The influence of hold regularity on perceptual-motor behaviour in indoor climbing

Climbers often train on indoor climbing walls, which are modifiable to simulate features of outdoor climbing environments at different levels of difficulty. The aim of this study was to evaluate the influence of regularity of climbing holds on emergent perceptual-motor behaviours. Skilled climbers performed six repetitions of two topographically similar routes on an indoor climbing wall. One route was composed of 18 different types of hand holds (irregular route), whereas the other route had only two types of hand holds (regular route). Preview and climbing durations, as well as visual search behaviours, were recorded. Participants rated the regular route as more difficult to climb, requiring greater perceived effort to complete. The time spent previewing, and then climbing the routes, was reduced on average by 12% and 16%, respectively in the irregular route compared to the regular route. There were more fixations made when climbing the regular route (281 vs. 222 fixations per trial). It seems the climbers were more careful and thorough in their gaze behaviours with the regular route because of the additional technical demands it presented, whereas the irregular route afforded a more superficial visual exploration with use of more frequent saccades between holds. The findings suggest how irregularity in the environment is exploited by skilled climbers, apparently making the practice context easier to perceive and act in.     

Effects of evaluativevs. co-constructive interactions on learning in physics

We conducted an experimental study to assess the effects of two physics-learning situations that differed in the type of teacher-student interactions that took place: evaluative or co-constructive. As found in various studies on physics teaching and social psychology, the results showed that co-constructive interactions generated a more effective learning context for students than evaluative ones did.     

Enabling pupil participation in a study of perceptions of disengagement: methodological matters

Guidance and legislation in the UK suggest that it is becoming increasingly important to listen to the voices of pupils, to acknowledge their rights and to consult and collaborate with them in the development of personalised approaches to their education. In this article, Jackie Ravet, lecturer in inclusive practice at the University of Aberdeen, explores the methodological issues raised by a study of pupil perceptions of their disengagement in the primary classroom. She examines how an interpretative methodology was adapted to enable a group of eight- and nine-year-old primary school pupils to reflect upon their responses to learning and to express their interpretations, explanations and evaluations of their disengagement. Jackie Ravet's article details the array of interpretative methods used throughout her study with a particular focus upon a sequence of practical, activity-based interview formats designed to enable pupil communication and participation. This exposition is followed by a critique of the methodology and a discussion of its implications for research involving young children. The article closes with a call for pupils to be more effectively involved in reflecting upon the processes of participative research and in meaningful partnerships for school improvement. This article will be of interest to anyone seeking to enhance consultation and collaboration with pupils.     

Predicting volleyball serve-reception at group level

In a group-serve-reception task, how does serve-reception become effective? We addressed “who” receives/passes the ball, what task-related variables predict action mode selection and whether the action mode selected was associated with reception efficacy. In 182 serve-receptions we tracked the ball and the receivers’ heads with two video-cameras to generate 3D world-coordinates reconstructions. We defined receivers’ reception-areas based on Voronoi diagrams (VD). Our analyses of the data showed that this approach was accurate in describing “who” receives the serve in 95.05% of the times. To predict action mode selection, we used variables related to: serve kinematics, receiver’s movement and on-court positioning, the relation between receiver and his closest partner, and interactions between receiver-ball and receiver-target. Serve’s higher initial velocities together with higher maximum height, as well as smaller longitudinal distances between receiver and target increased the chances for the use of the overhand pass. Conversely, decreasing alignment of the receiver with the ball and the target increased the chances of using the underhand-lateral pass. Finally, the use of the underhand-lateral pass was associated with lower quality receptions. Behavioural variability’s relevance for serve-reception training is discussed.     

Cortical and trabecular bone analysis of professional dancers using 3D-DXA: a case–control study

Given the lack of relevant data, the aim of this study was to examine femur cortical and trabecular bone in female and male professional ballet dancers. 40 professional ballet dancers and 40 sex- and age-matched non-exercising controls volunteered. Femoral bone density was scanned by dual-energy X-ray absorptiometry (DXA) scan. A 3D-DXA software was used to analyse trabecular and cortical bone. Anthropometry, maturation (Tanner staging), menstrual parameters (age at menarche and primary amenorrhea), energy availability and nutritional analysis (3-day record) were also assessed.Compared to non-exercising participants, dancers exhibited significantly higher volumetric density for integral, cortical and trabecular bone, and thicker cortex at the femur. Ballet dancers demonstrated lower body weight compared to controls (p < 0.01). Female dancers had their menarche later than controls, and the prevalence of primary amenorrhea were significantly higher in dancers than controls (p < 0.01). Dancer’s energy availability was below the normal range (<30 kcal/kgFFM/day). Despite the presence of certain osteoporosis risk factors such as low energy availability, primary amenorrhoea and lower body weight, professional ballet dancers revealed higher bone density for both cortical and trabecular bone compartments compared to controls.     

Stage régional sur l'enseignement des langues vivantes Sydney (Australie), Janvier–Février 1957

Sans résumé     

‘But how do I teach them?’: Autism & Initial Teacher Education (ITE)

Many teachers are prepared for professional practice by attending Initial Teacher Education (ITE) courses in universities across the world. Under UK legislation, this preparation must equip teachers to address the needs of all children in mainstream classrooms, including learners on the autism spectrum – but does it? In this paper, I will critically explore this question by examining the findings of a research study focusing on a four-year ITE programme in a UK university. The research was designed using qualitative methods (online open-ended questionnaires and focus groups). The key findings were that the majority of students and tutors had some basic autism awareness, but little or no knowledge and understanding of autism teaching strategies. There was a consensus that teachers require both of these to ensure the inclusion of learners with autism in mainstream classrooms. Participants agreed there were currently insufficient inputs on autism on the ITE programme. This was related to a lack of tutor expertise, concerns about medical labelling and questions about ITE curriculum overload and priorities. Participants identified a range of ideas for improving autism education across the ITE programme which will be explored in the second phase of the study.     

The distribution of EU students and staff at UK universities: patterns and trends

The mobility of EU students and staff is threatened by Brexit, as the favourable conditions allowing for a frictionless cross-border academic learning and scientific research base are renegotiated at the highest political levels, including the pre-Brexit freedom of movement of persons and home fees for EU students. However, the UK higher education system is highly differentiated, and its hierarchical nature implies that criteria such as age, history, geographical location, economic resources, research activity, teaching quality, academic selectivity and socioeconomic student mix will have important ramifications when assessing the vulnerabilities of UK higher education institutions and the internationalisation of UK higher education should the UK leave the EU.

     

Structure and dynamics of European sports science textual contents: Analysis of ECSS abstracts (1996–2014)

Abstract

The article discusses general structure and dynamics of the sports science research content as obtained from the analysis of 21998 European College of Sport Science abstracts belonging to 12 science topics. The structural analysis showed intertwined multidisciplinary and unifying tendencies structured along horizontal (scope) and vertical (level) axes. Methodological (instrumental and mode of inquiry) integrative tendencies are dominant. Theoretical integrative tendencies are much less detectable along both horizontal and vertical axes. The dynamic analysis of written abstracts text content over the 19 years reveals the contextualizing and guiding role of thematic skeletons of each sports science topic in forming more detailed contingent research ideas and the role of the latter in stabilizing and procreating the former. This circular causality between both hierarchical levels and functioning on separate characteristic time scales is crucial for understanding how stable research traditions self-maintain and self-procreate through innovative contingencies. The structure of sports science continuously rebuilds itself through use and re-use of contingent research ideas. The thematic skeleton ensures its identity and the contingent conceptual sets its flexibility and adaptability to different research or applicative problems.