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Henry Brown Brian Dawson Martyn J. Binnie Hugh Pinnington Marc Sim Tristan D. Clemons 《European Journal of Sport Science》2017,17(6):741-747
This study compared markers of muscle damage and inflammation elevated by a matched-intensity interval running session on soft sand and grass surfaces. In a counterbalanced, repeated-measures and crossover design, 10 well-trained female athletes completed 2 interval-based running sessions 1 week apart on either a grass or a sand surface. Exercise heart rate (HR) was fixed at 83–88% of HR maximum. Venous blood samples were collected pre-, post- and 24?h post-exercise, and analysed for myoglobin (Mb) and C-reactive protein (CRP). Perceptual ratings of exertion (RPE) and muscle soreness (DOMS) were recorded immediately post- and 24?h post-exercise. A significant time effect showed that Mb increased from pre- to post-exercise on grass (p?=?.008) but not on sand (p?=?.611). Furthermore, there was a greater relative increase in Mb on grass compared with that on sand (p?=?.026). No differences in CRP were reported between surfaces (p?>?.05). The HR, RPE and DOMS scores were not significantly different between conditions (p > .05). These results suggest that in response to a matched-intensity exercise bout, markers of post-exercise muscle damage may be reduced by running on softer ground surfaces. Such training strategy may be used to minimize musculoskeletal strain while still incurring an equivalent cardiovascular training stimulus. 相似文献
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The teacher readaloud is an instructional tool established in its ability to foster children's language and literacy development. Increasing cultural and linguistic diversity and changing standards place pressure on teachers to provide literacy and language instruction relevant to children's everyday lives and learning. This article presents a framework for conducting culturally and linguistically relevant readalouds within two essential components, talk and text, in terms of developing cultural competence, maintaining high academic expectations, and fostering a critical stance. Particular attention is given to the interactive nature of these readalouds and how they can be used to promote children's active co-construction of textually-based meaning. 相似文献
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Henry T. Ingle 《Educational Media International》2013,50(2):79-82
Abstract The article looks at the organization and work of Computer Pals Across the World, and the views on its future by its American President and Australian National Director. It looks briefly at some projects and at some future projects all of which will be of interest to educational technologists. Further information can be obtained from the CPAW Virtual Secretariat ‐ dboehm@onr.com on the Internet Abstract français: Le sujet de cet article est 1'organisation et la fonction de ‘Computer Pals Across the World’ et il présent les idées de son President Americain et son Directeur National Australian. Il considère en resumé quelques projets d'avenir qui seront très intréssants pour les technologistes éducatives. On peut obtenir d'autres renseignements du CPAW Virtual Secretariat ‐ sur l'Internet 相似文献