segunda-feira, 29 de dezembro de 2014

Artigo sobre TKD na International SportMed Journal

Physiological responses during taekwondo training and competition
Objective: The study aimed to review physiological responses to training and either simulated or official competition in adult World Taekwondo Federation (WTF) taekwondo athletes. Data sources: The following databases were search: Web of Science, Scopus, Google Scholar and PubMed indexed articles published until January 2014.Study selection: One hundred and forty-seven studies were retrieved using the following terms: “taekwondo and physiology”, “taekwondo and heart rate”, taekwondo and blood lactate”, “taekwondo and hormones”, “taekwondo and time-motion”, “taekwondo and competition” and “taekwondo and training”. Data extraction: Twelve articles were selected, because they were conducted with WTF adult taekwondo athletes and measured heart rate, blood lactate and oxygen consumption in taekwondo combat competitions, competition simulations, isolated combat simulations or training sessions and were published in peer-reviewed journals. Data synthesis: Studies demonstrated a high cardiovascular solicitation and a moderate to high aerobic demands during taekwondo specific training exercises. Due to the high variability of heart rate responses and blood lactate concentration during simulated taekwondo combat, further investigations are needed. When considering the energy system contribution, the only study available reported the predominance of the aerobic metabolism followed by the anaerobic alactic, which is the determinant during decisive actions. A high cardiovascular demand with most of the time spent exercising at high-intensity and maximum heart rate zone has been found during official combat. For blood lactate concentrations, studies reported moderate to relatively high values. Conclusions: There are limited studies about physiological responses during taekwondo specific training exercises, simulated and official combat. Future studies seem to be needed, especially those that will be conducted within official taekwondo matches and/or specific taekwondo exercise sessionKeywords: taekwondo, physiology, competition, training, exercise
Associate Professor Emerson Franchini, Mr Montassar Tabben, Dr Helmi Chaabène

terça-feira, 9 de dezembro de 2014

Determinação da potência pico e força máxima para membros superiores em atletas de BJJ

 2014 Dec 5. [Epub ahead of print]

Optimal load for the peak power and maximal strength of the upper body in Brazilian Jiu-jitsu athletes.


We determined the optimal load for the peak power output (PPO) during the bench press throw (BPT) in Brazilian Jiu-Jitsu (BJJ) athletes and compared the PPO and maximal strength between advanced (AD) and not advanced (NA) athletes. Twenty-eight BJJ athletes (24.8 ± 5.7 yrs) performed the BPT at loads of 30, 40, 50, and 60% of their 1 repetition maximum (1RM) in a randomized order (5 min rest between BPTs). The PPO was determined by measuring the barbell displacement by an accelerometer (Myotest). The absolute (F = 7.25; p < 0.001; and effect size [ES] = 0.21) and relative intensities were different (F = 7.11; p < 0.001; and ES = 0.21) between the AD and NA. There was also a group and intensity interaction effect (F = 2.79; p = 0.046; ES = 0.10), but the differences were centered around the AD group, which achieved higher values using 40% (p = 0.001) and 50% of the 1RM (p < 0.001) than the PPO with 60% of 1RM. The AD athletes presented with higher 1RM than NA (p < 0.05; ES = 1.0), but there was no difference (p > 0.05) in the PPO (30% to 60% 1RM). A polynomial adjustment indicated that the optimal load was ∼ 42% of 1RM for all groups and subgroups (R from 0.82 to 0.99). Our results suggest that there can be (1RM) differences between advanced and non-advanced BJJ athletes; however, there is no difference in the muscle power between the AD and NA groups. Additionally, ∼ 42% of 1RM seems to be the optimal load for developing maximal power using the bench press throw for the BJJ athletes.

quarta-feira, 3 de dezembro de 2014

Impacto das punições sobre a efetividade do ataque subsequente e sobre o resultado do combate entre atletas de judô de alto nível

