J Strength Cond Res. 2011 Apr 14. [Epub ahead of print]
Influences of Weight Loss on Monocytes and T-Cell Subpopulations in Male Judo Athletes.
Shimizu K, Aizawa K, Suzuki N, Masuchi K, Okada H, Akimoto T, Mesaki N, Kono I, Akama T.
Source1Faculty of Sport Sciences, Waseda University, Saitama, Japan; 2Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan; 3Laboratory of Regenerative Medical Engineering, Center for Disease Biology and Integrative Medicine Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; 4Japan Institute of Sports Sciences, Tokyo, Japan; and 5Faculty of Community Health Care, Teikyo Heisei University, Chiba, Japan.
Abstract
Shimizu, K, Aizawa, K, Suzuki, N, Masuchi, K, Okada, H, Akimoto, T, Mesaki, N, and Akama, T. Influences of weight loss on monocytes and T-cell subpopulations in male judo athletes. J Strength Cond Res 25(X): 000-000, 2011-The purpose of this study was to examine weight loss effects on immune function in judo athletes. Six elite male Japanese judo athletes (20.3 ± 0.4 years) were enrolled in this study. They completed usual weight loss programs during 2 weeks preceding an actual competition. Subjects noted the appearance of upper-respiratory tract infection (URTI) symptoms during the study period. Blood samples were obtained at 40 (baseline period: BL) and 3 (weight loss period: WL) days before and 1 day after the competition (AC). The CD3, CD4, CD8, CD56CD3, CD28CD4, CD28CD8, and Toll-like-receptor-4 (TLR-4) CD14 cells were counted by using flow cytometer analysis. The 6 subjects reported 1 headache, 3 runny nose conditions, and 1 coughing instance during the WL. The CD3, CD4, CD8, and CD28CD4 cell counts were significantly lower at WL than at BL (p ≤ 0.05); they reverted to the baseline value at AC. The TLR-4CD14 cells were significantly fewer at WL (p ≤ 0.05); they remained fewer than they had been at BL, even at AC. These results suggest that 2 weeks of weight loss before a competition can impair cell-mediated immune function and induce high susceptibility to URTI in judo athletes. Coaches, support staff, and athletes should monitor athletes' weight loss, hydration status, appearance of URTI symptoms, and immunocompetence such as lymphocytes and monocytes to prevent the physical condition from becoming worse.
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)
quarta-feira, 27 de abril de 2011
terça-feira, 26 de abril de 2011
Pouco menos de um ano para os Jogos Olímpicos: momento oportuno para o surgimento dos especialistas em esportes de combate
Gente que nunca pisou no tatame, nunca trabalhou com atletas de esportes de combate e nunca investigou nada com o tema aparecerá como especialista. Os atletas que não foram lembrados por esse pessoal nos três anos anteriores terão "total suporte" no próximo (por módicas quantias, é claro, rs). Seria interessante se houvesse um questionário básico sobre as modalidades (desses de concurso que aparecem nas mídias; nada sofisticado) para testar os "especialistas". O que ia ter de gente associando bandal com judô, ô-guruma com taekwondo, pegada na perna na luta greco-romana, chave-de-braço na luta livre, katana na esgrima, não ia ser brincadeira...Bom, pelo menos no Wii tem boxe (mas quantos rounds mesmo têm o boxe olímpico????). Saudações não especializadas...
segunda-feira, 25 de abril de 2011
Material apresentado na Fitness Brasil 2011
Esporte de Combate
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B6F18t_8Glc7MTlmMGNiN2YtMzU0ZC00MjgzLTliYTgtYzEwOWYyZTU3Zjcw&hl=en&authkey=CLS56pwB
Fisiologia do Exercício Intermitente de Alta Intensidade
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B6F18t_8Glc7M2E3MTA0OTQtZTc1ZS00YjMxLTlhMzYtZjViOTQ4OGFkZDQ5&hl=en&authkey=CILcp7IC
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B6F18t_8Glc7MTlmMGNiN2YtMzU0ZC00MjgzLTliYTgtYzEwOWYyZTU3Zjcw&hl=en&authkey=CLS56pwB
Fisiologia do Exercício Intermitente de Alta Intensidade
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B6F18t_8Glc7M2E3MTA0OTQtZTc1ZS00YjMxLTlhMzYtZjViOTQ4OGFkZDQ5&hl=en&authkey=CILcp7IC
terça-feira, 19 de abril de 2011
segunda-feira, 18 de abril de 2011
Lesão na orelha durante o MMA
Vejam o link e as fotos que o Fabrício enviou:
http://fabricioboscolo.wordpress.com/2011/04/17/lesao-de-orelha-no-mixed-martial-arts-max-fight-viii/
http://fabricioboscolo.wordpress.com/2011/04/17/lesao-de-orelha-no-mixed-martial-arts-max-fight-viii/
terça-feira, 12 de abril de 2011
Lesões em atletas de luta olímpica
Am J Chin Med. 2011;39(2):233-41.
