Effect of a Fast-skin 'body' suit on drag during front crawl swimming     

Toussaint HM  Truijens M  Elzinga MJ  van de Ven A  de Best H  Snabel B  de Groot G 《Sports biomechanics / International Society of Biomechanics in Sports》2002,1(1):1-10

The effect on drag of a Speedo Fast-skin suit compared to a conventional suit was studied in 13 subjects (6 males, 7 females) swimming at different velocities between 1.0 and 2.0 m.s-1. The active drag force was directly measured during front crawl swimming using a system of underwater push-off pads instrumented with a force transducer (MAD system). For a range of swimming speeds (1.1, 1.3, 1.5 and 1.7 m.s-1), drag values were estimated. On a group level, a statistically non-significant drag reduction effect of 2% was observed for the Fast-skin suit (p = 0.31). Therefore, the 7.5% reduction in drag claimed by the swimwear manufacturer was not corroborated.  相似文献   

EDUCATION AS PRACTICAL INTERSUBJECTIVITY: TOWARDS A CRITICAL-PRAGMATIC UNDERSTANDING OF EDUCATION     

Gert J.J. Biesta 《Educational theory》1994,44(3):299-317

  相似文献   

Is team confidence the key to success? The reciprocal relation between collective efficacy,team outcome confidence,and perceptions of team performance during soccer games     

Katrien Fransen  Steven Decroos  Norbert Vanbeselaere  Gert Vande Broek  Bert De Cuyper  Jari Vanroy 《Journal of sports sciences》2015,33(3):219-231

  相似文献   

Between the nation and the globe: education for global mindedness in Finland     

Vanessa de Oliveira Andreotti  Gert Biesta  Cash Ahenakew 《Globalisation, Societies & Education》2015,13(2):246-259

This article explores some of the tensions at the interface of nationalist and global orientations in ideals of global mindedness and global citizenship looking specifically at the Finnish context. We engage with discussions related to the social–political and historical context of national identity in Finland and outline the conceptual framework of an educational initiative related to the development of global mindedness through experiences of international mobility and partnerships. This conceptual outline presents a set of theoretical distinctions through which we seek to challenge humanist and universalist approaches to the question of (the formation of) global mindedness by arguing that the issue is neither about cognition or understanding nor about empathy and relationships but ultimately has to do with modes of existence and exposure. Similar to discussions in other small states, the historical trajectory in Finland illustrates how the encounter between the nation and the globe poses particular challenges for education as it runs the risk of reverting to ethnocentric rather than globally minded forms of national identity building. We argue that this risk cannot be addressed with the promotion of a mere understanding of or mere empathy for the other as an educational or political antidote but rather requires an existential approach.  相似文献