The aim of this study was to analyse the impact of incurring a penalty (shido) on subsequent attack effectiveness and combat result among judo competitors. The sample contained 1462 throw attempts and 293 shido from 242 fights that counted toward the IJF 2013 World Ranking List, including both genders and all weight categories. Variables pertaining to attack effectiveness, combat result and combat minute were included in analyses. Data were collected through systematic observation. Two-way ANOVA and post-hoc pairwise comparisons with Bonferroni correction were used to identify the effects of gender and weight category on the number of shido given per fight A series of multilevel binomial regression analyses were conducted to predict the influence of being penalised on subsequent attack effectiveness and combat result. Main findings revealed that receiving a shido was associated with match outcome, increasing the likelihood of being defeated (OR = 3.18; P < 0.01), particularly in heavier weight categories (OR = 1.22; P < 0.01). Furthermore, the probability of being penalised increased with greater time in the match (OR = 2.41; P < 0.01). Finally, winners were more effective in attacking after receiving a shido compared to combatants who ultimately lost the match (OR = 6.51; P < 0.01). Thus, developing training tasks to enhance athletes' combativeness appears essential to avoid being penalised during the fight. Additionally, effectively dealing with being penalised is an important aspect in modern judo. The reported data may constitute a useful guide in the development of competition-specific training tasks to enhance athletes' adaptation and responses during the fight, improving performance.

quarta-feira, 26 de novembro de 2014

segunda-feira, 3 de novembro de 2014

Treinamento aeróbio para atletas de judô

 2014 Oct 30. [Epub ahead of print]

Aerobic training program for the enhancements of HR and VO2 off-kinetics in elite judo athletes.



The purpose of this study was to investigate the physiologic and performance changes with the addition of high-intensity interval training (HIIT) to a traditional judo programme.


Nine elite judokas (6 males and 3 females; age: 20±4 yrs; body mass: 69±2 kg; height: 172±7 cm; judo practice time: 13±6 yrs; weekly training volume: 13±5 hours, mean±SD) were recruited to perform a 12-week specific aerobic training program, which consisted of 2 session/week of 30-min continuous run at 60% at Vmax and one session/week of high-intensity interval training 15x1-min at 90% of Vmax with1 min of active recovery at 60% of Vmax. Before and after the intervention all athletes performed a graded maximal exercise test to measure maximal oxygen consumption ( max), ventilatory threshold (VT), maximal velocity (Vmax), heart rate (HR) and  off kinetics. and HR recovery kinetics were evaluated on a breath-by-breath basis using a single component exponential function. Anaerobic capacity during specific movements was assessed with the Special Judo Fitness Test (SJFT).


The maximal speed reached during the maximal aerobic power test significantly increased (p=0.04), but VO2max did not change. τ of HR and of  recovery significantly decreased by 17.3% (p=0.04) and 22.0% (p<0.01), respectively. VT increased (6.6%; p=0.03) and the SJFT Index improved (p<0.001) 12% after training.


The aerobic fitness of elite judokas may be improved by adding aerobic routines to the normal training enhancing the recovery capacity.

Estrutura temporal e ações técnicas no Mundial de Karate 2012

 2014 Oct 30:1-9. [Epub ahead of print]

Time-motion, tactical and technical analysis in top-level karatekas according to gender, match outcome and weight categories.


Abstract The aim of this study was to define the time-motion (i.e., fighting, preparatory and breaking activity), technical (i.e., attack, timed-attack, counterattack, blocking and grasps) and tactical (i.e., upper limb, lower-limb, combination and throwing) profiles of the senior top-level karate competition played under the most recent rules of the International Karate Federation in relation to gender, match outcome and weight categories. Time-motion, tactical actions and technical executions were investigated of senior karatekas (n = 60) during the Karate World Championship. The referee's decisions caused an overall activity-to-break ratio of ~1:1.5 with a significant difference (P = 0.025) between karateka's weight categories (light = 1:1.5; middle = 1:2 and heavy = 1:1). High-intensity actions (i.e., attack and defensive actions performed quickly and powerfully) were higher in male compared to female athletes. Top-level karatekas used upper limb techniques more than lower limb ones, with both applied in the head more than in the body. For the high-intensity-actions to pause ratio and the percentage of combined techniques, light weight category was significantly higher than middle weight category. These findings suggest that training programs may need to be specific to the requirements of the gender and weight categories.

sexta-feira, 31 de outubro de 2014

Boxe amador: atributos físicos e fisiológicos.

