Emerson Franchini

Emerson Franchini
University of São Paulo | USP

PhD

About

554
Publications
604,174
Reads
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14,711
Citations
Citations since 2016
272 Research Items
11324 Citations
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Introduction
I have been investigating combat sports since 1995. My main focus is on physiological responses to combat sport-specific actions, sport-specific test development, training monitoring, training methods, and time-motion analysis. Currently positioned among the top 2% Sport Sciences researchers considering the c-score (https://data.mendeley.com/public-files/datasets/btchxktzyw/files/d1a08dbe-1a4d-4d9f-942e-5a78bc7afde5/file_downloaded). Looking for a center interested in this area of investigation.
Additional affiliations
November 2006 - present
University of São Paulo
Position
  • Professor (Associate)
November 2006 - June 2015
Escola De Educação Física E Esporte - USP
Position
  • Professor (Associate)

Publications

Publications (554)
Article
Abstract Objective This study was conducted to investigate the performance difference for current World (Junior and Senior) and Paralympic (Senior) record holders according to origin of impairment (acquired or congenital), level of competition and sex, and described the performance progression of Paralympic Powerlifting records holders. Design Th...
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Purpose: To investigate differences in athletes' knowledge, beliefs, and training practices during COVID-19 lockdowns with reference to sport classification and sex. This work extends an initial descriptive evaluation focusing on athlete classification. Methods: Athletes (12,526; 66% male; 142 countries) completed an online survey (May-July 2020...
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This study aimed to analyze the distribution of judo matches in the Tokyo 2020 Olympic Games considering matches in the regular duration (≤4 min) and during the extra time (golden score) according to match duration, sex, scores, penalties, phases of competition, weight categories and judo techniques. The data were extracted from the Official Result...
Article
PurposeIn judo, athletes compete based on weight categories, which are required to adapt the training process accordingly, but not enough research is present to understand their particularities. The present study aimed to verify the differences in judo attack systems performed between the seven male weight categories in world-class athletes.Methods...
Article
Problem and aim. Judo is one of the most popular combat sports in the world. An evaluation of the presence of scientific knowledge , for example, using the Sport Policy Factors Leading to International Sporting Success (SPLISS) model, is necessary to develop high-performance sport. The objective of this work was to map the scientific articles on ju...
Article
Objectives.-Although there are numerous studies related to effect of ischemic preconditioning on performance, there is a lack of studies demonstrating the effect of ischemic preconditioning on sport specific performance and recovery. Thus, this study aimed to demonstrate the effects of ischemic preconditioning on judo-specific performance and recov...
Article
This study aimed to identify the technical-tactical variation through the index of performance and types of techniques in high-level judo in the 2020 Olympic Games. The data were extracted from the Official Results Books considering the competition performance of 393 competitors. Nage-waza katame-waza and scoring index, and the classification of te...
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The long-term impact of weight cycling on health status, eating habits, physical activity, and the lifestyle of former combat sports athletes is still insufficiently explored. Therefore, a novel questionnaire in English, Portuguese, Spanish and Croatian language was constructed. To determine the reliability and the content/face validity, a total of...
Article
Purpose: This study investigated the test-retest reliability and discriminant validity of the Kickboxing Anaerobic Speed Test (KAST) and established a comparison with the maximal cycling sprint test (MCST). Methods: Forty-two male kickboxing athletes (18 elite and 24 sub-elite) participated in this study. Kickboxers performed the tests in both sing...
Article
Purpose: This study investigated the effects of time-of-day on judo athletes’ performances and the associated psychological variables and perceived exertion following judo-specific tests. Methods: Twelve male judo athletes (age: 16 ± 1 years) performed in a randomized and counterbalanced order the special judo fitness test (SJFT), the judo physical...
Article
Introduction: The Brazilian Air Force (BAF) personnel must be prepared to perform their professional activities under the worst conditions. This preparation goes beyond habits of practicing physical activity, since it is necessary to perform specific physical tasks, referred to as "combat tasks" (CTs). This study aimed to investigate a combination...
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Purpose This study aimed to verify the body mass (BM) gain between individual and the judo mixed team (JMT) weigh-ins (2–7 days) and its impact on performance during the Tokyo 2020 Olympics. Methods A total of 105 athletes composed JMTs, but only 68 competed: 39 were from lighter weight categories than JMT ones (i.e., ≤ 57 kg and ≤ 70 kg for femal...
Article
In judo matches, athletes perform different technical-tactical actions according to age, sex, and competitive level. To identify these differences, the Judo Attack System Software (JASS) was developed specifically to assess the combat attack system, consisting of the tori (athlete executing the action) and uke (athlete receiving the action) approac...