Episodes of injuries and frequent usage of traditional chinese medicine for taiwanese elite wrestling athletes.
Lin ZP, Chen YH, Chia F, Wu HJ, Lan LW, Lin JG.
Department of Holistic Wellness, MingDao University, Taiwan.
Abstract
Wrestling normally places extreme demands on the body and thus may cause various kinds of injuries. An in-depth understanding of the episodes of injured sites, types, timings, and treatment modalities would help participants be aware of wrestling-related injury occurrences so as to develop effective preventive measures. Therefore, this study aims to investigate the gender-specific injuries among elite wrestling athletes. Subjects were selected from the 2009 Taiwanese National Wrestling Sport Championship. Participants were adolescent wrestling athletes, ages 16-18, who must have received at least one bronze medal at national level tournaments in 2008. A total of 118 respondents, 96 males and 22 females, completed and returned the questionnaire in which demographic data and information about the types, sites, and timings of injuries suffered and treatment modalities adopted were elicited. The data were analyzed with independent t-tests. The questionnaire results revealed a significantly higher injury rate for males than for females. The top three injured sites for males were waist (11.1%), ankle joint (10.1%) and finger (9.6%); while for females were ankle joint (13.6%), knee (12.5%) and waist (11.3%). Contusions were the most frequent type of injury: for males (73.5%) and for females (70.6%); followed by tendon inflammation for males (10.7%) and accumulated injuries for females (15.2%). During training and matching periods, the frequency of injuries for males (69.0%) is lower than that for females (81.8%). Traditional Chinese medicine (TCM) with acupuncture and moxibustion was the most common treatment modalities used for males (51.8%) and for females (68.0%); followed by orthopedics: for males (29.5%) and for females (18.0%). The present study contributed as the first effort to reveal the potency of using TCM with acupuncture and moxibustion in wrestling competitions. To prevent possible brain and body injuries in wrestling, safety education, skills and rules, and scoring systems may require further revision. Increased training of wrestling health professionals and advanced research and development of auxiliary training devices and protective equipment for wrestling athletes are also recommended.
http://www.worldscinet.com/ajcm/39/preserved-docs/3902/S0192415X11008774.pdf
Episodes of injuries and frequent usage of traditional chinese medicine for taiwanese elite wrestling athletes.
Lin ZP, Chen YH, Chia F, Wu HJ, Lan LW, Lin JG.
Department of Holistic Wellness, MingDao University, Taiwan.
Abstract
Wrestling normally places extreme demands on the body and thus may cause various kinds of injuries. An in-depth understanding of the episodes of injured sites, types, timings, and treatment modalities would help participants be aware of wrestling-related injury occurrences so as to develop effective preventive measures. Therefore, this study aims to investigate the gender-specific injuries among elite wrestling athletes. Subjects were selected from the 2009 Taiwanese National Wrestling Sport Championship. Participants were adolescent wrestling athletes, ages 16-18, who must have received at least one bronze medal at national level tournaments in 2008. A total of 118 respondents, 96 males and 22 females, completed and returned the questionnaire in which demographic data and information about the types, sites, and timings of injuries suffered and treatment modalities adopted were elicited. The data were analyzed with independent t-tests. The questionnaire results revealed a significantly higher injury rate for males than for females. The top three injured sites for males were waist (11.1%), ankle joint (10.1%) and finger (9.6%); while for females were ankle joint (13.6%), knee (12.5%) and waist (11.3%). Contusions were the most frequent type of injury: for males (73.5%) and for females (70.6%); followed by tendon inflammation for males (10.7%) and accumulated injuries for females (15.2%). During training and matching periods, the frequency of injuries for males (69.0%) is lower than that for females (81.8%). Traditional Chinese medicine (TCM) with acupuncture and moxibustion was the most common treatment modalities used for males (51.8%) and for females (68.0%); followed by orthopedics: for males (29.5%) and for females (18.0%). The present study contributed as the first effort to reveal the potency of using TCM with acupuncture and moxibustion in wrestling competitions. To prevent possible brain and body injuries in wrestling, safety education, skills and rules, and scoring systems may require further revision. Increased training of wrestling health professionals and advanced research and development of auxiliary training devices and protective equipment for wrestling athletes are also recommended.
http://www.worldscinet.com/ajcm/39/preserved-docs/3902/S0192415X11008774.pdf
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