Teste aeróbio específico para o karate

J Strength Cond Res. 2012 Feb 15. [Epub ahead of print]


Reliability and construct validity of the karate specific aerobic test (KSAT).

Chaabène H, Hachana Y, Franchini E, Mkaouer B, Montassar M, Chamari K.

1Research Unit, Analysis and Evaluation of factors affecting the sport performance, Higher Institute of Sports and Physical Education, Ksar said, Tunisia; 2Tunisian Research Laboratory 'Sport Performance Optimisation', National Centre of Medicine and Science in Sport, Tunisia; 3 Higher Institute of Sports and Physical Education, Manouba University, Tunis, Tunisia; 4Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil.


Abstract

The aim of this study was to examine absolute and relative reliability and external responsiveness of the Karate specific aerobic test (KSAT). This study comprised 43 male karatekas, 19 of them participated in the first study to establish test-retest reliability and 40, selected on the bases of their karate experience and level of practice, participated in the second study to identify external responsiveness of the KSAT. The latter group was divided into two categories: national level group (Gn) and regional level group (Gr). Analysis showed excellent test-retest reliability of time to exhaustion (TE), with intraclass correlation coefficient ICC(3,1) >0.90, standard error of measurement SEM <5%: (3.2%) and mean difference (bias) ± the 95% limits of agreement: -9.5±78.8 s. There was a significant difference between test-retest session in peak lactate concentration (Peak [La]) (9.12±2.59 mmol.l vs 8.05±2.67 mmol.l; p<0.05), but not in peak heart rate (HRpeak) and rating of perceived exertion (RPE) (196±9 bpm vs 194±9 bpm and 7.6±0.93 vs 7.8±1.15; p>0.05), respectively. National level karate athletes (1032±101-s) were better than regional level (841±134-s) on time to exhaustion (TE) performance during KSAT (p<0.001). Thus, KSAT provided good external responsiveness. The area under the receiver operator characteristics (ROC) curve was >0.70 (0.86; CI 95%: 0.72-0.95). Significant difference was detected on Peak [La] between national (6.09±1.78mmol.l) and regional level (8.48±2.63mmol.l) groups, but not in HRpeak (194±8 bpm vs 195±8 bpm) and RPE (7.57±1.15 vs 7.42±1.1) respectively. The result of this study indicates that KSAT provides excellent absolute and relative reliabilities. The KSAT can effectively distinguish karate athletes of different competitive levels. Thus, the KSAT may be suitable for field assessment of aerobic fitness of karate practitioners.

International Journal of Wrestling Science

Destaque para a lista das publicações envolvendo wrestling em 2011 (o autor publica essas listas desde 2005; para quem não tem tempo para buscar, já está tudo selecionado):

http://inwr-wrestling.com/wp-content/uploads/2012/02/Vol-1-Supplement-ALL.pdf

Comentários?

http://www.faperj.br/boletim_interna.phtml?obj_id=7914

Vai sair na edição de março do International Journal of Sports Nutrition and Exercise Metabolism

Methods of Body Mass Reduction by Combat Sports’ Athletes

Authors: Ciro José Brito1, 4, Aendria Fernanda Castro Martins Roas2, Igor Surian Souza Brito3, João Carlos Bouzas Marins3, Claudio Córdova4, and Emerson Franchini5 Affiliations: 1Federal University of Sergipe. 2Izabela Hendrix Methodist University. 3Federal University of Viçosa. 4Brasilia Catholic University.5University of São Paulo. Acceptance Date: November 27, 2011 Abstract: The aim of this study was to investigate the methods adopted to reduce body mass (BM) in competitive athletes from the grappling (judo, jiu-jitsu) and striker (karate and taekwondo) combat sports’ athletes in the State of Minas Gerais Brazil. An exploratory methodology was employed through descriptive research, using a standardized questionnaire with objective questions self-administered to 580 athletes (25.0±3.7 yrs, 74.5±9.7 kg and 16.4±5.1% of body fat). Regardless of the sport, 60% of the athletes reported using a method of rapid weight loss (RWL) through increased energy expenditure. Strikers tend to begin reducing BM during adolescence. Furthermore, 50% of the samples used saunas and plastic clothing, and only 26.1% received advice from a nutritionist. We conclude that a high percentage of athletes use RWL methods. In addition, a high percentage of athletes use unapproved or prohibited methods, such as diuretics, saunas and plastic clothing. The age at which combat sports’ athletes reduce BM for the first time is also worry, especially among strikers. Keywords: martial arts, weight loss, athletic performance, diuretics.

Efeitos do período competitivo sobre variáveis fisiológicas e mentais

J Sports Med Phys Fitness. 2012 Feb;52(1):1-10.

Effects of 7-weeks competitive training period on physiological and mental condition of top level judoists.

Garatachea N, Hernández-García R, Villaverde C, González-Gallego J, Torres-Luque G.

Source

Faculty of Health and Sport Science, Department of Physiotherapy and Nursing, University of Zaragoza, Huesca, Spain2 Extremeña Federation of Judo and DD.AA, Badajoz, Spain3 Faculty of Health Science, University of Granada Granada, Spain4 Institute of Biomedicine (IBIOMED), University of León, León, Spain5 Faculty of Education, University of Jaén, Jaén, Spain - nuria.garatachea@unizar.es.

Abstract

AIM:

We examined hormonal and haematological parameters and the profile of mood states (POMS) in top level judoists undertaking a 7-week competitive training period in a real contest.