Amateur Boxing: Physical and Physiological Attributes

Boxing is one of the oldest combat sports. The aim of the current review is to critically analyze the amateur boxer’s physical and physiological characteristics and to provide practical recommendations for training as well as new areas of scientific research. High-level male and female boxers show a propensity for low body fat levels. Although studies on boxer somatotypes are limited, the available information shows that elite-level male boxers are characterized by a higher proportion of mesomorphy with a well-developed muscle mass and a low body fat level. To help support the overall metabolic demands of a boxing match and to accelerate the recovery process between rounds, athletes of both sexes require a high level of cardiorespiratory fitness. International boxers show a high peak and mean anaerobic power output. Muscle strength in both the upper and lower limbs is paramount for a fighter’s victory and is one of the keys to success in boxing. As boxing punches are brief actions and very dynamic, high-level boxing performance requires well-developed muscle power in both the upper and lower limbs. Albeit limited, the available studies reveal that isometric strength is linked to high-level boxing performance. Future investigations into the physical and physiological attributes of boxers are required to enrich the current data set and to help create a suitable training program.

terça-feira, 28 de outubro de 2014

sexta-feira, 3 de outubro de 2014

Curso de Especialização "Treinamento para esportes de combate" na EEFE-USP

Data das aulas:
26 a 31/01/2015
2 a 7/02/2015
20 e 21/07/2015
22 a 25/07/2015
27 a 31/07/2015
08, 15, 22 e 29/08/2015
19 e 26/09/2015
8 a 11/12/2015
14 a 21/12/2015
18 a 20/01/2016
Disciplinas: Introdução ao curso; Aprendizagem Motora aplicada às modalidades esportivas de combate; Fisiologia das modalidades esportivas de combate; Gestão e organização aplicadas às modalidades esportivas de combate; Medidas e avaliação de lutadores; Pedagogia aplicada às modalidades esportivas de combate; Nutrição aplicada às modalidades esportivas de combate; Treinamento em longo prazo nas modalidades esportivas de combate; Biomecânica aplicada às modalidades esportivas de combate; Treinamento físico aplicado às modalidades esportivas de combate; Análise técnico-tática de lutas
Coordenação: Emerson Franchini
Vice-Coordenação: Profa. Dra. Maria Tereza Silveira Bohme
Prof. Dr. Guilherme Artioli
Profa. Dra. Flávia da Cunha Bastos
Prof. Dr. Heraldo Simões Ferreira
Profa. Dra. Daniele Detanico
Prof. Ms. Leandro Mazzei
Profa. Ms. Ursula Julio
Prof. Ms. Braulio Henrique Magnani
Prof. Marcus Agosttinho
Inscrições abertas
Informações adicionais em:

quarta-feira, 30 de julho de 2014

Perda de peso e estados psicológicos associados em atletas de judô de alto rendimento.

 2014 Jul 14. [Epub ahead of print]

Weight Loss and Psychological-Related States in High-Level Judo Athletes.



This study aimed at comparing weight loss methods [WLM] performed near competition by elite judo athletes from different age and gender groups, and relating WLM with the prevalence of eating disorders.


144 athletes (66 females and 78 males) from the Spanish judo teams participated in this observational descriptive study grouped into Cadets, Juniors and Seniors. Data were collected during previous training meetings to international tournaments. The used tools are a basic data questionnaire, State-Trait Anxiety Inventory [STAI-T], Food Craving Questionnaire-Trait [FCQ-T], Restraint Scale [RS], and Eating Attitude Test [EAT-40]. Two-way ANOVAs and Chi-Square tests were used to compare groups.


Seniors presented higher use of WLM, especially one week before competition compared to Juniors. Judoists were more involved in their diets and reduced more weight as they were older. Females were more concerned about their diets, presented higher anxiety, scored higher in the emotion scale, and more eating disorders symptomatology, although weight loss was lower. Anxiety and eating disorders symptomatology differences were more common in Juniors and Cadets, respectively, with higher scores in females.


Seniors seem to develop more effective strategies to cope with weight loss. Cadet and Junior females are more likely to suffer from the psychological-related states associated to weight loss. Implications: (1) Educational programs might help competitors and coaches to adopt and promote healthier weight loss processes, (2) special attention should be paid to female young judoists to detect eating disorders in its early stages, and (3) Judo organizations should consider implementing new rules to sanction harmful weight loss practices.

terça-feira, 8 de julho de 2014

Influência do nível de prática de karate e do sexo sobre respostas fisiológicas e perceptivas em três tipos de treinamento do karate

Montassar TabbenHelmi Chaabane, Emerson Franchini, Claire Tourny, Karim Chamari, Jeremy B Coquart
Biol Sport 2014; 31(3):201-207

terça-feira, 1 de julho de 2014

Respostas psicológicas, fisiológicas, de desempenho e perceptivas a combates de BJJ

Kinesiology, Vol.46 No.1 June 2014.

