Jiu jitsu

A pneumothorax is a medical condition characterized by the presence of free air in the pleural cavity. Pneumothorax can be classified as spontaneous, traumatic, or iatrogenic. Spontaneous pneumothorax sustained from a jiu-jitsu-induced blunt trauma has not been described in any sports literature. This case report involves a 26-year-old male athlete who presented to the emergency room complaining of right-sided chest pain in the recumbent position and shortness of breath upon exertion. Breath sounds were diminished on the right with hyper resonance to percussion...

Successful performance in grappling combat sports (GCS) can be influenced by the fighter's capacity to sustain high-intensity contractions of the handgrip muscles during combat. This study investigated the influence of GCS experience on the critical torque (CT), impulse above CT (W'), tolerance, and neuromuscular fatigue development during severe-intensity handgrip exercise by comparing fighters and untrained individuals. Eleven GCS fighters and twelve untrained individuals participated in three experimental sessions for handgrip muscles: (1) familiarization with the experimental procedures and strength assessment; (2) an all-out test to determine CT and W'; and (3) intermittent exercise performed in the severe-intensity domain (CT + 15%) until task failure...

OBJECTIVE: The purpose of this case report is to describe the conservative chiropractic management of a patient with a suspected triangular fibrocartilage complex (TFCC) injury. CLINICAL PRESENTATION: A 36-year-old Brazilian Jiu-Jitsu black belt athlete sought care for left-sided diffuse ulnar pain (numeric pain scale 5/10) with a notable bump over the ulna and weakness when grappling. A working diagnosis of suspected TFCC injury was made. INTERVENTION AND OUTCOME: The patient was treated with forearm and grip strength exercises to rehabilitate the pain and strength loss...

Tandem occlusions of the anterior circulation refer to the simultaneous presence of a cervical carotid artery occlusion or high-grade stenosis and an ipsilateral large vessel occlusion involving the intracranial internal carotid artery, M1 or proximal M2 middle cerebral artery. Whilst carotid occlusion usually results from progressive atherosclerotic disease, in younger individuals it may arise secondary to a dissection for which there are multiple aetiologies, with trauma being an important cause in patients having a relevant history...

OBJECTIVE: To assess the epidemiological profile of Jiu-Jitsu black belt athletes, including the prevalence of pain and shoulder function. METHODS: Cross-sectional study carried out with Jiu-Jitsu athletes from 2014 to 2016. The studied variables were: sex, age, dominant limb, weight, height, profession, time of Jiu-Jitsu practice, weekly training hours, other practiced sports, comorbidities, injuries and previous surgeries, medications and habits. For the functional assessment of the shoulder, the ASES Score was used...

INTRODUCTION: With the advent of mixed martial arts (MMA) growing in popularity, there has been a described increase in its participation. The term MMA generally describes the hybridization of combat disciplines including but not limited to: karate, judo, jiu-jitsu, wrestling, taekwondo, boxing, kickboxing, and Muay Thai. With increased participation in MMA and martial arts, differing physical demands are placed on participants. Due to the physical nature of combat sports, there are injuries associated with participation...

The use of strength training is important for athletes in combat sports such as judo and jiu-jitsu. Specificity is key when prescribing strength training programs for athletes, considering maximal strength, muscular power and strength-endurance. Grappling combat sports require grip control, which is necessary to execute throwing techniques and groundwork. The aim of this study was to verify the bilateral strength deficit in general and in grappling combat sport-specific action in the control group and grapplers...

Combat sports, such as Brazilian Jiu Jitsu (BJJ), require intense physical, mental, and emotional tasking within its training. With the degree of difficulty ingrained within the sport, many participants that once were intrigued by the sport may lose this interest and enjoyment if their goals are not met. The purpose of this study was to examine the relative strength of sport motivations among BJJ players. Participants included 228 BJJ athletes varying in levels of sport participation experience. Grounded in Self-Determination Theory, participants were assessed on five motives for sport participation including: fitness, appearance, competence, social, and interest/enjoyment...

Vertical patella dislocation or "dorsal fin patella" is a rare but potentially debilitating orthopedic condition characterized by the displacement of the kneecap in a vertical direction. It occurs when the patella moves out of its normal position within the trochlear groove of the femur, rotating along its vertical axis resulting in the articular surface facing either medially or laterally. The mechanism of injury is primarily through axial rotation injury at the knee but could also occur secondary to a medial or lateral trauma to the patella...

Laterality is considered relevant to performance in combat sports with particular emphasis being placed on fighters' handedness and combat stance. Such approach, however, may fall too short to understand the role of laterality in sports where fighters are allowed to use their hands and feet standing and on the ground. Here, we referred to grappling sports (i) to estimate lateral preferences in selected combat situations and (ii) to test for an association between those preferences and common measures of hand and foot preference...

