Doenças infecciosas em esportes competitivos

J Athl Train. 2012;47(5):516-8. doi: 10.4085/1062-6050-47.5.02.

Infectious disease outbreaks in competitive sports, 2005-2010.

Collins CJ, O'Connell B.

Source

Central Pathology Laboratory, Trinity College Dublin, St. James's Dublin, 8, Ireland. collinc6@tcd.ie.

Abstract

CONTEXT:

Old, evolving, and new infectious agents continually threaten the participation of competitors in sports.

OBJECTIVE:

To provide an update of the medical literature on infectious disease outbreaks in sport for the last 5 years (May 2005-November 2010). Main Outcome Measure(s): A total of 21 outbreaks or clusters were identified.

RESULTS:

Methicillin-resistant Staphylococcus aureus (n = 7, 33%; mainly community acquired) and tinea (trichophytosis: n = 6, 29%) were the most common pathogens responsible for outbreaks. Skin and soft tissue was the most common site of infection (n = 15, 71%).

CONCLUSIONS:

The majority of outbreaks reported occurred in close-contact sports, mainly combat sports (ie, wrestling, judo) and American football. Twelve outbreaks (57%) involved high school or collegiate competitors. Common community outbreak pathogens, such as influenza virus and norovirus, have received little attention.

Antropometria de atletas de TKD

Differences in body components and the significance of rehabilitation for taekwondo athletes compared to nonathletes

Won-Deok Lee, Lim-Kyu Lee, Bokyung Kim and Junghwan Kim

TOXICOLOGY AND ENVIRONMENTAL HEALTH SCIENCES

Volume 4, Number 3 (2012), 203-208, DOI: 10.1007/s13530-012-0137-2

Abstract

It is well known that the difference in individual characteristics showed between somatotypes and body components. However, few studies have investigated differences in body components and gender in taekwondo athletes compared to nonathletes. The present study is to analyze the body components and skin-fold thickness of taekwondo athletes compared to nonathletes, and to contribute to current research on rehabilitation and its application and significance. The fat body mass and impedance were significantly decreased in the taekwondo athlete compared with the nonathletic groups. The same values of the men group showed significantly greater decreases than those of the women in both the nonathlete and taekwondo groups. But, the lean body mass, basal metabolic rate (BMR), and total body water were significantly increased in the taekwondo athlete compared with the nonathletic groups. In terms of gender, the values of the men in both the nonathlete and taekwondo groups showed significantly greater increases than those of the women of both groups. However, there were no significant differences between the men and women skin-fold thickness data for all participants. Therefore, these results, in part, found that there was a difference in body components between taekwondo athletes and nonathletes. Also, when applying physical stimuli such as electrotherapy, ultrasound, and heat, the body components of each patient for healthy life need to be carefully considered.

Final de semana de chuva em SP, acabei vendo TV...

Se eu fosse político ou dirigente esportivo, teria vergonha de ver essas matérias...Os atletas continuam lutando (em diversas esferas) e por muito tempo. Quando eles perdem, a crítica é dura. Quando eles vencem, aparecem inúmeras pessoas que "ajudaram"...

http://g1.globo.com/videos/espirito-santo/t/todos-os-videos/v/lar-doce-lar-entrega-casa-de-touro-moreno-no-es/2188405/

http://tvg.globo.com/programas/caldeirao-do-huck/lar-doce-lar/episodio/touro-moreno-e-filhos-medalhistas-olimpicos-yamaguchi-e-esquiva-falcao-cumprem-prova-e-levam-nova-casa-com-um-ringue-de-boxe-para-treinamento.html

http://paniconaband.band.com.br/videos.asp?page=2

Raiva entre atletas adolescentes

Iran J Pediatr. 2012 Mar;22(1):9-14.

Anger in Adolescent Boy Athletes: a Comparison among Judo, Karate, Swimming and Non Athletes.

Ziaee V, Lotfian S, Amini H, Mansournia MA, Memari AH.

Source

Sports Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran ; Department of Pediatrics, Tehran University of Medical Sciences, Tehran, Iran.

Abstract

OBJECTIVE:

Karate and judo are originally Japanese martial arts which may have different influences on adolescents' behavior. This study was conducted to examine the total anger rate and its subscale-reactive anger, instrumental anger, and anger control-rates in young karateka and judoka.