Original scientific paper
Leonardo Vidal Andreato ; Martial Arts and Combat Sports Research Group, Sport Department, School of Physical Education and Sport, University of São Paulo, Brazil 
Solange Marta Franzói de Moraes ; Exercise Physiology Laboratory, Human Physiology Department, University State of Maringá, Brazil
João Victor Del Conti Esteves ; Exercise Physiology Laboratory, Human Physiology Department, University State of Maringá, Brazil
Mário Luiz Miranda ; Martial Arts and Combat Sports Research Group, Sport Department, School of Physical Education and Sport, University of São Paulo, Brazil
Juliana Jacques Pastório ; Exercise Physiology Laboratory, Human Physiology Department, University State of Maringá, Brazil
Eloá Jacques Pastório ; Exercise Physiology Laboratory, Human Physiology Department, University State of Maringá, Brazil
Braulio Henrique Magnani Branco ; Exercise Physiology Laboratory, Human Physiology Department, University State of Maringá, Brazil
Emerson Franchini ; Martial Arts and Combat Sports Research Group, Sport Department, School of Physical Education and Sport, University of São Paulo, Brazil 
This study aimed to investigate the psychological, physiological, performance and perceptive responses to a regional level Brazilian jiu-jitsu competition. The study included 12 Brazilian jiu-jitsu athletes graded blue belt. The psychological responses were measured by the Profile of Mood States – POMS and Sport Competition Anxiety Test – SCAT. Glucose, β-hydroxybutyrate and lactate were determined from blood samples collected at rest and immediately after the fights at the earlobe. Saliva samples were also collected at rest and immediately after the fights to determine cortisol and immunoglobulin A (IgA). Maximal isometric grip strength was tested using a handgrip dynamometer, before and after the fights. Rating of perceived exertion was also assessed after the fights using the 6-20 Borg scale. The athletes were asked to indicate on an anatomical diagram of the anterior and posterior views of the body, the areas they perceived to have experienced most exertion during fights. Before the competition the athletes presented an iceberg profile of mood state and medium competitive anxiety. As a result of the fights, glucose, lactate, cortisol and IgA increased significantly. However, β-hydroxybutyrate level remained constant after the fights. Physical exertion during the match resulted in significant reductions only in the dominant handgrip strength. In addition, the athletes rated the fight as hard and very hard and indicated the forearm, wrist and frontal thigh as the principal points of fatigue. The results indicated that Brazilian jiu-jitsu fights exert a moderate demand on the glycolytic pathway, and caused significant reductions in handgrip strength.
combat sports; rating of perceived exertion; energy demands

sexta-feira, 27 de junho de 2014

Agora publicado

Journal of Strength & Conditioning Research:

Predicting Punching Acceleration From Selected Strength and Power Variables in Elite Karate Athletes: A Multiple Regression Analysis

Loturco, Irineu1,2,3; Artioli, Guilherme Giannini2,4; Kobal, Ronaldo1; Gil, Saulo1,5; Franchini, Emerson2


Abstract: Loturco, I, Artioli, GG, Kobal, R, Gil, S, and Franchini, E. Predicting punching acceleration from selected strength and power variables in elite karate athletes: A multiple regression analysis. J Strength Cond Res 28(7): 1826–1832, 2014—This study investigated the relationship between punching acceleration and selected strength and power variables in 19 professional karate athletes from the Brazilian National Team (9 men and 10 women; age, 23 ± 3 years; height, 1.71 ± 0.09 m; and body mass [BM], 67.34 ± 13.44 kg). Punching acceleration was assessed under 4 different conditions in a randomized order: (a) fixed distance aiming to attain maximum speed (FS), (b) fixed distance aiming to attain maximum impact (FI), (c) self-selected distance aiming to attain maximum speed, and (d) self-selected distance aiming to attain maximum impact. The selected strength and power variables were as follows: maximal dynamic strength in bench press and squat-machine, squat and countermovement jump height, mean propulsive power in bench throw and jump squat, and mean propulsive velocity in jump squat with 40% of BM. Upper- and lower-body power and maximal dynamic strength variables were positively correlated to punch acceleration in all conditions. Multiple regression analysis also revealed predictive variables: relative mean propulsive power in squat jump (W·kg−1), and maximal dynamic strength 1 repetition maximum in both bench press and squat-machine exercises. An impact-oriented instruction and a self-selected distance to start the movement seem to be crucial to reach the highest acceleration during punching execution. This investigation, while demonstrating strong correlations between punching acceleration and strength-power variables, also provides important information for coaches, especially for designing better training strategies to improve punching speed.

