O link abaixo dá acesso ao programa do evento, no qual estivemos representados, pelo segundo ano seguido, pelo Prof. Dr Michel Calmet:
http://www.jorrescam.fr/IMG/pdf/Programme_10e_JORRESCAM.pdf
http://grupodestudoslutas.blogspot.com
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domingo, 28 de março de 2010
sexta-feira, 26 de março de 2010
e-mail mestrandos para auxílio em seus projetos
Ursula - VC no judô ur_sulinha@yahoo.com.br
Mário - árbitros de judô marioluiz@tectex.com.br
Juliano - aptidão física de praticantes de luta julianofisio@yahoo.com.br
Fábio - demanda fisiológica no TKD fabiocampos06@gmail.com
Mário - árbitros de judô marioluiz@tectex.com.br
Juliano - aptidão física de praticantes de luta julianofisio@yahoo.com.br
Fábio - demanda fisiológica no TKD fabiocampos06@gmail.com
quinta-feira, 25 de março de 2010
Problemas à vista
A IJF acaba de publicar matéria indicando a permissão do uso de apenas quatro marcas de judogi em suas competições oficiais. Contudo, diversas equipes recebem materiais esportivos de outras marcas e muitas vezes contratos são estabelecidos no sentido de assegurar que os atletas utilizem apenas o material do patrocinador. Assim, vejo que em breve problemas ocorrerão, a menos que essas quatro marcas estabeleçam contrato com todos as seleções nacionais, o que parece improvável...
Imaginem a FIFA limitando a marca de chuteiras ou de camisas e calções a serem utilizadas na África do Sul.
Regular as características dos materiais e suas dimensões é uma coisa; impedir o uso de marcas diversas àquelas de financiamento da instituição dirigente, configura algo parecido com o estabelecimento de cartel.
Um amigo até me lembrou dos selos no judogi durante a administração Mamede...
Imaginem a FIFA limitando a marca de chuteiras ou de camisas e calções a serem utilizadas na África do Sul.
Regular as características dos materiais e suas dimensões é uma coisa; impedir o uso de marcas diversas àquelas de financiamento da instituição dirigente, configura algo parecido com o estabelecimento de cartel.
Um amigo até me lembrou dos selos no judogi durante a administração Mamede...
terça-feira, 23 de março de 2010
segunda-feira, 22 de março de 2010
quinta-feira, 18 de março de 2010
sexta-feira, 12 de março de 2010
quarta-feira, 10 de março de 2010
Características musculares do deltóide de lutadores
Int J Sports Med. 2010 Mar;31(3):148-153. Epub 2010 Feb 15.
Deltoid Muscle Characteristics in Wrestlers.
Mandroukas A, Heller J, Metaxas TI, Christoulas K, Vamvakoudis E, Stefanidis P, Papavasileiou A, Kotoglou K, Balasas D, Ekblom B, Mandroukas K.
Laboratory of Ergophysiology-Ergometry, Department of Physical Education and Sports Science, Aristotle University of Thessaloniki, Greece.
The purpose of the present study was to investigate the deltoid muscle characteristics of wrestlers. Nine Greco-Roman competitive male wrestlers (mean age 20.1+/-2.7 yrs, height 175+/-0.6 cm, weight 83.2+/-12.5 kg, years of training 7.6+/-2.7 yrs) participated in this study. Six male healthy sedentary students (mean age 21.2+/-0.9 yrs, height 180+/-0.3 cm, weight 80.1+/-9.4 kg) served as controls. Muscle fibre distribution, cross-sectional area (CSA), as well as satellite cells, myonuclei and capillary density per muscle fibre area were determined by immunohistochemistry. Myosin heavy chain MHC isoform composition of single fibres was determined with protein electrophoresis. Immunohistochemical analysis showed that muscle fibre distribution of the MHC I and IIA were significantly higher in wrestlers than in controls (p<0.05). Electrophoretic analysis of single fibres revealed a significantly higher proportion of fibres containing MHC I and IIC in wrestlers (p<0.05). The mean CSA of type IIA fibres and the number of myonuclei per type II was significantly higher in wrestlers (p<0.05). We also found that the number of satellite cells was 2.5 fold higher in wrestlers than in the control group. This study suggests that the observed muscle fibre profile in the deltoid of wrestlers may represent an adaptation based on the specific mechanical and biochemical demands of the long-term training in Greco-Roman wrestling.
