Prevalence of poor sleep quality,sleepiness and obstructive sleep apnoea risk factors in athletes

Purpose: Despite the perceived importance of sleep for athletes, little is known regarding athlete sleep quality, their prevalence of daytime sleepiness or risk factors for obstructive sleep apnoea (OSA) such as snoring and witnessed apnoeic episodes. The purpose of the present study was to characterise normative sleep quality among highly trained team sport athletes.

Methodology:175 elite or highly trained rugby sevens, rugby union and cricket athletes completed the Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Score (ESS) and Quality of Life questionnaires and an OSA risk factor screen.

Results: On average, athletes reported 7.9?±?1.3?h of sleep per night. The average PSQI score was 5.9?±?2.6, and 50% of athletes were found to be poor sleepers (PSQI?>?5). Daytime sleepiness was prevalent throughout the population (average global score of 8.5) and clinically significant (ESS score of ≥10) in 28% of athletes. OSA may be an important clinical consideration within athletic populations, as a considerable number of athletes (38%) defined themselves as snorers and 8% reported having a witnessed apnoeic episode. The relationship between self-rated sleep quality and actual PSQI score was strong (Pearson correlation of 0.4?±?0.1, 90% confidence limits).

Conclusion: These findings suggest that this cohort of team sport athletes suffer a preponderance of poor sleep quality, with associated high levels of daytime sleepiness. Athletes should receive education about how to improve sleep wake schedules, extend total sleep time and improve sleep quality.     

Assistance and Accountability in Externally Managed Schools: The Case of Edison Schools,Inc.

Edison Schools, Inc., is the largest and most visible among a growing number of Education Management Organizations that have entered into contracts to manage public schools, including both conventional and charter schools. Edison's approach to managing schools is comprehensive, and it distinguishes itself from most other school improvement strategies by simultaneously addressing both the resources and assistance provided to schools and the accountability systems under which school staff operate. In this article we explore the ways in which the assistance and resources provided by Edison (including diverse professional development opportunities, materials, technology, and other tools), as well as accountability mechanisms (such as monitoring and rewards), have translated into principal and teacher actions, and the factors that facilitated or constrained educators' efforts to implement the Edison design and improve teaching and learning. Drawing on data gathered from extensive interviews, observations, and document reviews collected during a four-year comprehensive study of Edison schools, we demonstrate how Edison intends to promote not only educators' capacity but also their motivation and opportunity to deliver high-quality instruction. We examine variation that occurs across schools as teachers and principals respond to these system-level efforts. In addition, we identify several important predictors of variation in implementation, including the strength of instructional leadership provided by the principal and the presence or absence of district-imposed constraints such as union contract rules.     

On the Relevance of Research Findings in Cognitive Neuroscience to Educational Practice

In their target article, Byrnes and Fox (1998) argue that many of the recent findings from the field of cognitive neuroscience have particular importance for education. In our commentary, we lend support to their contention by reporting on some of our work that has potential relevance to the proposed interface between cognitive neuroscience and education. Specifically, we discuss the findings from several studies investigating the neuropsychology of intellectual giftedness, and sex differences in the brain, each of which suggest a unique functional organization that differentiates gifted from average ability adolescents, as well as males from females. We further propose that the translation of cognitive neuroscience findings into specialized classroom instructional methods which capitalize on the plasticity of the brain, as well as the apparent individual differences in its functional organization, may be the most significant challenge facing those in the front-lines of educational practice.     

Independence and Prescription in Learning: Researching the Paradox of Advanced GNVQs

This article outlines the context in which General National Vocational Qualifications (GNVQs) have been developed with particular reference to the independent learning dimension of their principles and practice. It provides an overview of the problems associated with the GNVQ approach from the literature and from a study by the authors of twelve post-16 institutions in the process of implementing Advanced GNVQ programmes. It analyses the dimensions of independent learning and argues that GNVQs provide a hybrid learner experience in which autonomy in the organisation of the individual learning process is mediated by a heavily prescribed GNVQ framework. The article concludes by locating this paradox in four central dilemmas characterising post-16 curricular policy in the UK.     