terça-feira, 24 de junho de 2014

Estrutura temporal do kickboxing

 2014 Jun 17. [Epub ahead of print]

Time motion analysis of international kickboxing competition.


The objective of the study was to analyze the time structure of high-level kickboxing matches. A total of 45 combats from two male World Championships were monitored using a time motion analysis system. The combat time structure (i.e., high-intensity activity: HIA; low-intensity activity: LIA; and referee breaks or pauses) during competition and weight divisions was determined and compared. Results indicated that the time structures were HIA: 2.2± 1.2 s; LIA: 2.3± 0.8 s; pauses: 5.4± 4.3 s; and 3.4±1.2 s between two subsequent HIA. The fighting to non-fighting ratio was found to be 1:1. Moreover, the number of HIA and LIA and the time of LIA decreased in latter rounds (e.g., the average number of HIA were 27.1±7.1, 25.1±6.6 and 24.9±6.1 respectively for round1, 2 and 3), meanwhile the time and number of pauses increased (e.g., the average pause times were 12.8±11.4, 22.3±22.6 and 24.6±23.3s respectively for round1, 2 and 3). The activity times did not differ among weight categories. The present results confirm the intermittent nature of kickboxing competition and provide coaches with more information on how to structure training sessions to mimic the physical demands in competition.

quarta-feira, 18 de junho de 2014

Disciplina de pós-graduação sobre Esportes de Combate

Aos potenciais interessados, abaixo detalhes sobre disciplina que será oferecida no programa de pós-graduação (mestrado e doutorado) da EEFE-USP. Duas vagas para alunos especiais (i.e., não vinculados ao programa). Maiores informações na secretaria de pós-graduação da EEFE-USP.
Ementa da disciplina:

segunda-feira, 2 de junho de 2014

Artigo sobre TKD

Physiological and physical profile of taekwondo athletes of different age categories during simulated combat
Tomás Herrera Valenzuela, Jorge Cancino López, Emerson Franchini, Carlos Henríquez-Olguín, Esteban Aedo Muñoz
Journal of Martial Arts Anthropology, Vol. 14, no. 2 (2014), pp. 36–40
The purpose of the present study was to compare the physiological responses and the actions performed by taekwondo athletes from three different age groups. The sample consisted of children (10.9 ± 1.6 years), cadets (14.7 ± 1.3 years) and adults (23.4 ± 3.1 years) male taekwondo athletes, who participated in simulated taekwondo competition. Higher values were found in blood lactate cadets (9.49 ± 3.52 mmol.L-1) versus children (5.87 ± 2.45 mmol.L-1; n2 = 0.274, P = 0.01), lower displacement values in adults (166.7 ± 20.2 m) versus children (225.4 ± 39.6 m, n2 =0.265, P = 0.01). Maximum speed also differed among groups (F = 3.39; P = 0.048; η2 = 0.195), with lower values for children (1.89 ± 0.22) versus adults (2.19 ± 0.34, P = 0.041) and cadets (2.16 ± 0.34, P = 0.025). For peak heart rate (HRpeak) there was an effect of group (F = 4.14; P = 0.027; η2 = 0.24) and of round (F = 10.55; P = 0.001; η2 = 0.28). Cadets had a higher HRpeak compared to adults (P = 0.025). Independently of age group, round 1 resulted in lower HRpeak compared to both rounds 2 (P = 0.004) and 3 (P < 0.001). Blood lactate, displacement, maximum speed and HRpeak differed among age groups, with no difference in acceleration and number of impacts. HRpeak and HRmean differed among rounds. The time spent during match simulated differed among HRpeak zones

terça-feira, 27 de maio de 2014

Treinamento dos judocas olímpicos

Depois de 11 anos de trabalho (2002 a 2013), finalmente o trabalho sobre a descrição do treinamento dos judocas olímpicos (de 1964 a 2008) está publicado. Conseguimos respostas de quase todos e somos muito gratos pela participação de cada um deles nessa pesquisa.
O resumo é curto pela limitação de formatação da revista, mas as 7 tabelas do artigo descrevem bem como treinaram esses atletas.
No futuro a segunda parte, sobre a estrutura que eles tiveram (ou não) para fazerem o que está nesse.