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Background. Several factors including gender, influence the development of expert coaches. The developmental trajectory of women coaches may present specific issues compared with those of men, such as: the few opportunities offered to women coaches, the predominance of men in management positions, and lower salaries. In the Brazilian context from 1...
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The present study aimed to propose a new multidimensional taekwondo-specific test to estimate aerobic power, anaerobic fitness, and agility. Out of sixty-five male volunteers, forty-six, forty-eight, and fifty athletes (18-35 years; black-and red-belt level) were included in the final analysis for aerobic, anaerobic, and agility assessments, respec...
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This study investigated the combined effects of competition area (4 × 4, 6 × 6, and 8 × 8 m) and judo-specific training type (tachi-waza, ne-waza, and free randori) on physiological responses and perceived exertion in female judo athletes. In a within-subject design, 12 female subelite and elite athletes who competed at regional or national levels...
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The study assessed conditioning activities’ (CAs’) effects involving different work-to-rest ratios (WRR) on taekwondo athletes’ physical performance. Adolescent taekwondo athletes (age: 16 ± 1 years) randomly participated in the control six experimental conditions. Each condition was composed of standard warm-up and CA composed of plyometrics (P) o...
Article
PurposeWe quantified the chronological age and performance of Paralympic powerlifters competing at the elite level in the World Championships (WC) and Paralympic Games (PG), and examined the age-related differences between sexes, weight categories, and competition achievements.Methods This was a retrospective study involving 3107 athletes who took...
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This study investigated low-dose caffeine ingestion, conditioning activity (CA) effects on psycho-physical performances in young taekwondo athletes. In a randomized, double-blind, counterbalanced, crossover design, 20 athletes (10 males; 17.5 0.7 yrs) performed taekwondo specific agility test (TSAT), 10 s/multiple frequency speed of kick test (FSKT...
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In judo combat, the grip (kumi-kata) helps to control and to dominate the opponent, and per the current rules is a prerequisite to executing a throwing technique. In this scoping review, articles and reviews published in scientific journals in English were searched in Web of Science, Scopus, PubMed and SPORTDiscus databases from inception until Dec...
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Background: To handle the competition demands, sparring drills are used for specific technical-tactical training as well as physical-physiological conditioning in combat sports. While the effects of different area sizes and number of within-round sparring partners on physiological and perceptive responses in combats sports were examined in previou...
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Background: To handle the competition demands, sparring drills are used for specific technical–tactical training as well as physical–physiological conditioning in combat sports. While the effects of different area sizes and number of within-round sparring partners on physiological and perceptive responses in combats sports were examined in previous...
Article
To determine the optimal interval between competitions for success in World Para Powerlifting events. A total of 1,034 female (age: 34.4 ± 9.1 years) and 1,697 male (age: 33.7 ± 8.3 years) competition results from international Paralympic powerlifting events conducted between 2014 and 2020 were analyzed. Odds ratios for preparations intervals betwe...
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This study investigated the effects of intensified training and tapering periods using different exercise modalities on judo athletes’ physical fitness. Fifty-nine adolescent male and female judo athletes (age 15 ± 1 years) were randomly assigned to one of three experimental groups or one control group (CG). Experimental groups (kumi-kata [KG], uch...
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Objectives: Explore training-related knowledge, beliefs and practices of athletes and the influence of COVID-19-related lockdowns. Methods: Athletes [n = 12,526 classified: world-class (13%), international (21%), national (36%), state (24%), and recreational (6%)] completed an online survey (50 d; 17th May to 5th July 2020) exploring their trainin...
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Although current physical activity (PA) guidelines regarding aerobic and anaerobic training are helpful for the population at large, many individuals prefer to engage in alternative forms of PA such as combat sports. As both a martial art and sport, judo is a physically demanding form of PA that potentially offers a novel experience, consequently l...
Article
The present systematic review and meta-analysis aimed to compare the impact of exercise intensity and mode (high-intensity interval exercise-HIIE or sprint interval exercise-SIE versus moderate-intensity continuous exercise-MICE) on post-exercise ad libitum energy intake. The studies were required to have at least two exercise conditions (HIIE or S...
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Studies have shown that nitrate (NO3 −)-rich beetroot juice (BJ) supplementation improves endurance and high-intensity intermittent exercise. The dose-response effects on taekwondo following BJ supplementation are yet to be determined. This study aimed to investigate two acute doses of 400 mg of NO3 − (BJ-400) and 800 mg of NO3 − (BJ-800) on taekwo...
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Purpose: The aim of this study was to verify the effects of internal and external focus of attention, and a control condition on the performance, physiological and perceptive responses in a judo-specific all-out interval protocols. Methods: Fifteen male judo athletes participated of this study and performed two judo-specific protocols: maximal velo...