Deltoid Muscle Characteristics in Wrestlers.
Mandroukas A, Heller J, Metaxas TI, Christoulas K, Vamvakoudis E, Stefanidis P, Papavasileiou A, Kotoglou K, Balasas D, Ekblom B, Mandroukas K.
Laboratory of Ergophysiology-Ergometry, Department of Physical Education and Sports Science, Aristotle University of Thessaloniki, Greece.
The purpose of the present study was to investigate the deltoid muscle characteristics of wrestlers. Nine Greco-Roman competitive male wrestlers (mean age 20.1+/-2.7 yrs, height 175+/-0.6 cm, weight 83.2+/-12.5 kg, years of training 7.6+/-2.7 yrs) participated in this study. Six male healthy sedentary students (mean age 21.2+/-0.9 yrs, height 180+/-0.3 cm, weight 80.1+/-9.4 kg) served as controls. Muscle fibre distribution, cross-sectional area (CSA), as well as satellite cells, myonuclei and capillary density per muscle fibre area were determined by immunohistochemistry. Myosin heavy chain MHC isoform composition of single fibres was determined with protein electrophoresis. Immunohistochemical analysis showed that muscle fibre distribution of the MHC I and IIA were significantly higher in wrestlers than in controls (p<0.05). Electrophoretic analysis of single fibres revealed a significantly higher proportion of fibres containing MHC I and IIC in wrestlers (p<0.05). The mean CSA of type IIA fibres and the number of myonuclei per type II was significantly higher in wrestlers (p<0.05). We also found that the number of satellite cells was 2.5 fold higher in wrestlers than in the control group. This study suggests that the observed muscle fibre profile in the deltoid of wrestlers may represent an adaptation based on the specific mechanical and biochemical demands of the long-term training in Greco-Roman wrestling.
Mais uma investigação sobre boxe no Wii
Ann Behav Med. 2010 Feb 19. [Epub ahead of print]
Motivation and Physiologic Responses of Playing a Physically Interactive Video Game Relative to a Sedentary Alternative in Children.
Penko AL, Barkley JE.
The School of Exercise Leisure and Sport, Kent State University, Kent, OH, 44240, USA, penkoa@ccf.org.
Abstract
Background While there is emerging research outlining the physiologic cost of the physically interactive Nintendo Wii, there are no evaluations of the relative reinforcing value (RRV) of the Wii versus a sedentary alternative. Purpose The purpose of this study is to evaluate the physiologic cost, RRV, and liking of playing Wii Sports Boxing (Wii) versus a traditional sedentary video game (SVG) in 11 lean and 13 overweight/obese 8- to 12-yearold children. Methods Heart rate (HR) and VO2 were assessed during rest, treadmill walking, and playing an SVG and Wii using a counterbalance design. Liking was assessed during treadmill walking and video game play. RRV was assessed for Wii versus SVG.
Results Average HR, VO2, and liking were significantly greater for Nintendo Wii (p≤0.001 for all) than all other conditions. Lean children displayed a greater (p<0.001)peak responding for access to Wii relative to the SVG while overweight/obese children did not (p≥0.16). Conclusion Wii was a well-liked activity of greater physiologic intensity than both the SVG and treadmill walking. Lean children were more motivated while overweight/obese children were equally as motivated to play Wii relative to the SVG.
Motivation and Physiologic Responses of Playing a Physically Interactive Video Game Relative to a Sedentary Alternative in Children.
Penko AL, Barkley JE.
