-522
The aim of this study was to estimate the contribution of experience, body size and maturity status to variation in sport-specific skills of adolescent soccer players. The participants were 69 players aged 13.2-15.1 years from three clubs that competed in the highest division for their age group. Height and body mass were measured and stage of pubic hair development was assessed at clinical examination. Years of experience in football was obtained at interview. Six football skill tests were administered: ball control with the body, ball control with the head, dribbling with a pass, dribbling speed, shooting accuracy and passing accuracy. Multiple linear regression analysis was used to estimate the relative contributions of age, stage of sexual maturity, height, body mass and years of formal training in soccer to the six skill tests. Age, experience, body size and stage of puberty contributed significantly but in different combinations to the variance in four of the six skill tests: dribbling with a pass (21%; age, stage of maturity), ball control with the head (14%; stage of maturity, height, body height x body mass interaction), ball control with the body (13%; stage of maturity, years of training) and shooting accuracy (8%; stage of maturity, height; borderline significance, P = 0.06). There were no significant predictors for the tests of dribbling speed and passing accuracy. In conclusion, age, experience, body size and stage of puberty contributed relatively little to variation in performance in four of the six soccer-specific skill tests in adolescent footballers aged 13-15 years. 相似文献
184.
Few works serve as solid a framework for the field of health sciences librarianship or provide as many insights and detailed knowledge as Introduction to Reference Sources in the Health Sciences. Now in its fourth edition, the book's editors and contributors represent an impressive range of experience, expertise, and subject knowledge appreciated by practicing librarians in a variety of settings and by students of health sciences librarianship. Jo Anne Boorkman, Jeffrey T. Huber, and Fred W. Roper answered a series of questions about the latest edition of this seminal work, and offered opinions about reference works, services, and librarians. 相似文献
185.
PURPOSE: To develop and evaluate a programme of information skills training for social-care practitioners and health-care librarians. SETTING: Two one-day training courses run separately for 13 social-care practitioners and 10 health-care librarians in the Trent geographic region within Northern England. METHODOLOGY: Qualitative and quantitative feedback collected through questionnaires supplemented by participant observation. RESULTS: While generally feedback was favourable, the courses were overly ambitious. More training sessions of shorter duration would offer participants opportunities to practise and use the skills they have acquired. Social-care practitioners responded more positively to skills associated with appraising qualitative research than with randomised controlled trials. Librarians appreciated the opportunity to learn about unfamiliar social-care resources. Both practitioners and health-care librarians reported that they acquired skills to support evidence-based social care as a result of the training intervention. DISCUSSION/CONCLUSION: Involvement of a multi-disciplinary team and support from a social-care information provider maximized the impact of this experimental training intervention. 相似文献
186.
João Pedro da Ponte Hélia Oliveira José Manuel Varandas 《Journal of Mathematics Teacher Education》2002,5(2):93-115
This paper describes the workundertaken in a course in communication andinformation technology in a pre-service programfor secondary school mathematics teachers. Thiscourse aimed to help pre-service teachersdevelop a positive attitude regarding ICT anduse it confidently. It focused on theexploration of educational software and of theInternet's potential as a means of research andproduction of web sites. We discuss how thepre-service mathematics teachers evaluate theirwork concerning their commitment, difficultiesthey found, learning they identified, andpersonal relationship. We also analyse theeffects of the course on the development oftheir professional knowledge and identity. 相似文献
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188.
Mark Taylor Yvonne Turnbull Jo Bleasdale Hulya Francis Henry Forsyth 《Support for Learning》2016,31(4):367-384
Intended UK government changes to the Disabled Students’ Allowance will have a significant impact on the support that UK universities provide for students with disabilities. In this article we examine the types of transformation that may be needed to support for university students with disabilities, from a socio‐technical perspective. The research reported in this article involved a year‐long case study in a UK university. The potential changes required to support for students with disabilities within the university studied, to cater for the proposed UK government changes to the Disabled Students’ Allowance, include: providing non‐medical helpers through external agencies; developing a dyslexia screening process; providing enhanced library services, including access to printers and scanners and assistance with assistive software; providing laptops with assistive software; making assistive software available in a limited form in computing laboratories; and more co‐ordinated special examination provision. 相似文献
189.
Ruth Gwernan‐Jones Darren A. Moore Ruth Garside Michelle Richardson Jo Thompson‐Coon Morwenna Rogers Paul Cooper Ken Stein Tamsin Ford 《British Journal of Special Education》2015,42(3):279-300
Educational policy and the school effectiveness movement often involve rhetoric about the benefit of parent involvement in schools, but high‐quality relationships between parents and teachers are not always straightforwardly achieved, and this may be particularly true in the case of parents of children presenting with academic problems and/or social, emotional and behavioural difficulties. A systematic review of qualitative research was conducted to explore the school‐related experiences of parents of pupils diagnosed with attention deficit hyperactivity disorder (ADHD). Six studies reported in seven papers met the inclusion criteria. High‐quality parent–teacher relationships were found to be the exception, with mothers feeling silenced and criticised. Findings show commonalities with wider research about parents, but identify additional grounds for conflict resulting from parental blame for pupils' disruptive behaviour, and the ambivalent nature of the concept of ADHD. 相似文献
190.
Duarte Araújo Keith Davids Ana Diniz Luis Rocha João Coelho Santos Gonçalo Dias 《European Journal of Sport Science》2015,15(3):195-202
AbstractEcological dynamics of decision-making in the sport of sailing exemplifies emergent, conditionally coupled, co-adaptive behaviours. In this study, observation of the coupling dynamics of paired boats during competitive sailing showed that decision-making can be modelled as a self-sustained, co-adapting system of informationally coupled oscillators (boats). Bytracing the spatial–temporal displacements of the boats, time series analyses (autocorrelations, periodograms and running correlations) revealed that trajectories of match racing boats are coupled more than 88% of the time during a pre-start race, via continuous, competing co-adaptions between boats. Results showed that both the continuously selected trajectories of the sailors (12 years of age) and their categorical starting point locations were examples of emergent decisions. In this dynamical conception of decision-making behaviours, strategic positioning (categorical) and continuous displacement of a boat over the course in match-race sailing emerged as a function of interacting task, personal and environmental constraints. Results suggest how key interacting constraints could be manipulated in practice to enhance sailors' perceptual attunement to them in competition. 相似文献