METHODS:

A cross-sectional study was carried out in 11 to 19-year old boys. Adolescents included in the study were judoka (n=70), karateka (n=66), swimmers (n=59), and non athletes (n=96). One stage cluster sampling method was used to select judoka, karateka, and swimmers from sport clubs in Tehran. Students of governmental schools at the same area were chosen as the non-athletes group. The "Adolescent Anger Rating Scale" questionnaire was utilized to assess the anger rate.

FINDINGS:

The mean age of participants was 12.90(±2.06) years. The total anger rates were 45.40 (±5.61) in judoka, 41.53(±5.63) in karateka, 41.19(±5.33) in swimmers, and 45.44 (±8.58) in non athletes. In total anger scale karateka and swimmers had a significantly lower score compared to judoka and non athletes. In instrumental anger subscale the difference was significant just between karateka and non athletes. In reactive anger subscale judoka showed higher scores than swimmers. In anger control subscale the difference was significant between judoka and swimmers and also judoka and karateka. The difference of anger control between karateka and non athletes was significant.

CONCLUSION:

The findings of this study propose a difference in the anger rate between judoka and karateka. In contrary to the results of previous studies, judo training may have no influence on anger control, while karate training could be beneficial.

Experimento interessante: efeito do barulho sobre as decisões da arbitragem em lutas de Muay Thai com lutadores da casa e visitantes

Front Psychol. 2012;3:346. Epub 2012 Sep 14.

The Impact of Crowd Noise on Officiating in Muay Thai: Achieving External Validity in an Experimental Setting.

Myers T, Balmer N.

Source

Newman University College Birmingham, UK.

Abstract

Numerous factors have been proposed to explain the home advantage in sport. Several authors have suggested that a partisan home crowd enhances home advantage and that this is at least in part a consequence of their influence on officiating. However, while experimental studies examining this phenomenon have high levels of internal validity (since only the "crowd noise" intervention is allowed to vary), they suffer from a lack of external validity, with decision-making in a laboratory setting typically bearing little resemblance to decision-making in live sports settings. Conversely, observational and quasi-experimental studies with high levels of external validity suffer from low levels of internal validity as countless factors besides crowd noise vary. The present study provides a unique opportunity to address these criticisms, by conducting a controlled experiment on the impact of crowd noise on officiating in a live tournament setting. Seventeen qualified judges officiated on thirty Thai boxing bouts in a live international tournament setting featuring "home" and "away" boxers. In each bout, judges were randomized into a "noise" (live sound) or "no crowd noise" (noise-canceling headphones and white noise) condition, resulting in 59 judgments in the "no crowd noise" and 61 in the "crowd noise" condition. The results provide the first experimental evidence of the impact of live crowd noise on officials in sport. A cross-classified statistical model indicated that crowd noise had a statistically significant impact, equating to just over half a point per bout (in the context of five round bouts with the "10-point must" scoring system shared with professional boxing). The practical significance of the findings, their implications for officiating and for the future conduct of crowd noise studies are discussed.

Campeonato Paulista de Kendô

Dica do Guilherme Oliveira:

*** Campeonato Paulista de Kendo 2012 ***
Dia 14 de Outubro de 2012, no Parque Esportivo dos
Trabalhadores.
Endereço: Rua Canuto de Abreu, s/n°, Tatuapé – SP
Data e horário: dia 14 de Outubro de 2012, a partir das 8h

Soco no karate: diferenças entre homens e mulheres

Percept Mot Skills. 2012 Aug;115(1):228-40.

Sex differences in electromechanical delay during a punch movement.

Ferreira MA, Vencesbrito AM.

Source

Sport Sciences School of Rio Maior, Polytechnic Institute of Santarém, Rio Maior, Portugal. marioarf@gmail.com

Abstract

This study assessed how sex of participant is related to electromechanical delay during a karate punch. Ten male (M age = 25.00 yr., SD = 3.02; M height=174.9 cm, SD=6.3; M weight = 71.13 kg, SD=9.35) and 8 female (M age = 27.4 yr., SD = 6.0; M height = 161.4 cm, SD = 5.1; M weight = 59.09 kg, SD = 7.00) karate athletes performed 10 ballistic punches to a target as hard as possible. Kinematic analysis and surface electromyographic (EMG) activity of the upper-limb muscles were recorded. Men had a significantly shorter electromechanical delay in the anterior portion of the deltoid, showing a larger effectiveness in the transfer of the contractile force for the beginning of movement. Agonist and antagonist relationships show intermuscular coordination differences between the sexes. Results revealed the existence of a different neuromuscular coordination pattern of motor control between men and women, although a similar kinematic pattern was expected due to karate practice.