The School of Exercise Leisure and Sport, Kent State University, Kent, OH, 44240, USA, penkoa@ccf.org.
Abstract
Background While there is emerging research outlining the physiologic cost of the physically interactive Nintendo Wii, there are no evaluations of the relative reinforcing value (RRV) of the Wii versus a sedentary alternative. Purpose The purpose of this study is to evaluate the physiologic cost, RRV, and liking of playing Wii Sports Boxing (Wii) versus a traditional sedentary video game (SVG) in 11 lean and 13 overweight/obese 8- to 12-yearold children. Methods Heart rate (HR) and VO2 were assessed during rest, treadmill walking, and playing an SVG and Wii using a counterbalance design. Liking was assessed during treadmill walking and video game play. RRV was assessed for Wii versus SVG.
Results Average HR, VO2, and liking were significantly greater for Nintendo Wii (p≤0.001 for all) than all other conditions. Lean children displayed a greater (p<0.001)peak responding for access to Wii relative to the SVG while overweight/obese children did not (p≥0.16). Conclusion Wii was a well-liked activity of greater physiologic intensity than both the SVG and treadmill walking. Lean children were more motivated while overweight/obese children were equally as motivated to play Wii relative to the SVG.
Artigo interessante sobre estudo de caso envolvendo perda de peso de boxeador
Int J Sport Nutr Exerc Metab. 2010 Feb;20(1):80-5.
Making the weight: a case study from professional boxing.
Morton JP, Robertson C, Sutton L, Maclaren DP.
Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK.
Professional boxing is a combat sport categorized into a series of weight classes. Given the sport's underpinning culture, boxers' typical approach to "making weight" is usually via severe acute and/or chronic energy restriction and dehydration. Such practices have implications for physical performance and also carry health risks. This article provides a case-study account outlining a more structured and gradual approach to helping a professional male boxer make weight for the 59-kg superfeatherweight division. Over a 12-week period, the client athlete adhered to a daily diet approximately equivalent to his resting metabolic rate (6-7 MJ; 40% carbohydrate, 38% protein, 22% fat). Average body-mass loss was 0.9 +/- 0.4 kg/wk, equating to a total loss of 9.4 kg. This weight loss resulted in a decrease in percent body fat from 12.1% to 7.0%. In the 30 hr between weigh-in and competition, the client consumed a high-carbohydrate diet (12 g/kg body mass) supported by appropriate hydration strategies and subsequently entered the ring at a fighting weight of 63.2 kg. This nutritional strategy represented a major change in the client's habitual weight-making practices and did not rely on any form of intended dehydration during the training period or before weighing in. The intervention demonstrates that a more gradual approach to making weight in professional boxing can be successfully achieved via a combination of restricted energy intake and increased energy expenditure, providing there is willingness on the part of the athlete and coaches involved to adopt novel practices.
Making the weight: a case study from professional boxing.
Morton JP, Robertson C, Sutton L, Maclaren DP.
Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK.
Professional boxing is a combat sport categorized into a series of weight classes. Given the sport's underpinning culture, boxers' typical approach to "making weight" is usually via severe acute and/or chronic energy restriction and dehydration. Such practices have implications for physical performance and also carry health risks. This article provides a case-study account outlining a more structured and gradual approach to helping a professional male boxer make weight for the 59-kg superfeatherweight division. Over a 12-week period, the client athlete adhered to a daily diet approximately equivalent to his resting metabolic rate (6-7 MJ; 40% carbohydrate, 38% protein, 22% fat). Average body-mass loss was 0.9 +/- 0.4 kg/wk, equating to a total loss of 9.4 kg. This weight loss resulted in a decrease in percent body fat from 12.1% to 7.0%. In the 30 hr between weigh-in and competition, the client consumed a high-carbohydrate diet (12 g/kg body mass) supported by appropriate hydration strategies and subsequently entered the ring at a fighting weight of 63.2 kg. This nutritional strategy represented a major change in the client's habitual weight-making practices and did not rely on any form of intended dehydration during the training period or before weighing in. The intervention demonstrates that a more gradual approach to making weight in professional boxing can be successfully achieved via a combination of restricted energy intake and increased energy expenditure, providing there is willingness on the part of the athlete and coaches involved to adopt novel practices.
