Lesões agudas em atletas de TKD

Int J Sports Med. 2011 May 11. [Epub ahead of print]

Acute Injuries in Taekwondo.
Schlüter-Brust K, Leistenschneider P, Dargel J, Springorum HP, Eysel P, Michael JW.
Department of Orthopedic Surgery, University of Cologne, Germany.

Abstract
Although Taekwondo is becoming an increasingly popular sport, there is a lack of reliable epidemiologic data on Taekwondo injuries. To perform an epidemiologic study on the variety of types of injury in professional and amateur Taekwondo athletes and to find a relation between Taekwondo style, skill level, weight-class and warm-up routine and the occurrence of injuries, we analysed the injury data using a 7-page questionnaire from a total of 356 Taekwondo athletes who were randomly selected. Overall, we registered a total of 2 164 injuries in 356 athletes. Most traumas were contusions and sprains in the lower extremities. Professional Taekwondo athletes have an increased risk of injury in comparison to recreational athletes. Taekwondo style, weight class and tournament frequency have an influence on the athlete's injury profile. Warm-up routines were found to have a positive effect on injury rates. Overall, Taekwondo may be considered a rather benign activity, if injuries during Taekwondo tournaments can be avoided. If not, Taekwondo can result in serious musculoskeletal problems.

Vibração e desempenho no supino em atletas de judô

Int J Sports Med. 2011 May 17. [Epub ahead of print]
Effects of Different Vibration Exercises on Bench Press.
Marín PJ, Torres-Luque G, Hernández-García R, García-López D, Garatachea N.
European University Miguel de Cervantes, Laboratory of Physiology, Valladolid, Spain.

Abstract

This study was undertaken to analyze the effects of different vibration recovery strategies via feet or hands on the number of repetitions performed and on mean velocity, peak velocity and blood lactate concentration during consecutive bench-press sets. 9 elite judo athletes performed 3 sets of bench press at 60% of one-repetition maximum (1RM), leading to failure and allowing a 180 s rest period between sets. During the rest period, 1 of the 3 following procedures was performed: 150 s rest plus 30 s push-up vibration exercise (Push-up), 150 s rest plus 30 s squat vibration exercise (Squat) or 180 s only rest (Passive). Statistical analysis revealed that the Squat condition resulted in a significant increase in the number of repetitions achieved, in comparison with all other rest strategies. However, kinematic parameters and blood lactate concentration were not affected by vibration. These data suggest that a vibration stimulus applied to the feet, between sets, can result in positive improvements in upper body resistance exercise performance. Although the mechanisms are not fully understood, this positive effect of vibration could be due to an increased motor cortex excitability and voluntary drive.

Apresentações orais no SCMACS 2011

Avakian et al.
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B6F18t_8Glc7YmJiODE5NTctMjc0Ny00Mjc3LWI5ZWUtZWM2YTgxMDYzMWIw&hl=en_US&authkey=CODthbcK

Franchini and Takito
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B6F18t_8Glc7ZDczZjNlZWQtZDE0My00NTI4LWE1ZjEtMWM3MzVjODViYTg4&hl=en_US&authkey=CIqEhd4H

Santos et al.
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B6F18t_8Glc7MjMwZWIwODYtMTdiMi00YmUyLTgwM2UtYWM4NmU0ZTYzMTNm&hl=en_US&authkey=COnZsOEP

Urbinati et al.
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B6F18t_8Glc7OWZlOWRiNDQtOTgwMS00YjI4LWE3ZWQtNjBiMDdjNzhjNDZi&hl=en_US&authkey=CJbyj_sJ

Aula ministrada na Universidade de León

https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B6F18t_8Glc7OWUyYjViZGQtNjRiMy00NWIwLWE1MGItM2RlNmQ0YjQ5NWUy&hl=en_US&authkey=CImJgOMJ

Foto de apresentação no SMACS 2011

Artigo sobre estrutura temporal e desenvolvimento de ações durante a luta de MMA

Perceptual and Motor Skills: Volume 112, Issue , pp. 639-648.

doi: 10.2466/05.25.PMS.112.2.639-648

A REVIEW OF TIME-MOTION ANALYSIS AND COMBAT DEVELOPMENT IN MIXED MARTIAL ARTS MATCHES AT REGIONAL LEVEL TOURNAMENTS1

FABRÍCIO BOSCOLO DEL VECCHIO
Superior School of Physical Education Federal University of Pelotas, Brazil

SÉRGIO MASASHI HIRATA
Metrocamp-Veris Educacional, Brazil

EMERSON FRANCHINI
School of Physical Education and Sport University of São Paulo, Brazil

Summary
Mixed martial arts (MMA) have become a fast-growing worldwide expansion of martial arts competition, requiring high level of skill, physical conditioning, and strategy, and involving a synthesis of combat while standing or on the ground. This study quantified the effort-pause ratio (EP), and classified effort segments of stand-up or groundwork development to identify the number of actions performed per round in MMA matches. 52 MMA athletes participated in the study (M age = 24 yr., SD = 5; average experience in MMA = 5 yr., SD = 3). A one-way analysis of variance with repeated measurements was conducted to compare the type of action across the rounds. A chi-squared test was applied across the percentages to compare proportions of different events. Only one significant difference (p <.05) was observed among rounds: time in groundwork of low intensity was longer in the second compared to the third round. When the interval between rounds was not considered, the EP ratio (between high-intensity effort to low-intensity effort plus pauses) was 1:2 to 1:4. This ratio is between ratios typical for judo, wrestling, karate, and taekwondo and reflects the combination of ground and standup techniques. Most of the matches ended in the third round, involving high-intensity actions, predominantly executed during groundwork combat.

SCMACS 2011 - dia 1

Terminado o primeiro dia vejo que já valeu a pena ter vindo. Trabalhos muito interessantes e discussões bastante relevantes. Sem contar a possibildade de troca de ideias durante os intervalos. Há tempos não passava um dia tão proveitoso do ponto de vista acadêmico.
O trabalho cuja primeira autora é a Paula foi apresentado no segundo bloco de apresentações orais do período da tarde de ontem. Daqui a algumas horas farei a apresentação dos demais trabalhos orais, começando pelo meu, depois aquele que a Keith é a primeira autora e por último aquele que o Jonatas é o primeiro autor.
É isso, no retorno mostrarei várias coisas interessantes.