Rafael Lima Kons

ORCID: 0000-0003-1615-5464
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About
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Research Areas
  • Sports Performance and Training
  • Sports injuries and prevention
  • Sport Psychology and Performance
  • Cardiovascular and exercise physiology
  • Tactile and Sensory Interactions
  • Exercise and Physiological Responses
  • Sports Dynamics and Biomechanics
  • Injury Epidemiology and Prevention
  • Muscle metabolism and nutrition
  • Muscle activation and electromyography studies
  • Genetics and Physical Performance
  • Spinal Cord Injury Research
  • Martial Arts: Techniques, Psychology, and Education
  • Sports Analytics and Performance
  • Lower Extremity Biomechanics and Pathologies
  • Body Composition Measurement Techniques
  • Cardiovascular Effects of Exercise
  • Physical Education and Training Studies
  • Ophthalmology and Visual Impairment Studies
  • Shoulder Injury and Treatment
  • Occupational Health and Performance
  • Sports and Physical Education Research
  • Thermoregulation and physiological responses
  • Physical Education and Gymnastics
  • Motivation and Self-Concept in Sports

Universidade Federal da Bahia
2022-2025

Universidade Federal de Santa Catarina
2016-2024

ORCID
2023-2024

Rafael Advanced Defense Systems (Israel)
2024

Vrije Universiteit Brussel
2023

Hospital Ana Nery
2022

Purpose: To determine the individual contributions of chronological age, somatic maturation, body size and composition, training experience as indicators performance in neuromuscular judo-specific assessments young athletes. Methods: Sixty-six youth judo athletes performed anthropometric measurements, tests-standing long jump test (SLJ), medicine ball throw (MBT), handgrip strength (HGS), tests-Special Judo Fitness (SJFT) Judogi Grip Isometric Strength Test (JGSTISO). A multiple linear...

10.1080/02701367.2019.1679334 article EN Research Quarterly for Exercise and Sport 2020-01-06

This study analyzed the relationship between generic and judo-specific physical test performances technical-tactical competition among 19 female judo athletes. Participant data were gathered in two stages: (a) tests-countermovement jump (CMJ), handgrip strength, Special Judo Fitness Test Judogi Grip Strength Test; (b) match recorded for analysis. Pearson's linear correlation multiple regression analysis showed no significant correlations any parameter tests. However, number of attacks during...

10.1177/0031512518777586 article EN Perceptual and Motor Skills 2018-05-22

Kons, RL, Ache-Dias, J, Detanico, D, Barth, and Dal Pupo, J. Is vertical jump height an indicator of athletes' power output in different sports modalities? J Strength Cond Res 32(3): 708-715, 2018-This study aimed to identify whether the ratio standard is adequate for scaling peak (PPO) body mass (BM) athletes verify classification agreement involved using PPO scaled BM (JH). One hundred twenty-four male divided into 3 groups-combat sports, team runners-participated this study. Participants...

10.1519/jsc.0000000000001817 article EN The Journal of Strength and Conditioning Research 2017-02-10

This study aimed to investigate the relationship between physical performance and attack attempts effectiveness in official judo matches with different durations. Thirty-eight athletes participated this performed countermovement jump (CMJ), handgrip strength test (HGS), Judogi Grip Strength Test (JGST) Special Judo Fitness (SJFT). Official were filmed for technical-tactical analysis. The key results showed that male exhibited higher CMJ HGS than female group (p < 0.05). number of attacks was...

10.1080/24748668.2018.1545198 article EN International Journal of Performance Analysis in Sport 2018-11-02

This study aimed to analyse the effects of a simulated Brazilian jiu-jitsu (BJJ) tournament on vertical jump performance, grip strength test and perceived effort responses. 22 male BJJ athletes participated in consisting three 7 min matches separated by 14 rest. Kimono (KGST), counter movement (CMJ) rate exertion (RPE) were measured before after each match, while RPE specific areas was assessed matches. ANOVA for repeated measures used compare parameters match with level significance set at...

10.1080/14763141.2016.1206143 article EN Sports Biomechanics 2016-07-20

This study aimed to verify the effect of judo matches on handgrip strength and perceptual responses during an official tournament in medalists nonmedalists. Thirty-four male athletes participated tournament. Before first match immediately after each match, maximum isometric rate perceived exertion overall specific areas were assessed. Analysis variance for repeated measures was used compare variables before t-test nonmedalists with level significance set at 5%. Also, size (ES) analysis used....

10.12965/jer.1835156.578 article EN cc-by-nc Journal of Exercise Rehabilitation 2018-02-26

Background: The present study investigated highly trained male judo athletes and how a 5% body mass dehydration affects their judo-specific performance physiological responses. Methods: Nine international-level who are weight-cyclers voluntarily participated in the study. had controlled crossover design nature. Athletes completed three sessions, including familiarisation session two experimental sessions (dehydration (DEHY) control (CON)) with tests, maximal handgrip strength test (HGS),...

