Para quem achava que eu exagerava sobre o futuro dos eventos do tipo MMA...

http://www.youtube.com/watch?v=s9_1q3TULHs

Não dá para negar que é mais "real"...

Não é sobre L/AM/MEC, mas serve de inspiração : (

http://esporte.uol.com.br/natacao/ultimas-noticias/2013/02/27/modelo-duplicado-e-falta-de-patrocinio-acabam-com-sonho-de-tropa-de-elite-de-cielo.htm

Perda de peso e suplementação de citrato em lutadores

Appl Physiol Nutr Metab. 2012 Dec;37(6):1028-37. doi: 10.1139/h2012-089. Epub 2012 Aug 8.

Dietary sodium citrate supplementation enhances rehydration and recovery from rapid body mass loss in trained wrestlers.

Timpmann S, Burk A, Medijainen L, Tamm M, Kreegipuu K, Vähi M, Unt E, Oöpik V.

Source

Institute of Exercise Biology and Physiotherapy, University of Tartu, Tartu, Estonia.

Abstract

This study assessed the effects of dietary sodium citrate supplementation during a 16 h recovery from 5% rapid body mass loss (RBML) on physiological functions, affective state, and performance in trained wrestlers. Sixteen wrestlers performed an upper body intermittent sprint performance (UBISP) test under three conditions: before RBML, after RBML, and after a 16 h recovery from RBML. During recovery, the subjects ate a prescribed diet supplemented with sodium citrate (600 mg·kg(-1); CIT group, N = 8) or placebo (PLC group, N = 8) and drank water ad libitum. RBML reduced (p < 0.05) UBISP mean power and increased urine specific gravity (USG). Reduction in mean power was associated with changes in plasma volume (PV) (r = 0.649, p = 0.006) and USG (r = -0.553, p = 0.026). During the 16 h recovery, increases in body mass (BM) and PV were greater (p < 0.05) in the CIT group than in the PLC group. BM gain was associated with water retention in the CIT group (r = 0.899, p = 0.002) but not in the PLC group (r = 0.335, p = 0.417). Blood pH, HCO(3)(-) concentration, and base excess increased (p < 0.05) only in the CIT group. Changes in UBISP, general negative affect, and general positive affect did not differ in the two groups. In conclusion, ingestion of sodium citrate increases blood buffering capacity and PV and stimulates BM regain during a 16 h recovery from RBML in trained wrestlers. However, sodium citrate does not improve UBISP nor does it have an impact on the affective state.

Esgrima

J Sports Sci. 2013 Feb 20. [Epub ahead of print]

Effect of target change during the simple attack in fencing.

Gutiérrez-Dávila M, Rojas FJ, Caletti M, Antonio R, Navarro E.

Source

a University of Granada , Faculty of Sport Sciences, Department of Physical Education and Sports , Granada , Spain.

Abstract

Abstract The aim of this study was to test the effect that changing targets during a simple long lunge attack in fencing exerts on the temporal parameters of the reaction response, the execution speed, and the precision and the coordination of the movement pattern. Thirty fencers with more than 10 years of experience participated in this study. Two force platforms were used to record the horizontal components of the reaction forces and thereby to determine the beginning of the movement. A three-dimensional (3D) system recorded the spatial positions of the 9 markers situated on the fencer plus the epee, while a moving target was projected on a screen, enabling the control of the target change. The results indicated that when a target change is provoked the reaction time (RT), movement time (MT), and the time used in the acceleration phase of the centre of mass (CM) increases significantly with respect to the attack executed with a straight thrust. The speed and horizontal distance reached by the CM at the end of the acceleration phase (V(X(CM)) and S(X(CM)), respectively) significantly decreased, while the errors increased. However, the temporal sequence of the movement pattern did not appreciably change.

