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31.
Mehdi Kordi Nicos Haralabidis Matthew Huby Paul R. Barratt Glyn Howatson Jon Stephen Wheat 《Journal of sports sciences》2019,37(1):36-41
Gross thigh volume is a key anthropometric variable to predict sport performance and health. Currently, it is either estimated by using the frustum method, which is prone to high inter-and intra-observer error, or using medical imaging, which is expensive and time consuming. Depth camera 3D-imaging systems offer a cheap alternative to measure thigh volume but no between-session reliability or comparison to medical imaging has been made. This experiment established between-session reliability and examined agreement with magnetic resonance imaging (MRI). Forty-eight male cyclists had their thigh volume measured by the depth camera system on two occasions to establish between-session reliability. A subset of 32 participants also had lower body MRIs, through which agreement between the depth camera system and MRI was established. The results showed low between-session variability (CV = 1.7%; Absolute Typical Error = 112 cm3) when measuring thigh volume using the depth camera system. The depth camera systematically measured gross thigh volume 32.6cm3 lower than MRI. These results suggest that depth camera 3D-imaging systems are reliable tools for measuring thigh volume and show good agreement with MRI scanners, providing a cheap and time-saving alternative to medical imaging analysis. 相似文献
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Daniel J. Owens Craig Twist James N. Cobley Glyn Howatson 《European Journal of Sport Science》2019,19(1):71-85
AbstractExercise-induced muscle damage (EIMD) is characterized by symptoms that present both immediately and for up to 14 days after the initial exercise bout. The main consequence of EIMD for the athlete is the loss of skeletal muscle function and soreness. As such, numerous nutrients and functional foods have been examined for their potential to ameliorate the effects of EIMD and accelerate recovery, which is the purpose of many nutritional strategies for the athlete. However, the trade-off between recovery and adaptation is rarely considered. For example, many nutritional interventions described in this review target oxidative stress and inflammation, both thought to contribute to EIMD but are also crucial for the recovery and adaptation process. This calls into question whether long term administration of supplements and functional foods used to target EIMD is indeed best practice. This rapidly growing area of sports nutrition will benefit from careful consideration of the potential hormetic effect of long term use of nutritional aids that ameliorate muscle damage. This review provides a concise overview of what EIMD is, its causes and consequences and critically evaluates potential nutritional strategies to ameliorate EIMD. We present a pragmatic practical summary that can be adopted by practitioners and direct future research, with the purpose of pushing the field to better consider the fine balance between recovery and adaptation and the potential that nutritional interventions have in modulating this balance. 相似文献
33.
Glyn J. Thomas 《Journal of Adventure Education & Outdoor Learning》2013,13(4):287-300
ABSTRACTFacilitating groups in outdoor education can sometimes be very challenging, and self-doubt and the fear of facilitating inadequately add to difficulties that facilitators must sometimes manage. In this paper, I will explore some of the ways by which facilitators contribute to the difficulties they experience and, furthermore, to explore some solutions. Negative self-talk can sabotage our best intentions as facilitators, by reducing the levels of free attention that are needed to facilitate well. I draw on the findings of a naturalistic inquiry conducted with 7 facilitator educators and 104 graduates of facilitator education programmes. Data collected through semi-structured interviews, participant observation and qualitative surveys were analysed using the constant comparison method. . Based on my research findings, I contend that outdoor education programmes do not need perfect facilitators. Rather, facilitators who can be authentic, self-aware and fully present for their groups will improve outdoor education programs. 相似文献
34.
Sarah P. McGeown Rhona S. Johnston Jo Walker Kathryn Howatson Ann Stockburn Paul Dufton 《Educational research; a review for teachers and all concerned with progress in education》2013,55(4):389-402
Background: While there is a considerable body of research exploring the relationship between older primary school children’s reading attitudes, confidence and attainment, there is a noticeable lack of research with younger children. Furthermore, there is relatively little research exploring the extent to which children’s reading attitudes, confidence and attainment are related to their enjoyment of learning to read.Purpose: To understand the relationship between young children’s reading attitudes, reading confidence, enjoyment of learning to read and reading attainment.Sample: Two hundred and three children (103 boys) with an average age of 6 years and 9 months (.32 years standard deviation) participated in this study. Children were from 11 primary schools in England, located within a wide range of socio-economic neighbourhoods.Design and methods: All children completed questionnaires examining their attitudes to reading, reading confidence (using Progress in International Reading Literacy Study items) and enjoyment of learning to read. Children also completed an assessment of word reading. All assessments were administered individually.Results: Children’s attitudes to reading, reading confidence and enjoyment of learning to read correlated with their word reading skill; however, only reading attitudes and reading confidence predicted variance in reading success. With regard to gender differences, girls reported more positive reading attitudes than boys, even after controlling for differences in reading skill.Conclusions: Results highlight that the relationship between children’s reading skills and the affective aspects of learning to read develops from a young age. Therefore, methods of reading instruction need to foster affective aspects of reading, in addition to developing cognitive skills to best support young children’s reading development. 相似文献
35.
