Grupo credenciado pela EEFE-USP em 2006. Participantes com (1) publicações de livros e artigos em periódicos nacionais e internacionais; (2) atuação na iniciação às modalidades ou com a preparação de atletas de diversos níveis. No 1o semestre de 2013, o foco central do grupo está direcionado para a conclusão de alguns projetos iniciados em 2012, bem como com o início da coleta de dados de alguns projetos de pesquisa.
Quem sou eu
- Emerson Franchini
- São Paulo, São Paulo, Brazil
- Professor da EEFE-USP; Praticante e Pesquisador de Judô; Preparador físico de atletas de modalidades esportivas de combate.
Arquivo do blog
- ► 2012 (168)
- ► 2011 (203)
terça-feira, 27 de março de 2012
segunda-feira, 26 de março de 2012
Contribuição energética no kata
Eur J Appl Physiol. 2012 Mar 23. [Epub ahead of print]
Energetics of basic Karate Kata.
Institut für Angewandte Trainingswissenschaft, Marschnerstrasse 29, 04109, Leipzig, Germany, bussweiler@iat.uni-leipzig.de.
Abstract
Knowledge about energy requirements during exercises seems necessary to develop training concepts in combat sport Karate. It is a commonly held view that the anaerobic lactic energy metabolism plays a key role, but this assumption could not be confirmed so far. The metabolic cost and fractional energy supply of basic Karate Kata (Heian Nidan, Shotokan style) with duration of about 30 s were analyzed. Six male Karateka [mean ± SD (age 29 ± 8 years; height 177 ± 5 cm, body mass 75 ± 9 kg)] with different training experience (advanced athletes, experts, elite athletes) were examined while performing one time and two time continuously the sport-specific movements. During Kata performance oxygen uptake was measured with a portable spirometric device, blood lactate concentrations were examined before and after testing and fractional energy supply was calculated. The results have shown that on average 52 % of the energy supply for one Heian Nidan came from anaerobic alactic metabolism, 25 % from anaerobic lactic and 23 % from aerobic metabolism. For two sequentially executed Heian Nidan and thus nearly doubling the duration, the calculated percentages were 33, 25 and 42 %. Total energy demand for one Kata and two Kata was approximately 61 and 99 kJ, respectively. Despite measured blood lactate concentrations up to 8.1 mmol l(-1), which might suggest a dominance of lactic energy supply, a lactic fraction of only 17-31 % during these relatively short and intense sequences could be found. A heavy use of lactic energy metabolism had to be rejected.quarta-feira, 21 de março de 2012
Nós, na Science; quem diria...
Um inglês bem mais ou menos, uma ideia razoavelmente antiga que sempre encontrou pouco apoio e alguém, de repente, a considera interessante...Gostei da surpresa : )
http://news.sciencemag.org/sciencenow/2012/03/the-science-of-judo.html
Curtam, pq outra matéria dessa deve demorar : )
http://news.sciencemag.org/sciencenow/2012/03/the-science-of-judo.html
Curtam, pq outra matéria dessa deve demorar : )
Campeonato Sul-Americano de Kung Fu em Tatui
Divulgação da Juliana Lara:
http://www.kungfuchampionship.com/brazil/
http://www.kungfuchampionship.com/brazil/
segunda-feira, 19 de março de 2012
quinta-feira, 8 de março de 2012
terça-feira, 6 de março de 2012
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