Knowledge of the number of fibres transferred during a particular activity is essential for the interpretation of findings in similar criminal cases. In this regard, violent contacts and physical assaults still present a challenge, due to a lack of robust published data. Hereby, we present the outcome of an empirical study where different assault activities were simulated by a Jiu Jitsu team and participants were asked to play either the role of an aggressive 'assailant' or a defensive 'victim', wearing cotton garments (i...

INTRODUCTION: Brazilian jiu-jitsu (BJJ) was conceived to be an oppositional sociomotor practice with an emphasis on self-defense, but throughout the 20th century, BJJ gained sporting features, modifying its internal logic (IL). In BJJ, the richness of the motor itineraries can be revealed in the different sociomotor sub-roles. Considering the absence of research that identifies and describes the sub-roles and the Ludogram of BJJ, the following question was asked: how can the Ludogram of sociomotor sub-roles of Brazilian jiu-jitsu be systematized in accordance with its internal logic? METHODS: This work is characterized as theoretical research that is dedicated to rebuilding theories and concepts with a view, in immediate terms, to improving theoretical foundations...

Our fundamental understanding of fibre transfer remains based on early seminal transfer studies that were largely mechanical simulations. However, transfer events in the real world are uncontrolled in nature. This study takes a novel approach to address this discrepancy, with skilled jiu-jitsu practitioners performing a choreographed 'standard' assault scenario to investigate the transfer of fibres between a cotton T-shirt and cotton/polyester hoody. Garments were collected immediately after the scenario and examined for the number, length and zonal distribution of transferred fibres...

The current study aimed to analyze the psychological alterations resulting from rapid weight loss in the mood states and burnout of male Brazilian jiu-jitsu athletes. For the purpose of this study, 31 Brazilian jiu-jitsu athletes participated, divided into two groups (RWLG: rapid weight loss group and CG: control group). Data collections were performed at three moments (1: baseline, before weight loss; 2: weigh-in, during the official competition; and 3: recovery, 7 to 10 days after the competition), with application of the Brunel Mood Scale (BRUMS) and Athlete Burnout Questionnaire (ABQ)...

BACKGROUND: Brazilian jiu-jitsu (BJJ) is a martial art that focuses on ground combat, emphasizing skill over strength and submission over striking. The purpose of this study is to evaluate the nature of injuries affecting practitioners of BJJ in the settings of competition, training, and conditioning. METHODS: An online survey was created to collect demographic and injury-specific information. This survey was distributed to the 234 schools in the United States registered with the International Brazilian Jiu-Jitsu Federation (IBJJF)...

[This corrects the article DOI: 10.3389/fpsyg.2023.1048642.].

OBJECTIVE: Evaluate injury trends in Brazilian Jiu Jitsu (BJJ) participation presenting to U.S. emergency departments over a 10 year period and formulate an injury profile. METHODS: The U.S. Consumer Product Safety Commission's (CPSC) National Electronic Injury Surveillance System (NEISS) database was queried for martial arts related injuries from January 1, 2012 to December 31, 2021. Codes, and narratives were examined to compile data for patients sustaining BJJ related injuries...

Coaches and psychologists can use time-motion analysis to elaborate specific interventions for female BJJ athletes, increasing specific training context and reducing unnecessary psychological and physical demands and injuries. Therefore, the present study aimed to analyze high-level BJJ female athletes in the 2020 Pan-American Games by comparing the weight categories on the time-motion analysis. The time-motion analysis (i.e., approach, gripping, attack, defensive actions, transition, mounting, guard, side control, and submissions) of 422 high-level female BJJ combats was divided and compared by weight category as follows: Rooster ( n  = 8), Light Feather ( n  = 18), Feather ( n  = 122), Light ( n  = 84), Middle ( n  = 74), Medium Heavy ( n  = 44), Heavy ( n  = 36), Super Heavy ( n  = 36), using p  ≤ 0...

To examine relationships between Brazilian Jiu Jitsu (BJJ) descriptors (belt rank, experience, gi preference, and fighting style), resistance training (RT) experience, and measures of body composition, strength (maximal handgrip, 3-5-repetition maximum [RM] in barbell glute bridge [GB], prone bench row [PBR], and bench press [BP]), and velocity (GB, PBR, and BP at 7 kg and 30-60% 1-RM), 13 experienced (4.3 ± 3.4 years) BJJ athletes were recruited for this cross-sectional, pilot study. Significant ( p < 0...

BACKGROUND: Body weight is an important aspect in the development of components of physical fitness that can affect athletic performance. The purpose of this study was to examine the differences in body balance of Brazilian Jiu-Jitsu (BJJ) athletes according to body mass classification: underweight/normal weight (UW/NW); overweight/obese (OW/OB). MATERIAL AND METHODS: The study was conducted among 69 BJJ athletes (age 23.26 ± 3.53) and 93 non-practicing adults (age 21...