Situational factors as well as individual differences are assumed to play an important role in perceptions of stress. One factor that may affect an elite athlete's perception of stress may be his or her perceived motivational climate. To examine the relative importance of dispositional and situational factors on the perceptions of distress (i.e. negative stress), we assessed goal orientations, perception of motivational climate and sources of distress among Norwegian participants at the 1994 Winter Olympic Games in Lillehammer. Perception of a performance climate was associated with cognitive sources of distress, the coach, and team aspects as a source of distress. Furthermore, a performance climate was a signi cant predictor of high total distress. The athletes with lower perceptions of ability perceived the coach to be more a source of distress than athletes with a high perception of ability. A perception of a mastery climate was negatively associated with the coach as a source of distress. These findings indicate that, to reduce the perception of distress, the coach should focus on creating a mastery climate for elite athletes. 相似文献
36.
Applications of Achievement Goal Theory to Physical Education: Implications for Enhancing Motivation
Given the widespread concern regarding the motivation of students, the paucity of research in education on motivation enhancement is surprising (Arnes, 1992a; Maehr & Midgley, 1991). Recent research from an achievement goal perspective, however, has begun to address this issue. The purpose of this paper is to provide a review of the basic tenets of achievement goal theory and to analyze the research that has been conducted in physical education that focuses extensively on instructional practices and strategies that may improve the quality of school-age children's motivation. The paper will conclude by commenting on the potential utility of adopting an achievement goal approach to understanding and enhancing motivation in the physical education context. 相似文献
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38.
Laura McDonald Hooks Catherine Scott-Little Betty Jo Marshall Glyn Brown 《Early Childhood Education Journal》2006,33(6):399-403
South Carolina recently implemented a new initiative to improve the quality of pre-kindergarten and kindergarten classrooms in primary schools. This article describes the initiative and examines evidence that such an effort can have a positive effect on early childhood program quality. Data from both classroom observations using the ECERS-R scale, and from teacher surveys, are used to examine the effectiveness of the quality improvement effort. Results indicate that training and support coupled with accountability requirements can facilitate positive changes within classrooms. Examples of positive changes teachers report they made as the result of this process are included, along with changes in ECERS-R quality rating scores. 相似文献
39.
Social media has become a key medium for discussion and dissemination of news stories, fuelled by the low barrier to entry and the ease of interaction. News stories may be propagated through these networks either by official news organisation accounts, by individual journalists or by members of the public, through link sharing, endorsing or commenting. This preliminary research aims to show how computational analysis of large-scale data-sets allows us to investigate the means by which news stories are spread through social media, and how the conversation around them is shaped by journalists and news organisations. Through the capture of more than 11 million tweets relating to 2303 Twitter accounts connected to journalism and news organisations, we are able to analyse the conversation within and around journalism, examining who spreads information about news articles and who interacts in the discussion around them. Capturing the tweets of news organisations and journalists and the replies and retweets of these micro-blogs allows us to build a rich picture of interaction around news media. 相似文献
40.
The prevalence of ‘life planning’: evidence from UK graduates 总被引：2，自引：1，他引：1
At a time when ‘personal development planning’ is being rolled out across the UK higher education sector, this paper explores young adults’ inclinations to plan for the future in relation to work, relationships and other aspects of life. Although Giddens has emphasised the prevalence of strategic life planning (or the ‘colonisation of the future’) in all strata of contemporary society, du Bois Reymond has argued that there are important differences by social class, with young people from more privileged backgrounds more likely than their peers to engage in such life‐planning activities. This paper draws on interviews with 90 young adults (in their mid‐20s) to question some of these assumptions about relationships between social location and propensity to plan for the future. It shows how, within this sample at least, there was a strong association between having had a privileged ‘learning career’ (such as attending a high‐status university and identifying as an ‘academic high flier’) and a disinclination to form detailed plans for the future. In part, this appeared to be related to a strong sense of ontological security and the confidence to resist what Giddens terms ‘an increasingly dominant temporal outlook’. 相似文献