sexta-feira, 5 de março de 2010
Antropometria e resposta eletrolítica durante uma temporada competitiva de judô
Evolución antropométrica y electrolítica en un periodo competitivo en judokas de elite
Anthropometric and electrolytic progression in a competitive period in elite judokas
Raquel Hernández García1, Gema Torres Luque2, Raquel Escobar Molina3
1. Área de Formación e Investigación. Federación Extremeña de Judo y DA
2. Departamento de Didáctica de la Expresión Musical, Plástica y Corporal. Universidad de Jaén
3. Departamento de ciencias de la actividad física y del deporte. Universidad de Granada
Resumen
El objetivo es valorar los efectos de la bajada de peso a la que están sometidos los judokas antes de una competición,sobre los cambios homeostáticos a nivel de parámetros hematológicos y electrolitos plasmáticos, así como analizar la correlación existente entre estos parámetros. Se seleccionaron 7 judokas de elite (20,7±3,2 años de edad; 72,8±15,9 kg de peso corporal y con una talla de 170,8±10,3 cm), y se realizó una determinación de estos parámetros durante un periodo competitivo de 7 semanas de duración, realizando las siguientes pruebas: 6 semanas antes de la competición (P1), 5 días antes (P2), el día de la competición (P3) y dos días después de la misma (P4). Los resultados muestran un descenso estadísticamente significativo del peso corporal, el % de grasa y la masa residual de los judokas el mismo día de la competición. Así como un incremento significativo de linfocitos en P2, y una disminución significativa de hematíes, hemoglobina y hematocrito a lo largo del periodo competitivo. Sin embargo, los lectrolitos sodio y potasio no muestran cambios significativos durante el estudio, a pesar de que el cloro plasmático aumenta estadísticamente en P2 y P3. El peso corporal se relaciona
inversamente con los valores de hematocrito y con el sodio, y paralelamente con el potasio y el cloro plasmático. Esto indica que el descenso rápido de peso corporal en judokas antes de la competición trae consigo cambios hematológicos en el organismo del judokas, pero no trae consigo variaciones en los niveles de electrolitos plasmáticos, mostrando una adecuada regulación homeostática.
Anthropometric and electrolytic progression in a competitive period in elite judokas
Raquel Hernández García1, Gema Torres Luque2, Raquel Escobar Molina3
1. Área de Formación e Investigación. Federación Extremeña de Judo y DA
2. Departamento de Didáctica de la Expresión Musical, Plástica y Corporal. Universidad de Jaén
3. Departamento de ciencias de la actividad física y del deporte. Universidad de Granada
Resumen
El objetivo es valorar los efectos de la bajada de peso a la que están sometidos los judokas antes de una competición,sobre los cambios homeostáticos a nivel de parámetros hematológicos y electrolitos plasmáticos, así como analizar la correlación existente entre estos parámetros. Se seleccionaron 7 judokas de elite (20,7±3,2 años de edad; 72,8±15,9 kg de peso corporal y con una talla de 170,8±10,3 cm), y se realizó una determinación de estos parámetros durante un periodo competitivo de 7 semanas de duración, realizando las siguientes pruebas: 6 semanas antes de la competición (P1), 5 días antes (P2), el día de la competición (P3) y dos días después de la misma (P4). Los resultados muestran un descenso estadísticamente significativo del peso corporal, el % de grasa y la masa residual de los judokas el mismo día de la competición. Así como un incremento significativo de linfocitos en P2, y una disminución significativa de hematíes, hemoglobina y hematocrito a lo largo del periodo competitivo. Sin embargo, los lectrolitos sodio y potasio no muestran cambios significativos durante el estudio, a pesar de que el cloro plasmático aumenta estadísticamente en P2 y P3. El peso corporal se relaciona
inversamente con los valores de hematocrito y con el sodio, y paralelamente con el potasio y el cloro plasmático. Esto indica que el descenso rápido de peso corporal en judokas antes de la competición trae consigo cambios hematológicos en el organismo del judokas, pero no trae consigo variaciones en los niveles de electrolitos plasmáticos, mostrando una adecuada regulación homeostática.
