Pesquisar este blog

http://grupodestudoslutas.blogspot.com

Seguidores

Quem sou eu

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

sexta-feira, 15 de junho de 2012

Resumo de artigo sobre avaliação psicológica e fisiológica de atletas de TKD


Int J Sports Physiol Perform. 2012 Jun 13. [Epub ahead of print]

Physiological vs Psychological Evaluation in Taekwondo Elite Athletes.

Source

Department of Human Movement and Sport Sciences, University of Rome "Foro Italico", Rome, Italy.

Abstract

PURPOSE:

To anticipate outstanding athletic outcomes the selection process of elite athletes simultaneously considers psycho-physiological and technical parameters. This study aimed to investigate whether Selected and Not Selected athletes for the Italian National taekwondo team could be discriminated by means of sport-specific performances, and psycho-physiological responses to training.

METHODS:

Five established Italian National athletes and 20 elite Italian taekwondo black belt athletes (9 females, 16 males; age: 23.0±3.1yrs; body mass: 67.0±12.1kg) participated in this study. To update the Italian National team roster, the 20 elite athletes participated in a 1-week selection camp (7 training sessions). Selected athletes (n=10) joined Established National athletes during the following 3-week National training period (7 training sessions.week-1). During the 1-week selection camp, differences (p<0.05) between Selected and Not Selected athletes in performances, heart rate responses, blood lactate accumulation [La], subjective ratings of perceived exertion (session-RPE), and mood were examined. During the 3-week national training period, differences (p<0.05) in mood between Selected and Established National athletes were investigated.

RESULTS:

With respect to Not Selected athletes, Selected athletes responded better to training in terms of session-RPE (p=0.047), and [La] (p = 0.046). No difference in performance and mood between subgroups emerged. After the 3-week National training period, differences (p=0.035) emerged for confusion, with decreases in the Established National athletes and increases for recently Selected athletes.

CONCLUSIONS:

Session-RPE and [La] seem to be more effective in discriminating between elite taekwondo athletes than psychological measures. Evaluation of mood could be effective in monitoring the athlete's response to National training.

quinta-feira, 14 de junho de 2012

Artigo a ser publicado envolvendo uchi-komi intermitente em alta intensidade

Depois de um ano para ser rejeitado em outra revista, sairá em outra com FI maior. E depois dizem que uma das premissas da ciência é a lógida : )

Notem que as unidades saíram sem o -1. Acho que apagaram na edição final hahahaha

Tb tenho uma dúvida: no lattes, coloco em aceito como indica o CNPq ou faço como meus nobres colegas que colocam em publicado sempre com a mesma paginação (p.1-9)?


J Strength Cond Res. 2012 Jun 11. [Epub ahead of print]


Physiological and Performance Responses to Intermittent Uchi-komi in Judo.

Franchini E, Panissa VL, Julio UF.

1Department of Sport, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil Laboratory (s) where the research was conducted: Laboratory of Energetic Determinants of Sport Performance - School of Physical Education and Sport, University of São Paulo, São Paulo.



Abstract

ABSTRACT: The objective of the present study was to compare the physiological and performance responses to different judo techniques and time structure uchi-komi (technique entrance) protocols. Ten judo athletes (25±6 years old, 73±9 kg, 173±5 cm, and 15±6 years of judo experience) were submitted to nine all-out uchi-komi sessions. Three techniques (o-uchi-gari, seoi-nage, and harai-goshi) and three different time structures (18x10s/10s, 9x20s/20s, and 6x30s/30s) were randomly assigned. Two-way and three-way ANOVA with repeated measurements and the Bonferroni test were used. The significance level was fixed at 5%. There was no effect of the time structure or the technique on the absolute energy expenditure (P > 0.05), which can be attributed to the all-out characteristic of the exercise. However, more repetitions were executed during the o-uchi-gari protocol (F = 19; P < 0.001; η = 0.32) compared to harai-goshi and seoi-nage (P < 0.001 for both comparisons). Oxygen consumption differed over time during the activity (F = 767; P < 0.001; η = 0.904), with lower values during the 1 min (32.51 ± 3.21 mL.kg.min) compared to the 2 (41.47 ± 4.20 mL.kg.min) and 3 minutes (42.96 ± 4.29 mL.kg.min), and lower values were recorded in the 2 min compared to the 3 min (P < 0.001 for all comparisons). There was also an effect of technique on the total energy expenditure per repetition (F = 6; P = 0.001; η = 0.128), with o-uchi-gari resulting in lower values compared to seoi-nage (P = 0.003), as the former technique does not involve torso rotation and knee flexion, while the latter technique does. These training protocols resulted in similar oxygen uptake and heart rate responses compared to match simulations, and they can be used to simulate the match demand.


http://www.ncbi.nlm.nih.gov/pubmed/22692119

quarta-feira, 6 de junho de 2012

Direto de Genova

Aquisição do dia, após palestra por aqui. Textos sobre o lutar, pelos lutadores, transcrito e adaptado por autor com nome do meu pai : )




Odeio la guerra

Detesto gli eserciti

Amo combattere

Sul muro di una palestra a Vedano al Lambro

terça-feira, 5 de junho de 2012

Lesões no TKD

Br J Sports Med. 2012 Jun;46(7):485-91.


Competition injuries in taekwondo: a literature review and suggestions for prevention and surveillance.

Pieter W, Fife GP, O'Sullivan DM.

Dong-A University, College of Sports Science, Department of Physical Education, 180 Hadan 2-dong Sahagu, Busan, Gyeongsangnamdo 604714, Republic of Korea. fifeg.dau.ac.kr@gmail.com.



Abstract

Objective To review competition injuries in taekwondo and use this information to develop recommendations to reduce the number and severity of injuries in taekwondo competition. Methods The available literature was searched for prospective studies on taekwondo injuries in adult athletes. An injury was defined as any circumstance for which the athlete sought the assistance of the on-site medical personnel. Injury rates were expressed per athlete-exposures (A-E) and 95% CIs calculated. Results Total injury rates for elite men varied from 20.6/1000 A-E (95% CI 11.8 to 29.3) to 139.5/1000 A-E (95% CI 94.0 to 185.1). For elite women, the rates varied from 25.3/1000 A-E (95% CI 3.1 to 47.4) to 105.5/1000 A-E (95% CI 89.8 to 121.1). About one-third of all injuries (29.6%) in the men were to the head and neck region, while almost half of the injuries (44.5%) were to the lower extremities. In women, 15.2% of injuries were to the head and neck and 53.1% to the lower extremities. The vast majority of all injuries were contusions (42.7% in the men and 62.7% in the women). Point estimates of rates of head injuries and concussions were found to be higher in taekwondo than in other contact sports such as football (soccer) and American gridiron football. Time-loss injury rates in the men varied from 6.9/1000 A-E (95% CI 1.8 to 11.9) to 33.6/1000 A-E (95% CI 18.9 to 48.3). In the women, they varied from 2.4/1000 A-E (95% CI 2.3 to 7.2) to 23.0/1000 A-E (95% CI 15.7 to 30.4). The turning kick was most often involved in causing injury: 56.9% of all injuries in the men and 49.8% in the women. Lack of blocking skills was identified as one of the main injury mechanisms. Conclusions Rule changes should be considered and it is recommended that governing bodies employ qualified medical personnel. Establishing an ongoing injury surveillance system in taekwondo should be the first priority.