Are assessment environments gendered? An analysis of the learning responses of male and female students to different assessment environments

There is considerable variation between male and female Bachelor degree performance at Oxford and Cambridge (Oxbridge) where male students attain more First and Third Class degrees and female students attain more Second Class degrees. Various hypotheses have been put forward to explain this phenomenon including the possibility that the distinctive Oxbridge assessment environment, very different from those at both pre‐ and post‐92 universities, might account for the difference. Data from the Assessment Experience Questionnaire (AEQ; Oxbridge, pre‐ and post‐92 universities, one science, one humanities and one applied social science subject from each) were analysed to determine gendered perceptions of the assessment environment. Significant gender differences were found on five AEQ scales (Quantity of effort, Coverage of syllabus, Quantity and quality of feedback, Use of feedback and Appropriate assessment) but there was no significant interaction between gender and university. Consequently, there were few clues in students' responses to confirm that the Oxbridge assessment environment explains gendered differences in degree performance.     

Kuala Lumpur,July 2005

Abstract

This paper is a study of the impact of the Thai ‘Sixties’ on present day Thai politics, especially that of the ‘Peoples Movement’. In doing so, the study concentrates on looking at the influence of both political ideas and movements and the role of some important political actors from this period. Internationally, the Sixties Movement was characterised by a general rise in the struggle of oppressed groups on a global scale. Central to this struggle was the role of students and a new generation of activists in labour and peasant organisations. This took the form of movements against racism, sexual oppression and especially imperialism. Activists from this period are now to be found playing important roles in political systems throughout the world. However, their present day role is often in contradiction to their original beliefs during the Sixties. In Thailand, the ‘Sixties’ movement has helped to shape both the policies of the present Thai Rak Thai government and the nature of the Peoples Movement. Any understanding of the present Thai political scene has to include an examination of the mass‐movements that continue to struggle for democracy and social justice, together with the nature of various ruling class factions. Thai Rak Thai grew out of a need to deal with the effects of the 1997 Economic Crisis. Its Populist policies reflect a need to balance conflicting class interests in order to buy social peace. Many of the activists within Thai Rak Thai and those within the social movements are people of the October Generation who cut their teeth during the Thai Sixties. Their political beliefs and strategies reflect the events of the last 30 years in different ways. The Thai Sixties will continue to influence Thai politics and society in the years ahead.     

Changes in mechanical properties of sprinting during repeated sprint in elite rugby sevens athletes

This study aimed to analyse fatigue-induced changes in mechanical sprinting properties during a specific repeated-sprint test in elite rugby sevens athletes. Twenty elite rugby sevens players performed ten 40?m sprints on a 30?s cycle with participant’s running back and forth in a marked lane. Radar was used to assess maximal overground sprint performance over each 40?m. Macroscopic mechanical properties (maximal horizontal force (F₀), maximal horizontal power (P_max), maximal ratio of horizontal force (RF_peak), decrease in the ratio of horizontal-to-total force (D_RF), total force and maximal sprinting velocity (v₀)) were drawn from horizontal force velocity relationships, using a validated method applied to the speed–time data. Fatigue-induced changes were analysed comparing the first sprint to an average of 2^nd-4^th, 5^th-7^th and 8^th-10^th. Repeated-sprint ability (RSA) testing induced substantial changes in the maximal velocity component, with a decrease (–15%) in v₀ (effect size (ES)?=?–2.46 to –4.98), and to a lower extent (–5.9%) in the maximal force component F₀ (ES?=?–0.59). D_RF moderately decreased (14%; ES=–0.76–1.11), and RF_peak largely decreased in the later sprints (ES?=?–0.32 to –1.27). Fatigue observed in this RSA test appeared to have a greater effect on the technical ability to produce horizontal force at high velocities, likely due to an alteration in the ability to maintain horizontally oriented force application when velocity increases rather than during the initial acceleration phase, but also the overall force production capacity. The ability to maintain forward-oriented force at high velocities is of central importance for identifying fatigue and monitoring load.