METHODS:

Participants were 10 top level judoists belonging to the Spanish National Team. Training load was calculated by multiplying the training session intensity by the duration of the training session. The judoists competed in two official events on weeks 3 and 6 of the study.

RESULTS:

Urinary catecholamines increased at the end of the competitive period. Serum cortisol increased during the weeks in which judoists competed, confirming the existence of and anticipatory cortisol response to exercise; although we failed to find serum testosterone increases. Because of leukocyte values did not change, except monocytes, we speculate that the intensity of training was not sufficiently high to evoke injury to muscle tissue. Anger, tension, and fatigue increased according with training load, suggesting that the training exercise led participants into a negative psychological state.

CONCLUSION:

Findings indicate that during competitive periods, judoists suffer hormonal and mood changes according to training load and competitive events. Results support the usefulness of monitoring biological and psychological markers during season in order to adjust training loads and periods of recovery.

Cronograma de reuniões no primeiro semestre de 2012

Cronograma de reuniões do Grupo de Estudos e Pesquisas em Lutas, Artes Marciais e Modalidades Esportivas de Combate, primeiro semestre de 2012

Sala 59 da EEFE-USP (13:30-15:10)

Reuniões abertas

Dia	Tema e referências	Responsável
24/02	Pesquisa em Lutas, Artes Marciais e Modalidades Esportivas de Combate Referência básica:  Franchini, E., Vecchio, F. B. Estudos em Modalidades Esportivas de Combate: estado da arte. Revista Brasileira de Educação Física e Esporte (edição especial), v.25, p.67 - 81, 2011.	Emerson Franchini
09/03	Despedida do Prof. Dr. Michel Calmet do Brasil	Todos
23/03	Treinamento intermitente de alta intensidade em modalidades esportivas de combate Farzad, B. et al. Physiological and performance changes from the addition of a sprint interval program to wrestling training. Journal of Strength and Conditioning Research, v.25, p.2392-2399, 2011. Kim, K.C. Effects of sprint interval training on elite judoists. International Journal of Sports Medicine, v. 32, p.929-34, 2011. Ravier, G. et al. Impressive anaerobic adaptations in elite karate athletes due to few intensive intermittent sessions added to regular karate training. Scandinavian Journal of Medicine and Science in Sports, v.19, n.5, p.687-94, 2009.	Ursula Ferreira Julio
13/04	Ensaio Qualificação de Leonardo Vidal. Tema: respostas fisiológicas no Brazilian Jiu-Jitsu Referência básica: Barbas I. et al. Physiological and performance adaptations of elite Greco-Roman wrestlers during a one-day tournament. European Journal of Applied Physiology, v.111, n.7, p.1421-1436, 2011.	Leonardo Vidal Andreato
27/04	Resultados do trabalho de iniciação científica Referência básica: Haddad M, Chaouachi A, Castagna C, Wong DP, Behm DG, Chamari K. The Construct Validity of Session-RPE during an Intensive Camp in Young Male Taekwondo Athletes. International Journal of Sports Physiology and Performance, v.6, n.2, p.252-263, 2011.	Paula Avakian
11/05	MMA: analisando o fenômeno Referências básicas: Bottenburg MA. De-sportization of fighting contests - The Origins and Dynamics of No Holds Barred Events and the Theory of Sportization. International Review for Sociology of Sport, v. 41, n.3–4, p.259–282, 2006. García RS, Malcolm D. Decivilizing, civilizing or informalizing? The international development of Mixed Martial Arts. International Review for Sociology of Sport, v. 45, n.1, p.39–58, 2010. Bottenburg MA. Informalization or desportization of fighting contests? A rejoinder to Raúl Sánchez García and Dominic Malcolm. International Review for Sociology of Sport, v. 46, n.1, p.125–127, 2010.	Ursula Julio e Leonardo Vidal Andreato
18/05	Potencialização pós-ativação nas modalidades esportivas de combate: revisão de estudos e perspectivas Referências básicas: Miarka B, Del Vecchio FB, Franchini, E. Acute Effects and Postactivation Potentiation in the Special Judo Fitness Test. Journal of Strength and Conditioning Research, v.25, p.427 - 431, 2011. Tsolakis C,   Bogdanis GC, Nikolaou A,  Zacharogiannis E. Influence of type of muscle contraction and gender on postactivation potentiation of upper and lower limb explosive performance in elite fencers. Journal of Sports Science and Medicine, v.10, 577-583, 2011. Ferreira SLA, Panissa V, Miarka B, Franchini E. Postactivation potentiation: effect of various recovery intervals on bench press power performance. Journal of Strength and Conditioning Research, e-ahead of print, 2012.	Jonatas Ferreira da Silva Santos
01/06	Lutas na Educação Física Escolar: o que professores envolvidos pensam sobre a temática	Luiz Dantas
22/06	Ensaio para a qualificação de Bianca Miarka Referências básicas:  Miarka, B., Hayashida, C.R., Julio, U. F., Calmet, M., Franchini, E. Objectivity of FRAMI-Software for Judo Match Analysis. International Journal of Performance Analysis in Sport, v.11, p.254 - 266, 2011. Calmet, M., Miarka, B., Franchini, E. Modeling approaches of grasps in judo competition contests. International Journal of Performance Analysis in Sport, v.10, p.229 - 240, 2010. Miarka, B., Julio, U. F., Vecchio, F. B., Calmet, M., Franchini, E. Técnica y táctica en judo: una revisión. Revista de Artes Marciales Asiáticas, v.5, p.91 - 112, 2010.	Bianca Miarka

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