Respostas hormonais e desempenho em atletas de judô da classe júnior
PRE- AND POST-START HORMONE LEVELS IN BLOOD AS AN INDICATOR OF PSYCHO-PHYSIOLOGICAL LOAD WITH JUNIOR JUDO COMPETITORS - Hormone levels in blood
ZBIGNIEW OBMIŃSKI
Institute of Sport in Warsaw, Endocrinology Department
Abstract: The objective of the study was: (i) identification of pre-start and start stress with junior judo competitors, (ii) analysis of relationship between the hormonal status and the results. The objectives were attained by measurements in 7 judo competitors of cortisol (C) and testosterone (T) concentration in capillary blood taken in the morning on several dates: under neutral conditions (NC), 21 days before the Junior Judo European Championship (-21D), 4 days before the competition (-4D), on the start day, i.e. on the day of qualification fights (0D) and on the following day (RD). On the start day, with all the tested competitors there was a significantly higher level C (p < 0.05) in relation to the previous dates. In the tested group, on the morning of the start day one competitor had a lowered T level (5.1 nmol/L) and the highest C level in the group C (740 nmol/L) while average values with the other 6 tested competitors were 27.6 ± 8.1 and 598 ± 74 nmol/L for T and C respectively. The competitor with the temporary pre-start hyper-cortisolism and hypo-androgenism manifested lower mood before the start and during the only lost fight he displayed much passivity in relation to the opponent. On the other hand, the other competitors, including two medal winners, demonstrated offensive behaviour and determination during the competition. The results confirmed the known impact of pre-start stress on increased activity of the adrenal cortex and the significance of the appropriately high testosterone level as a condition for success. On the other hand, temporary inhibition of testosterone production as a result of pre-start stress with sportsmen has not been recorded in literature.
ZBIGNIEW OBMIŃSKI
Institute of Sport in Warsaw, Endocrinology Department
Abstract: The objective of the study was: (i) identification of pre-start and start stress with junior judo competitors, (ii) analysis of relationship between the hormonal status and the results. The objectives were attained by measurements in 7 judo competitors of cortisol (C) and testosterone (T) concentration in capillary blood taken in the morning on several dates: under neutral conditions (NC), 21 days before the Junior Judo European Championship (-21D), 4 days before the competition (-4D), on the start day, i.e. on the day of qualification fights (0D) and on the following day (RD). On the start day, with all the tested competitors there was a significantly higher level C (p < 0.05) in relation to the previous dates. In the tested group, on the morning of the start day one competitor had a lowered T level (5.1 nmol/L) and the highest C level in the group C (740 nmol/L) while average values with the other 6 tested competitors were 27.6 ± 8.1 and 598 ± 74 nmol/L for T and C respectively. The competitor with the temporary pre-start hyper-cortisolism and hypo-androgenism manifested lower mood before the start and during the only lost fight he displayed much passivity in relation to the opponent. On the other hand, the other competitors, including two medal winners, demonstrated offensive behaviour and determination during the competition. The results confirmed the known impact of pre-start stress on increased activity of the adrenal cortex and the significance of the appropriately high testosterone level as a condition for success. On the other hand, temporary inhibition of testosterone production as a result of pre-start stress with sportsmen has not been recorded in literature.
Motivação de atletas de judô, relação com treinadores e desempenho
Influence of coaches' autonomy support on athletes' motivation and sport performance: A test of the hierarchical model of intrinsic and extrinsic motivation..