Emerson Franchini e Monica Yuri Takito. Olympic preparation in Brazilian judo athletes: Description and perceived relevance of training practices. J Strength Cond Res 28(6): 1606-1612, 201
The aim of this study was to describe the training routines used by judo athletes and their perception concerning the relevance, effort made, concentration needed, and pleasure obtained during the training sessions conducted 6 months before their Olympic participation and to compare with medal winners and other competitors in these aspects. Sixty-one Olympic Brazilian judo athletes (men = 39; women = 22), representing 66.3% of all Brazilian participants in this Olympic sport (from 1964 to 2008), including 10 medal winners (9 men and 1 woman) answered a questionnaire concerning their training routines. Mann-Whitney and Student's t-test for independent samples were used. Judo medalists and nonmedalists in the Olympic Games did not differ in: (a) the age when they started to practice and to compete in judo, (b) the age when they competed in the Olympic Games, (c) hours of training per week and per training session and the number of training sessions per day in their preparation for this event, (d) frequency and time spent for performing judo-specific and general exercises and their perceived relevance, effort, pleasure, and concentration for these activities performed during the preparation for the Olympic Games. The only differences found were the groundwork (ne-waza) randori practice, which was less frequently performed by medal winners, and perceived relevance attributed to this activity, which was considered less relevant by the medal winners compared with nonmedal winners. Thus, judo Olympic medal winners and nonmedalists did not differ in many training aspects in the final phase of their preparation to the Olympic Games.

segunda-feira, 28 de abril de 2014

Campeonato europeu e panamericano 2014

Acompanhei as competições continentais neste final de semana e fiquei me perguntando os motivos para a não transmissão do Panamericano, para a diferença de público nos eventos. Não consegui uma foto sequer do público presente no Campeonato Panamericano (seria coincidência os ângulos das fotos?
Eu mesmo produzi um "print screen" do público do Europeu.
Será que isso tem relação com a política da FIJ, CPJ, etc?

quinta-feira, 10 de abril de 2014

Comparação da estrutura temporal e de variáveis técnicas e táticas em diferentes grupos etários em lutas do judô feminino

Parabéns aos envolvidos
A comparison of time-motion and technical–tactical variables between age groups of female judo matches
Journal of Sports Sciences
Bianca Miarka, Rubiana CuryRicardo JulianettiRafael BattazzaUrsula Julio, Michel Calmet & Emerson Franchini*
The aim of the study was to verify differences between age groups of female judo matches in time-motion and technical–tactical analysis. The sample was composed of pre-cadet (13–14 years, n = 148), cadet (15–16 years, n = 228), junior (17–19 years, n = 104) and senior (>20 years, n = 237) groups. The time-motion indicators consisted of total combat time, standing combat time, displacement without contact, gripping time, total time of techniques, groundwork combat time and pause time, per match and by each combat/pause cycle. Technical and tactical variables were also collected. The one-way analysis of variance and a post hoc test were conducted, P ≤ 0.05. Cadets, with a median of 7 (2, 12), had a number of combat/pause cycles different from junior, with 3 (1, 8.5). Regarding time-motion per match and per cycle, senior had longer total combat time, standing combat time and gripping time than other groups. Senior presented lower frequency of leg techniques than pre-cadet, cadet and junior. Time-motion and technical–tactical variables effects in female judo athletes emphasise the difference between seniors and other groups.

