Análise do Hopkins sobre o ECSS

http://sportsci.org/2013/ECSS.htm

Fico imaginando se ele fosse a alguns eventos que eu já fui o que ele escreveria : )

Estrutura temporal, RPE e respostas fisiológicas durante lutas de karate: comparação entre vencedores e vencidos

Int J Sports Physiol Perform. 2013 Jul 22. [Epub ahead of print]

Time-Motion Analysis, Physiological and Rate of Perceived Exertion Responses to Karate Official Combats: Is There a Difference Between Winners and Defeated Karatekas?

Chaabène H, Franchini E, Miarka B, Selmi MA, Mkaouer B, Chamari K.

Source

Research Unit, Analysis and Evaluation of factors affecting the sport performance, Higher Institute of Sports and Physical Education, Ksar said, Tunisia.

Abstract

Purpose: The aim of this study was to measure and to compare physiological and time-motion variables during karate fighting's and to assess eventual differences between winners and defeated elite karatekas in an ecologically valid environment. Methods: Fourteen elite male karatekas who regularly participated in national and international events took part in a national-level competition. Results: There were no significant differences between winners and defeated karatekas regarding all the studied variables. Karatekas used more upper-limbs (76.19%) than lower-limbs' techniques (23.80%). The kisami-zuki represented the most frequent technique with 29.1% of all used techniques. The duration of each fighting activity ranged from <1 to 5 s, with 83.8±12.0% of the actions lasting less than 2-s. Karatekas executed 17±7 high-intensity actions per-fight, which corresponded to ~6 high-intensity actions per minute. Action-to-rest ratio was about 1:1.5 and high-intensity action-to-rest ratio was ~1:10. The mean blood lactate responses at 3-min post-combat (Lapost) elicited during karate fighting was 11.18±2.21 mmol.L-1 (difference between Lapre and Lapost = 10.01±1.81 mmol.L-1). Mean heart rate was 177±14 bpm (91±5 % of HRpeak). Karatekas spent 65% of the time exercising at HR>90% of the individual HRpeak. Conclusion: karatekas predominantly use upper-limbs' karate techniques. Karate's nature is intermittent with fighting activities representing ~6% of total combat's duration, with ~84% of actions lasting less than 2-s, and with approximately ~21-s mean time interval in-between. Kumite combats induced high blood lactate concentration and near maximal cardiovascular strain. Other key-success factors should be investigated to properly discriminate winners and defeated athletes.

http://www.ncbi.nlm.nih.gov/pubmed/23881174

Diferenças quanto à participação esportiva em 50 sociedades

Cross-Cultural Research

Volume 47, Issue 3, August 2013, Pages 268-309

Sex Differences in Sports Across 50 Societies

Deaner, R.O.^a , Smith, B.A.^b  

^a  Department of Psychology, Grand Valley State University, 1 Campus Drive, Allendale, MI 49401, United States
^b  University of Texas at El Paso, El Paso, TX, United States 

View references (110)

Abstract

Sports have been frequently explored in cross-cultural studies, yet scant attention has been paid to female participation. Here we coded the occurrence of sports and related activities for males and females in the societies comprising the Human Relations Area Files (HRAF) probability sample. We then tested several predictions derived from evolutionary theory. As predicted, in all 50 societies with documented sports, there were more male sports than female sports; hunting and combat sports were almost exclusively male activities; and the sex difference in sports was greater in patriarchal than in nonpatriarchal societies. These results show that a robust sex difference in direct physical competition co-occurs with meaningful variation in its expression.

Festa Medieval de Laroque, França

Barraca com as explicações sobre as armas e proteções utilizadas nos confrontos da Idade Média (foto 1) e torneio de espada entre os cavaleiros (foto 2). Mesmo com a proteção e seis árbitros alguns se machucaram um pouco.

Variação das respostas fisiológicas em 1 ano de treino de MMA

http://article.sciencepublishinggroup.com/pdf/10.11648.j.ajss.20130102.11.pdf

Impacto das novas regras nas pontuações e penalidades do Campeonato Europeu de Judô

European Judo Championships: impact of the new rule changes on points and penalties

Franchini, Emerson; Takito, Monica Yuri; Calmet, Michel

International Journal of Performance Analysis in Sport, Volume 13, Number 2, August 2013 , pp. 474-479(6)

Abstract:

In 2013 the International Judo Federation started to test new rules to judo competitions with the objective of make judo more attractive for the general public and to promote which has been denominated “positive judo“, i.e., a more combative style. The aim of the present investigation was to compare two consecutive European Judo Championships (2012 and 2013, i.e., before and after the rule changes, respectively) in terms of scores and penalties. Statistics involved chi-square, analysis for linear trends in proportions and odds-ratio (OR), using 5% as significance level. The rules changes resulted in the increase of penalties and in the decrease of waza-ari (males, χ²=8.76, P=0.003, OR=0.55; females, χ²=3.79, P=0.050, OR=0.61) and yuko (males, χ²=38.93, P<0.001, OR=0.31; females, χ²=6.84, P=0.009, OR=0.56) scores for both males and females, while increasing ippon only for males (χ²=5.03, P=0.025). The total number of shido also increased for both groups (males, χ²=14.21, P<0.001, OR=1.53; females, χ²=6.63, P=0.010, OR=1.43), while the prevalence of hansoku-make increased only for males (χ²=5.78, P=0.016, OR=8.43). Thus, the rules change did not achieve the goal established of increasing scores and decreasing penalties.

http://www.ingentaconnect.com/content/uwic/ujpa/2013/00000013/00000002/art00017



http://judo.hanches.free.fr/contenu-menu-haut/points-penalites.htm

Ações técnicas no kickboxing

Technical and tactical analysis of high level kickboxing matches

Ouergui, Ibrahim; Hssin, Nizar; Franchini, Emerson; Gmada, Nabil; Bouhlel, Ezzedine

International Journal of Performance Analysis in Sport, Volume 13, Number 2, August 2013 , pp. 294-309(16)

Abstract:

The purpose of the study was to analyze the technical and tactical aspects of high level Kickboxing matches. A total of 45 matches (135 rounds) from the World Championship 2009 and 2011 of male kickboxers were analyzed using notational analysis system to determine the technical and tactical aspects (i.e., offensive, defensive techniques and combined actions) considering combat rounds, weight divisions and match outcome. Kickboxers were engaged in offensive actions more than defensive ones (P<0.001). The most used techniques were straight punches, roundhouse kick, block/parry and foot defense (P<0.001), while punch combinations were the most used combination type. Winners used more offensive (i.e., hook punches), defensive techniques (i.e., foot defense and clinch) and punch combinations than losers. Significant interation effect of weight category, match outcome and rounds were found on offensive and defensive techniques. The activity in international kickboxing competitions was modulated by weight categories with a significant effect of combat stage. Winners applied more offensives and defensives techniques than defeated athletes. Our findings suggest that to win a match, athletes should be motivated by developing the most used offensives techniques and coaches should structure specific training to maintain a high rate of techniques 'delivery during the combat.