Article
This review analyzes relevant variables involved in acute interference effects of concurrent training (CT) sessions of aerobic exercise followed by strength exercises. The aerobic exercise intensity, mode, volume, duration of recovery interval between exercises, muscle groups involved, and utilization of ergogenic aids are the variables identified...
Article
This study aimed to determine the relationship between indirect measures of aerobic power and muscular power with Frequency Speed of Kick Test performance using multiple sets (FSKTmult) in high-level taekwondo athletes. We used a known-group method to test differences in FSKTmult performance between two groups designated as lower and higher perform...
Preprint
Studies have shown that Nitrate (NO3-) rich beetroot juice (BJ) supplementation improves endurance and high-intensity intermittent exercise. The dose-response effect on taekwondo of BJ supplementation are yet to be determined. This study aimed to investigate two acute doses of 400 mg of NO3-(BJ-400) and (800 mg NO3- (BJ-800) on taekwondo-specific p...
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Thirty male senior kata athletes representing the karate styles Shotokan (n=10), Gojuryu (n=10) and Shitoryu (n=10), were recruited to verify their neuromuscular response to a simulated competition comprised of five different successive kata. They executed the medicine ball throw test and the countermovement jump test in two days, a control and a k...
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Citation: Herrera-Valenzuela, T.; Carter, J.; Leiva, E.; Valdés-Badilla, P.; Ojeda-Aravena, A.; Franchini, E. The present study investigated the effect of an additional short-duration HIIT program using boxing-specific techniques on activity during a simulated competition. Additionally, we in- vestigated the impact on physical fitness, specifically...
Article
This study aimed to determine which attack systems resulted in higher effectiveness in judo combats. We examined 5847 attacks from 152 high-level international male medallist athletes. Both successful (score) and unsuccessful attacks (no-score) were comprehensively analysed including six variables per action: attacker/defender approach, grip, stanc...
Article
Objective The purpose of this study was to analyze the effects of self-selected and randomly selected music on perceptual and performance responses during a sprint interval training (SIT) session. Equipment and Methods 16 physically active males (M age = 27.0, SD = 3.9 years; M body mass = 78.1, SD = 9.6 kg; M height = 1.77, SD = 0.05 meters) perf...
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Study aim : Martial arts and combat sports have been an alternative for individuals seeking the health benefits of physical activity and exercise, but little is known about its practitioners’ quality of life. Therefore, this study aimed to investigate the quality of life of practitioners of five of the most common modalities in Brazil. Material and...
Article
This study aimed to test the reliability, sensitivity, construct and logical validity of an adapted Special Judo Fitness Test (SJFT) for judo athletes with visual impairment . Twenty judo athletes with visual impairments performed both the adapted SJFT with tactile and sonorous stimuli (experimental conditions) and the typically administered SJFT (...
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Background: The Physical Activity Readiness Questionnaire for Everyone (PAR-Q+) is the international standard for pre-participation risk stratification and screening. In order to provide a practical and valid screening tool to facilitate safe engagement in physical activity and fitness assessments for the Brazilian population, this study aimed to t...
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Background Carbohydrate (CHO) ingestion enhances exercise performance; however, the efficacy of CHO intake on repeated bouts of exercise simulating a taekwondo tournament is unknown. Therefore, the purpose was to compare the effects of two different doses of CHO on a sports-specific kicking test during a simulated taekwondo tournament compared to p...
Article
This study aimed to describe the frequency of video review (VR) used during international judo matches. The duration and time of VR occurrence and the effect of VR on subsequent referee’s decisions and match outcomes were investigated. Video recordings from the matches in which the VR was used in the 2020 Grand Slams (n = 122) were analysed. The ma...
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The aim of this study was to examine changes in body mass (BM) and power-related measures in Olympic boxers during an official qualifying boxing tournament. Fourteen elite amateur boxers from the Brazilian National Team (eight men and six women) participated in this study. Athletes performed three fights in four days against the same opponent of th...
Article
Given humans’ limited ability to recall past experiences for evaluation, scholars have proposed the peak-end rule stating that if perceived discomfort at the end of an aversive experience is lower than the peak discomfort experienced, the aversive experience will be remembered more positively. The purpose of this study was to evaluate the peak-end...
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It is well known that different factors can contribute to muscle damage in judo matches or training. Previous research analyzed only the effects of simulated judo combat or judo training on biochemical markers of muscle damage without determining its specific causes. Our objective was to identify possible differences in biochemical markers of muscu...
Article
This study aimed to examine the effect of intense intermittent lower-body and trunk exercise (rowing) on punching performance in 28 highly-trained male amateur boxers. Straight- and bent-arm punch performances were assessed with a custom-built punch integrator using a 3-min maximal-effort punch test, completed in both non-fatigued (ROWpre) and fati...