10.3390/biology11060872 article EN cc-by Biology 2022-06-06

This study investigated how the time of day affects physical performance and perceptual responses in Brazilian Jiu-Jitsu (BJJ) athletes. Given significance circadian rhythms on athletic capabilities, we aimed to determine whether variations occur across different times (morning, 10:00–11:00h; afternoon, 14:00–15:00h; evening, 18:00–19:00h) if these effects differ by sex. In total, 23 BJJ athletes (9 females, 14 males) participated this study. The performed tests including maximal isometric...

10.1080/07420528.2025.2453235 article EN Chronobiology International 2025-01-11

This study investigates the influence of early competition exposure on performance junior judo athletes in senior-level World Championships and Olympic Games. Specifically, we examine relationship between participation different types senior international competitions—Continental Championships, Grand Prix (GP), Slam (GS)—during years subsequent success at major events. Data from 3560 were analyzed to assess impact number competitions participated timing these events relative transition...

10.1177/17479541251319441 article EN International Journal of Sports Science & Coaching 2025-02-20

The present study investigated the effect of inter-limb asymmetry and bilateral indexes (BLIs) in power performance, assessed by squat jump (SJ) countermovement (CMJ), on sport-specific anaerobic performance. Forty-eight taekwondo athletes (24 males 24 females; mean ± SD, age: 19.8 2.1 years) performed randomly, separate sessions, SJ CMJ tests using right, left, both legs to determine BLI, 10 s Frequency Speed Kick Test (FSKT10s), its multiple version (FSKTmult). FSKT10s was positively...

10.3390/sports13040103 article EN cc-by Sports 2025-03-28

Introduction This study aims to 1) examine the difference and asymmetry in change of direction shuffle movement (CoDS) performance among basketball players; 2) assess relationship directional agreement between scores CoDS, 505, four single leg jump tests. Methods Forty-two college players performed three trials CoDS 505 tests for each leg, with fastest used final analysis. Single countermovement jumps, lateral broad drop jumps were also both legs. The dominant (D) limb was defined as side...

10.3389/fphys.2025.1587719 article EN cc-by Frontiers in Physiology 2025-04-30

In order to optimize body composition and its components, it is of interest analyze inter-limb asymmetries in athletes popular combat sports such as Brazilian Jiu-Jitsu (BJJ). This study aimed assess the magnitude direction asymmetry competitive male BJJ athletes. Seventeen experienced (age 34.59 ± 8.00 years, 172.94 5.46 cm, experience 7.88 5.57 3.71 1.05 days weekly volume training), including Guard Fighters (n = 7) Pass 10), participated this study. a single session, whole-body segmental...

10.3390/sports13020054 article EN cc-by Sports 2025-02-12

Context : Investigating parameters related to physical capacities, muscular imbalance between the limbs, and injury reports in judo athletes with vision impairments (VI) is something extremely relevant for competitive performance, especially considering absence of vision, which can be a determining factor these aspects. For this, this study aimed explore interlimb asymmetry bilateral strength index upper lower limbs VI describe association imbalance. Design A cross-sectional study. Methods...

10.1123/jsr.2024-0063 article EN Journal of Sport Rehabilitation 2025-01-01

Judo performance is inherently complex due to the dynamic interplay of various factors influencing technique execution. This retrospective cohort study examined data on technical-tactical judo athletes with visual impairments across four Paralympic cycles (London 2012, Rio 2016, Tokyo 2020+1, and Paris 2024), categorized by sex (male female), using a motor-technical classification system. Data from 718 matches 1,028 technical performances were analyzed. The association between group...

10.18002/rama.v20i1.2507 article EN cc-by-nc-sa Revista de artes marciales asiáticas 2025-05-04

Abstract Weldon, A, Cloak, R, Kirk, C, Ruddock, Langan-Evans, Detanico, D, Loturco, I, and Kons, R. Strength conditioning (S&amp;C) practices of judo athletes S&amp;C coaches: A survey-based investigation. J Cond Res 38(4): e160–e173, 2024—The benefits strength for improving performance reducing injuries have been widely studied. However, the used perspectives held by those delivering yet to be elucidated. Therefore, this study investigated judokas coaches working within judo. Forty-two 9...

10.1519/jsc.0000000000004673 article EN The Journal of Strength and Conditioning Research 2024-03-21

In judo competition for visual impairment, athletes of different classes compete against each other in the same category; B1 are totally blind, whereas B2 and B3 partially sighted. To test potential disparities due a single category athletes, this study aimed to compare competitive technical-tactical performance visually impaired with degrees impairment. The authors analyzed 340 matches from 2012 2016 Paralympic Games. scores, penalties, efficiency index, types medals were examined, as well...

10.1123/apaq.2018-0181 article EN Adapted Physical Activity Quarterly 2019-06-03

This study aimed to describe the bilateral deficit (BLD) during countermovement jump (CMJ) in judo athletes and determine relationship between BLD judo-specific performance. Fourteen male participated. Athletes performed three specific tests, Maximal Sprint Speed Judo Test, Aerobic Test Special Fitness (SJFT), double- single-leg CMJ. The following CMJ variables were used: height (JH), mean (MPO) peak (PPO) power output, force (PF), velocity (PV) impulse (IMP). Pearson's or Spearman's test...

10.1080/15438627.2021.2024542 article EN Research in Sports Medicine 2022-01-05
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