quarta-feira, 26 de março de 2014

Crioterapia no BJJ

Influencia de la crioterapia en la expresión de marcadores de daño muscular en luchadores de jiu-jitsu después de simulación de competición: estudio cruzado
Influence of cryotherapy on muscle damage markers in jiu-jitsu fighters after competition: a cross-over study
E. A. Pinho Júnior, Ciro Brito, W. O. Costa Santos, Charles Nardelli Valido, E. Lacerda Mendes, E. Franchini
Rev Andal Med Deporte. 2014;07:7-12
Objetive. The acute effects of cryotherapy on creatine phosphokinase (CPK) and lactate dehydrogenase (LDH) expression, perceived pain and upper limb muscle strength in jiu-jitsu competitors were investigated.
Method. Ten highly trained athletes underwent two simulated competition sessions composed by four 7-minute combats with a 15-minute interval between them. Athletes were randomly allocated to receive either cold water immersion (5 ± 1 °C for 19 minutes) or no intervention (control) after competition simulation in a crossover counterbalanced fashion.
Results. For LDH, there was an effect of condition (F1,18= 7.91, P = 0.012; η2 = 0.31), with lower values being found in cryotherapy as compared to control (criotherapy = 533.2 ± 55.4 and 671.2 ± 61.0 for pre- competition and post-recuperation, respectively; control = 528.5 ± 63.7 e 759.8 ± 85.7 UI/l for pre- competition and post-recuperation, respectively). Delta CPK differed significantly between conditions (criotherapy = 138.0 ± 95.1 UI/l; control = 231.3 ± 135.8 UI/l t = -1,72; P = 0,119; effect size = 0.75). For perceived pain there was also an effect of condition (F1,18 = 12.35, P = 0.003; η2 = 0.41), with lower values being found following cryotherapy (2.4 ± 1.4 versus 4.4 ± 1.8, P = 0.003). Pre-competition skin temperature was lower than that measured after recovery (34.5 ± 1.9 oC. versus 37.6 ± 1.3 oC, P = 0.0005). There were significant correlations between perceived pain and CPK (r = 0.314) and LDH (r = 0.546). The concentrations of CPK and LDH were negatively correlated with dynamic strength (r = - 0.525).
Conclusion. Recovery via cold water immersion after simulated competition resulted in less muscle damage and hypoalgesia compared to the control.

terça-feira, 25 de março de 2014

Protocolos de progressão do treino de força para atletas de judô

Influence of linear and undulating strength periodization on physical fitness, physiological and performance responses to simulated judo matches

Franchini, Emerson; Branco, Braulio M.; Agostinho, Marcus F.; Calmet, Michel; Candau, Robin

Journal of Strength & Conditioning Research:
doi: 10.1519/JSC.0000000000000460
Published Ahead-of-Print
Collapse Box


To determine the most effective strength periodization model is important to improve judo athletes' performance. Thus, the aim of this study was to compare the effects of linear and daily undulating periodized resistance training on anthropometrical, strength and judo-specific performance. For this, 13 adult male judo athletes (LP = 6 and DUP = 7) completed a 8-week training program concomitantly to a typical judo training program. Athletes were submitted to a physical fitness test battery, before and after 8 weeks of training, consisting of: (a) maximal strength evaluation - bench press, squat and row exercises one-repetition maximum (1RM) tests, and handgrip maximal isometric strength; (b) power evaluation - standing long jump test; (c) strength endurance evaluation - dynamic and isometric chin up tests gripping the judogi; (d) anthropometry measurements - body mass, height, skinfold thickness and circumferences; (e) judo-specific fitness - performance during the Special Judo Fitness Test; (f) match simulation - three 5-min judo match simulations separated by 15-min passive recovery. Eight weeks of linear and undulating strength-training protocols induced similar significant (P < 0.05) decreases in skinfold thicknesses (-6.5%) and increases in flexed arm (2.0%) and forearm (1.8%) circumferences, maximal isometric handgrip strength (4.6% and 6.1% for right and left hands, respectively), isometric strength-endurance chin-up performance gripping the judogi (18.9%), maximal dynamic strength for row (11.5%), bench-press (11.6%) and squat exercises (7.1%), total weight lifted at 70% 1RM for bench-press (15.1%) and squat (9.6%) exercises, number of throws during sets B (3.1%) and C (9.5%) of the SJFT (resulting in increased total number of throws - 5.5%) and decreased index in this test, -4.2%). However, no changes were observed in the physiological, rating of perceived exertion or technical actions during three match simulations. Thus, it seems that the short-term adaptations were not transferable to the match condition.