Gillet, Nicolas1 nicolas.gillet@univ-tours.fr
Vallerand, Robert J.2
Amoura, Sofiane3
Baldes, Brice3.
Psychology of Sport & Exercise Mar2010, Vol. 11 Issue 2, p155-161.
Abstract: Objectives: Based on the hierarchical model of intrinsic and extrinsic motivation [Vallerand, R. J. (1997). Toward a hierarchical model of intrinsic and extrinsic motivation. In M. P. Zanna (Ed.), Advances in experimental social psychology (pp. 271–360). New York: Academic Press], the purpose of this study was to propose and test a model which posits that coaches'' autonomy support facilitates athletes'' self-determined motivation toward a sport activity (i.e., judo). Self-determined motivation promotes athletes'' situational self-determined motivation before a competition, that in turn, predicts their sport performance. Method: A total of 101 judokas completed questionnaires after the weighting session (i.e., between one and two hours before the beginning of the competitive event). Athletes'' objective performance during the competition was obtained via the French Judo Federation. Results: Results from structural equation modeling analyses provided support for the hypothesized model. These results are in accordance with self-determination theory and the hierarchical model. Conclusions: By showing that coaches'' autonomy support facilitates self-determined motivation and sport performance, the present findings have important implications for a better understanding of the determinants of athletes'' performance. Copyright &y& Elsevier.
Gillet, Nicolas1 nicolas.gillet@univ-tours.fr
Vallerand, Robert J.2
Amoura, Sofiane3
Baldes, Brice3.
Psychology of Sport & Exercise Mar2010, Vol. 11 Issue 2, p155-161.
Abstract: Objectives: Based on the hierarchical model of intrinsic and extrinsic motivation [Vallerand, R. J. (1997). Toward a hierarchical model of intrinsic and extrinsic motivation. In M. P. Zanna (Ed.), Advances in experimental social psychology (pp. 271–360). New York: Academic Press], the purpose of this study was to propose and test a model which posits that coaches'' autonomy support facilitates athletes'' self-determined motivation toward a sport activity (i.e., judo). Self-determined motivation promotes athletes'' situational self-determined motivation before a competition, that in turn, predicts their sport performance. Method: A total of 101 judokas completed questionnaires after the weighting session (i.e., between one and two hours before the beginning of the competitive event). Athletes'' objective performance during the competition was obtained via the French Judo Federation. Results: Results from structural equation modeling analyses provided support for the hypothesized model. These results are in accordance with self-determination theory and the hierarchical model. Conclusions: By showing that coaches'' autonomy support facilitates self-determined motivation and sport performance, the present findings have important implications for a better understanding of the determinants of athletes'' performance. Copyright &y& Elsevier.
1 Psychologie des Âges de la Vie, Université François Rabelais – Tours, France; 2 Laboratoire de Recherche sur le Comportement Social, Université du Québec à Montréal, Canada; 3 Laboratoire de Psychologie Appliquée, Université de Reims Champagne-Ardenne, France
quarta-feira, 3 de março de 2010
Ameaça de morte no UFC
A matéria publicada no UOL e enviada a mim pelo Fabrício me fez lembrar das histórias do Kimura.
Aqui a matéria:
http://esporte.uol.com.br/lutas/vale-tudo/ultimas-noticias/2010/02/24/ameaca-de-morte-de-mir-a-lesnar-causa-crise-nos-pesos-pesados-do-ufc.jhtm
Aqui algumas das histórias do Kimura:
http://judoinfo.com/kimura2.htm
O tema permite estudos interessantes...
Aqui a matéria:
http://esporte.uol.com.br/lutas/vale-tudo/ultimas-noticias/2010/02/24/ameaca-de-morte-de-mir-a-lesnar-causa-crise-nos-pesos-pesados-do-ufc.jhtm
Aqui algumas das histórias do Kimura:
http://judoinfo.com/kimura2.htm
O tema permite estudos interessantes...
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