Energy absorbed by electronic body protectors from kicks in a taekwondo competition
F.B. Del Vecchio, E Franchini, A.H.M. Del Vecchio, W Pieter
Biol Sport 2011; 28 (1):
Objective: Although some scientific information on electronic body protectors in taekwondo is available, no research has been done to assess the impact of kicks in a competitive situation. The purpose of this study, then, was to assess the energy absorbed by these protectors from kicks performed in an actual taekwondo competition. Methods: Subjects consisted of junior (14-17 years) and senior (≥18 years) male taekwondo-in, who participated in an open tournament. Data on the energy imparted by valid kicks in Joules (J) were collected from a public visual electronic monitor. Results: Energy was higher for the seniors: 264.31 ± 56.63 J versus 224.38 ± 48.23 J for the juniors (eta2 = 0.121). The seniors scored lower in percent impact but the effect was trivial: 123.46 ± 24.77% versus 136.70 ± 26.33% (eta2 = 0.087). Conclusions: The difference between senior and junior taekwondo-in in absolute energy generated was small, while the difference in relative energy impact was trivial in favour of the junior taekwondo athletes.
http://biolsport.com/fulltxt.php?ICID=935878
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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)
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terça-feira, 22 de março de 2011
Discurso de formatura, como paraninfo da XVI Turma de Bacharéis em Educação Física da EEFE-USP
Sem dúvida, a atividade acadêmica que tive mais motivação e prazer em realizar neste primeiro trimestre...
https://docs.google.com/document/d/1Tx4licUJr3ShluwVv_P855mx18Jy_bVRN3Bguvu1mhY/edit?hl=en&authkey=CJXd5oUD
quinta-feira, 17 de março de 2011
Lesões em boxeadores
Am J Prev Med. 2011 Apr;40(4):462-7.
Boxing injuries presenting to u.s. Emergency departments, 1990-2008.
Potter MR, Snyder AJ, Smith GA.
Center for Injury Research and Policy, the Ohio State University College of Medicine, Columbus, Ohio; The Research Institute at Nationwide Children's Hospital, the Ohio State University College of Medicine, Columbus, Ohio.
Abstract
BACKGROUND: Boxing injuries can have serious consequences.
PURPOSE: To examine the epidemiology of boxing injuries in the U.S. with attention to head injuries and children.
METHODS: National estimates of boxing injuries were calculated using data from the National Electronic Injury Surveillance System. Injury rates per 1000 participants for the year 2003 were calculated using boxing participation data. Data analysis was conducted in 2009-2010.
RESULTS: An estimated 165,602 individuals (95% CI=134891, 196313) sustained boxing injuries that resulted in a visit to a U.S. hospital emergency department from 1990 through 2008. An average of 8716 (95% CI=7078, 10354) injuries occurred annually, and there was a statistically significant increase in the annual number of injuries during the 19-year study period (slope=610, p<0.001). The rate of injury was 12.7 per 1000 participants. Those injured were predominately male (90.9%). The most common diagnosis was fracture (27.5%), and the most common body regions injured were the hand (33.0%) and head and neck (22.5%). Punching bag-related injuries accounted for 36.8% of boxing injuries. The percentage of injuries that were concussions/closed head injuries in the group aged 12-17 years (8.9%) was similar to that in the group aged 18-24 years (8.1%) and the group aged 25-34 years (8.5%).
CONCLUSIONS: These findings, based on a nationally representative sample, indicate that injuries related to boxing are increasing in number. Increased efforts are needed to prevent boxing injuries.
Boxing injuries presenting to u.s. Emergency departments, 1990-2008.
Potter MR, Snyder AJ, Smith GA.
Center for Injury Research and Policy, the Ohio State University College of Medicine, Columbus, Ohio; The Research Institute at Nationwide Children's Hospital, the Ohio State University College of Medicine, Columbus, Ohio.
Abstract
BACKGROUND: Boxing injuries can have serious consequences.
PURPOSE: To examine the epidemiology of boxing injuries in the U.S. with attention to head injuries and children.
METHODS: National estimates of boxing injuries were calculated using data from the National Electronic Injury Surveillance System. Injury rates per 1000 participants for the year 2003 were calculated using boxing participation data. Data analysis was conducted in 2009-2010.
RESULTS: An estimated 165,602 individuals (95% CI=134891, 196313) sustained boxing injuries that resulted in a visit to a U.S. hospital emergency department from 1990 through 2008. An average of 8716 (95% CI=7078, 10354) injuries occurred annually, and there was a statistically significant increase in the annual number of injuries during the 19-year study period (slope=610, p<0.001). The rate of injury was 12.7 per 1000 participants. Those injured were predominately male (90.9%). The most common diagnosis was fracture (27.5%), and the most common body regions injured were the hand (33.0%) and head and neck (22.5%). Punching bag-related injuries accounted for 36.8% of boxing injuries. The percentage of injuries that were concussions/closed head injuries in the group aged 12-17 years (8.9%) was similar to that in the group aged 18-24 years (8.1%) and the group aged 25-34 years (8.5%).
CONCLUSIONS: These findings, based on a nationally representative sample, indicate that injuries related to boxing are increasing in number. Increased efforts are needed to prevent boxing injuries.
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