The runaway weight gain train: too many accelerators, not enough brakes

Obesity seems to be perpetuated by a series of vicious cycles, which, in combination with increasingly obesogenic environments, accelerate weight gain and represent a major challenge for weight management

Live high: train low increases muscle buffer capacity and submaximal cycling efficiency

This study investigated whether hypoxic exposure increased muscle buffer capacity (βm) and mechanical efficiency during exercise in male athletes. A control (CON, n=7) and a live high:train low group (LHTL, n=6) trained at near sea level (600 m), with the LHTL group sleeping for 23 nights in simulated moderate altitude (3000 m). Whole body oxygen consumption (V˙O₂) was measured under normoxia before, during and after 23 nights of sleeping in hypoxia, during cycle ergometry comprising 4×4-min submaximal stages, 2-min at 5.6 ± 0.4 W kg^–1, and 2-min 'all-out' to determine total work and V˙O_2peak. A vastus lateralis muscle biopsy was taken at rest and after a standardized 2-min 5.6 ± 0.4 W kg^–1 bout, before and after LHTL, and analysed for βm and metabolites. After LHTL, βm was increased (18%, P < 0.05). Although work was maintained, V˙O_2peak fell after LHTL (7%, P < 0.05). Submaximal V˙O₂ was reduced (4.4%, P < 0.05) and efficiency improved (0.8%, P < 0.05) after LHTL probably because of a shift in fuel utilization. This is the first study to show that hypoxic exposure, per se, increases muscle buffer capacity. Further, reduced V˙O₂ during normoxic exercise after LHTL suggests that improved exercise efficiency is a fundamental adaptation to LHTL.

A study of train group operation multi-agent model oriented RITS

In this paper, aiming at describing interrelationships and communication mechanisms among agents based on a multi-agent framework of Railway Intelligent Transportation System (RITS), we construct the model about stations and trains in the system, which is called Agent-Oriented G-Net Train Group Operation Model (AGNTOM). The framework degrades the complexity of computation and makes the distribution of simulation system easy in design. The simulated experiments prove that the model provides an effective approach for dealing with communication problems in the system.

Train without strain : health and amateur athletes

An exercise in historical sociology, this paper investigates the association between training and health made by amateur athletes between about 1860 and WWI. It examines the idea that while exercise benefited a person’s health and well-being, excessive exertion caused potentially life-threatening ‘strain’. The paper sets out the interpretation of contemporary scientific knowledge about the body–which the author terms the ‘physiology of strain’–that underpinned the advice given to those undergoing a training program for amateur competition. The point is made that the imputed effects of exercise on health were deduced from this scientific knowledge; it did not derive from bio-medical investigations specifically addressing these issues. Amateur athletes included people drawn from the professionally educated elite and medical practitioners figured significantly among them. Using insights from Bourdieu and Foucault, it is argued that their social power and professional connections served to legitimate their interpretation of the physiological effects of exercise (denying the value of the training practices of working class professional athletes) and cemented the physiology of strain as a ‘factual’ statement about exercise and health until well into the twentieth century. The data for the paper comes from training manuals, medical journals and other contemporary publications.

Changing teacher professional learning : transitioning from train - the trainer to participatory action research

Diffusion-adoption professional learning models which position teachers ascompliant technicians of policy and practices are limited in their long term effects on teacher professionalism. In contrast, co-researching models of professional learning hold the potential to engage teachers and researchers in explorations of mutual concern which impact on professionalism and contribute to development of both theory and practice.

This article describes professional learning within the context of an Australian state department of education during a period of reform. The contextual influences and design of a collaborative, film-driven participatory action research design which explored teacher learning and application of multiliteracies theory are explored. A spiral of cycles of action research incorporated engagentent with multiliteracies theory and collaborative planning; filming of teacher classroom 'action' and reflective interviews; collaborative observation of and reflection on the resultant filmic artefacts.

The filmic artefacts offered rich multimodal examples of teaching practices,
incorporatíng visual, audio, gestural and spatial classroom information, far beyond the purely linguistic recounts and descriptions which characterise many professional development workshops. Incorporation of collaborative filmic research techniques enabled multimodal observation of teaching practices across a number of sites, with observation unrestricted by temporal or physical parameters.

Train the trainer model : implications for health professionals and farm family health in Australia

Australia is a large country with 60% of land used for agricultural production. Its interior is sparsely populated, with higher morbidity and mortality recorded in rural areas, particularly farmers, farm families, and agricultural workers. Rural health professionals in addressing health education gaps of farming groups have reported using behavioralist approaches. These approaches in isolation have been criticized as disempowering for participants who are identified as passive learners or 'empty vessels.' A major challenge in rural health practice is to develop more inclusive and innovative models in building improved health outcomes. The Sustainable Farm Families Train the Trainer (SFFTTT) model is a 5-day program developed by Western District Health Service designed to enhance practice among health professionals working with farm families in Australia. This innovative model of addressing farmer health asks health professionals to understand the context of the farm family and encourages them to value the experience and existing knowledge of the farmer, the family and the farm business. The SFFTTT program has engaged with health agencies, community, government, and industry groups across Australia and over 120 rural nurses have been trained since 2005. These trainers have successfully delivered programs to 1000 farm families, with high participant completion, positive evaluation, and improved health indicators. Rural professionals report changes in how they approach health education, clinical practice, and promotion with farm families and agricultural industries. This paper highlights the success of SFFTTT as an effective tool in enhancing primary health practice in rural and remote settings. The program is benefiting not only drought ravaged farmers but assisting rural nurses, health agencies, and health boards to engage with farm families at a level not identified previously. Furthermore, nurses and health professionals are now embracing a more 'farmer-centered model of care.'

Helping others or a rewarding career? Investigating student motivations to train as social workers in England

• Summary: Understanding why people want to be social workers is important both for developing social work education and for the profession as a whole. This article presents evidence about the motivations of students enrolled on social work degree programmes in England and draws on data from 3000 responses of three successive intakes of students responding to six online surveys and 26 focus group interviews involving 168 students from nine different social work programmes in six case study sites. The article locates these data in the context of earlier studies of social workers’ motivations, the changing policy context and the changes introduced by the new degree.

• Findings: Similar to previous studies, the current analysis shows that altruistic motivations dominated, but students were also influenced by career issues and the day-to-day aspects of social work. The data highlight continuities with the former qualification in social work in the UK (the DipSW) and provide evidence that the introduction of the social work degree has not dramatically changed the underlying motivations of social work students.

• Applications: Understanding student motivations is important in terms of recruitment to social work qualifying programmes and subsequent retention within the profession. Social work educators and employers need to pay attention to the consequences of mismatches between motivations and expectations about what professional practice involves.

Dance interrogations 2013 (in the red train)

A new performance work in the series titled "Dance Interrogations" which explores and responds to a specific site and a moving audience through dance, spoken word, improvisation and projected screendance imagery.