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Judo is characterised by high-intensity actions (e.g., attacks, defensive actions and counter-attacks, in both standing and ground positions), interspersed with low-intensity actions (e.g., displacement without contact) or pause (e.g., referee stoppage), resulting in an intermittent activity. Thus, high-intensity interval training (HIIT) is part of...
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This study investigated the effect of area sizes (4 × 4, 6 × 6, and 8 × 8 m) and effort-pause ratios (free combat vs. 1:2) variation on the physiological and perceptive responses during taekwondo combats (Study 1). In a second study, the effects on physical performance of 8 weeks of small combat-based training added to regular taekwondo training we...
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Background/Objective This study aims to compare the effect of sprint distance and repetition number on performance, physiological responses, and energy systems contributions. Methods Eighteen male university league soccer players (age: 19.9±1.6 years, height: 177.9±4.7 cm, body mass: 72.4±6.3 kg, percentage body fat: 8.9±1.8, training experience:...
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Background. The ranking system can be considered a measure of athletes' performance. In addition, countries with high performance are expected to have better athletes. Problem and Aim. The present study aimed to verify whether ranking scores and country performance by competitors differ between winners and losers; and whether ranking scores and cou...
Article
PurposeThis study aimed to describe self-selected intensity and its relationship to performance during a high-intensity all-out judo protocol, and to verify whether athletes with different anaerobic speed reserve (ASR) perform differently during a high-intensity all-out interval uchi-komi (judo-specific skill).Methods We analyzed the performance of...
Chapter
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p>This chapter deals with historical aspects of strength training, contextualizing the relevance of strength training for combat sports to maximize the performance of grapplers, strikers, and mixed martial artists. Scientific articles were listed that presented data related to maximum strength in the leading research databases. Scientific evidence...
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This chapter describes the physiological responses associated with anaerobic power and capacity of combat sports athletes from different modalities (judo, Brazilian jiujitsu , wrestling, Olympic boxing, karate, and Muay Thai) during specific situations. Next, the most used evaluation methods for the control and monitoring of these variables are pre...
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The range of motion of a joint is extremely important in combat sports, especially when there is a need to execute a certain motor gesture with maximum range of movement, as in throwing techniques such as uchi-mata in judo, certain types of guards in Brazilian jiujitsu or the high kicks common in a variety of striking combat sports. Therefore, in t...
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Volume 16(1s) ~ 2021 ~ DOI: 10.18002/rama.v16i1s.7000 Strength and conditioning for combat sports athletes Abstract This chapter describes the physiological responses associated with aerobic power and capacity of combat sports athletes from different modalities (judo, Brazilian jiuJitsu , wrestling, Olympic boxing, taekwondo, karate and muay-thai)...
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In combat sports, the specificity of the training requires that the athlete improve all performance indicators associated with the match. For this reason, muscle power seems to be determinant during the application of the techniques that result in scores, specifically punches, kicks, elbows, knees, throwing techniques, transitions to the groundwork...
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Strength-endurance is one of the trainable physical capacities that could determine the success in some combat sports and its inclusion is obligatory in the training periodization of high-level athletes. In striking combat sports, such as boxing and taekwondo, it seems likely that increases in dynamic strength-endurance improve the ability to execu...
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Editors • Emerson Franchini – University of São Paulo, São Paulo (Brazil) • Tomás Herrera-Valenzuela – Universidad de Santiago de Chile (Chile) Authors • Ursula Ferreira Julio – University of São Paulo, São Paulo (Brazil) • Emerson Franchini – University of São Paulo, São Paulo (Brazil) • Tomás Herrera-Valenzuela – Universidad de Santiago de Chile...
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Volume 16(1s) ~ 2021 ~ DOI: 10.18002/rama.v16i1s Strength and conditioning for combat sports athletes
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The Judo World Ranking List has been used to assess its predictive power regarding athletic performance. The aim of this study was to check if the ranking difference among athletes in the individual rankings could be used as a predictor for the outcome of mixed teams judo competition. We sought to verify the association between the variable "rank d...
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p>The Judo World Ranking List has been used to assess its predictive power regarding athletic performance. The aim of this study was to check if the ranking difference among athletes in the individual rankings could be used as a predictor for the outcome of mixed teams judo competition. We sought to verify the association between the variable “rank...
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Extraverts are active and talkative, while introverts are quiet and calm. This difference has been attributed to the cortical activation level (arousal), which is low in extraverts and high in introverts. Thus, to reach an optimal level of arousal, extraverts seek stimulation and introverts avoid it. As caffeine increases arousal levels, our primar...
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The main objective of the present study was to determine whether variation in gripping action, actions before attacking, throwing techniques, direction of attack, transition from standing to groundwork combat, and groundwork techniques varied between male and female judo athletes and between gold, silver and bronze medalists in judo World Champions...