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1.
Purpose: Overuse injuries are common in sport, but complete understanding of injury risk factors remains incomplete. Although biomechanical studies frequently examine musculoskeletal injury mechanisms, human movement variability studies aim to better understand neuromotor functioning, with proposed connections between overuse injury mechanisms and changes in motor variability. Method: In a narrative review, we discuss the variability-overuse injury hypothesis, which suggests repeated load application leads to mechanical tissue breakdown and subsequent injury when exceeding the rate of physiological adaptation. Due to the multidisciplinary nature of this hypothesis, we incorporate concepts from motor control, neurophysiology, biomechanics, as well as research design and data analysis. We therefore summarize multiple perspectives while proposing theoretical relationships between movement variability and lower extremity overuse injuries. Results: Experimental data are presented and summarized from published experiments examining interactions between experimental task demands and movement variability in the context of drop landing movements, along with comparisons to previous movement variability studies. Conclusion: We provide a conceptual framework for sports medicine researchers interested in predicting and preventing sports injuries. Under performance conditions with greater task demands, we predict reduced trial-to-trial movement variability that could increase the likelihood of overuse injuries. 相似文献
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John Hutnyk 《Inter-Asia Cultural Studies》2018,19(1):129-147
This article examines a recurrent film motif across a number of South Asian films, mostly called Mela. It also offers some observations on melas, actual and allegorical, as represented in films but often seeming to exceed their containment in context so as to say more about the conviviality of life, where this is at issue, where life is at a juncture in need of resolution within the cycle of becoming. The issues of violence, loss, national identity, politics of interpretation and repetition in ideology are canvassed. While the essay is focused upon Mela films themselves, and South Asian film more broadly, it has of course been important to note work by scholars such as M. Madhava Prasad, Ashish Rajadhyaksha, Anjali Gera Roy, Tejaswini Niranjana, Gayatri Chakravorty Spivak and the help of my students, some of whom are named below. 相似文献
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With the exception of lecturing staff, research on occupational groups and cultures within the UK higher education system is relatively sparse. This paper focuses upon one specialist group, to-date under-researched but which plays a central role in contemporary higher education administration: graduate research administrators. This occupational group is of particular interest as its members administer and manage an increasing complex and key area of university life, which in many cases appears to span the putative occupational divide between 'academic' and 'administrative' work. Based upon qualitative interviews with 27 research administrators, and using some of Bourdieu's conceptual devices, the paper analyses particular kinds of informal occupational knowledge and practice, necessary in order effectively to 'do' the complex task of research administration in the pressurized environment of contemporary British higher education. 相似文献
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John Moffat 《Journal of The Franklin Institute》1865,79(5):295-298
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