Enfim, acertar alvo móvel é mais difícil do que acertar um alvo parado : )

PSE, FC e lactato no randori (vai sair no Asian Journal of Sports Medicine)

Association between Rate of Perceived Exertion, Heart Rate and Blood Lactate in Successive Judo Fights (Randori)
Branco, Braulio H.M.; Massuça, Luis M.; Andreato, Leonardo V.; Marinho, Bruno F.; Bianca Miarka; Monteiro, Luis; Franchini, Emerson.
Abstract
Purpose: This study aims to investigate the association between the rate of perceived exertion (RPE), heart rate (HR) and the blood lactate concentration ([La]) in successive judo fight simulations (randori). Ten athletes participated in the study (age: 25.6±2.1 years; stature: 1.75±0.07 m; body mass: 75.6±14.9kg; %BF: 11.5±7.8%; practice: 14.5±6.2 years) and completed 4 judo fight simulations (T1 to T4) with duration of 5 min
separated with a 5 min passive recovery periods. Before each randori, [La] and HR were collected, and after each randori, the same measures and the RPE (CR-10 scale) were collected. Results: Significant correlations were observed between: (1) CR-10 and HR (T2: r =0.70; T3: r =0.64; booth, P<0 .05="" a="" and="" nbsp="" p="" r=".71," span="">0.05; T2-T3: r =0.92, P<0 .01="" moreover="" nbsp="" p="" r="0.73," significant="" span="" t3-t4:="">differences were noted in the behavior of the HR between the 2nd (T2) and 3rd (T3) judo fight simulations (P<0 .05="" nbsp="" span="">Conclusion: The use of CR-10 in the evaluation process, as well as in deciding the load of training in judo, should be done with caution.
http://asjsm.tums.ac.ir/index.php/asjsm/article/view/321/pdf

Composição corporal, VO2max e parâmetros neuromusculares de atletas de TKD

Revista Brasileira de Prescrição e Fisiologia do Exercício
ISSN 1981-9900 versão eletrônica
Per iódico do Ins t i tuto Brasi lei ro de Pesqui sa e Ensino em Fi s iologia do Exercício
w w w . i b p e f e x . c o m . b r / w w w . r b p f e x . c o m . b r
COMPOSIÇÃO CORPORAL, VO2MAX E PARÂMETROS NEUROMUSCULARES DE LUTADORES DE TAEKWONDO DO RIO GRANDE DO SUL, BRASIL
Anderson Campos1, Marina Leichtweis2, Nunes Volmar3, Mariangela Afonso3


http://www.rbpfex.com.br/index.php/rbpfex/article/view/490/466

FC e PSE em atletas de BJJ

Revista Brasileira de Prescrição e Fisiologia do Exercício
ISSN 1981-9900 versão eletrônica
Per iódico do Ins t i tuto Brasi lei ro de Pesqui sa e Ensino em Fi s iologia do Exercício
w w w . i b p e f e x . c o m . b r / w w w . r b p f e x . c o m . b r
COMPORTAMENTO DA FREQUÊNCIA CARDÍACA E PERCEPÇÃO SUBJETIVA DE ESFORÇO DURANTE COMBATE DE JIU-JITSU BRASILEIRO Richard William Carneiro1, Thiago Mattos Frota De Souza2, Claudio de Oliveira Assumpção3, João Bartholomeu Neto4, Ricardo Yukio Asano4, José Fernando de Oliveira5


RESUMO
O presente estudo teve como objetivo avaliar o comportamento da frequência cardíaca (FC) e sua relação com a percepção subjetiva de esforço (PSE) em atletas de Jiu-Jitsu Brasileiro (JJB) com idade de 27±6,24 anos, 85,6±16,95 kg, 1,76±0,06 m e IMC 28 ± 4,33 kg/m². O protocolo experimental consistiu da simulação de um combate com utilização de tempo oficial (10 minutos) independente de ocorrer ou não a finalização do adversário. A FC foi aferida pré (113,4±13,2 bpm), durante todo combate, nos minutos 2,5 (165,1±11,9 bpm), 5 (170,1±15,9 bpm), 7,5 (170,1±13,9 bpm) e 10 (173,1±10,4 bpm) e pós, nos minutos 1 (139,8±13,0 bpm), 2 (132,4±10,6 bpm) e 3 (127,1±12,1 bpm), assim como a PSE (5,0±1,0) ao final da luta. De acordo com os resultados foi possível verificar que os lutadores mantiveram a frequência cardíaca elevada durante toda a luta, correspondendo a uma alta intensidade de esforço (91,6±5,5 %), assim como a PSE, que apresentou classificação próxima à PESADA. Deste modo, concluímos que a utilização da escala de Borg foi capaz de identificar a intensidade de esforço durante



http://www.rbpfex.com.br/index.php/rbpfex/article/view/466/458