Biomecânica e Traumatologia do Boxe

Amateur boxing practiced at the Olympic Games has been evolving in conditions of safety for its athletes. The most common injuries are head wounds and lacerations, brain concussions and fractures. However, professional boxing has not kept up with this trend of revising rules and promoting greater safety, turning their athletes prone to severe injuries, especially head and neck injuries. The knowledge of epidemiology and biomechanics of boxing injuries may allow athletes and coaches to anticipate injuries and adopt effective prevention strategies.

The association between competitor level and the physical preparation practices of amateur boxers

Physical training, testing, and monitoring are three key constitutes of athlete physical performance; however, there is a currently a lack of information on the prevalence of such methods in amateur boxing. This study aimed to explore the physical preparation practices of senior elite (SEB) and senior development (SDB) amateur boxers, and to determine whether these practices were discriminated by competitor level. One hundred and one amateur boxers (SEB n = 59, SDB n = 42) were surveyed on their understanding, perceptions and application of physical training, monitoring, and testing practices. SEB were associated with strength/power training (SEB 78%, SDB 50%, P = 0.005), monitor of training intensities (SEB 68%, SDB 40%, P = 0.006), and performing regular fitness testing (SEB 76%, SDB 50%, P = 0.006), compared to SDB. Likewise, SEB were twice as likely (56%) to have their physical preparation managed by a strength and conditioning (S&C) coach or sport scientist, compared to SDB (26%; P = 0.005). For the first time, these data demonstrate the extent to which competitor level is associated with preparatory practices in amateur boxing. Cost was identified as the main barrier in implementing several forms of scientific support in SDB. These data serve as a framework to enhance preparatory practices across different competitor levels in amateur boxing. This might include boxer and coach education on the benefits to a more scientific approach, and the use of cost-effective methods to develop, monitor and assess amateur boxers physical performance. This may be of particular importance where boxers are not funded, such as the SDB in the current study. However, this work may also be used to emphasise the importance of strength/power training, physical fitness testing and monitoring at the elite level of amateur boxing.

Boxing Match Gone Awry- A Punch over the Head Leading to Eccentric Proptosis in a Child

The most common ocular pathologic conditions in amateur boxing are sub conjunctival haemorrhage, lid injuries, cataract, pupil deformation, angle abnormalities and retinal tear. Proptosis due to frontoethmoidal mucocele in young is one of the least common complications seen in boxers. Here, we discuss a rare case of unilateral eccentric proptosis of right eye in a child after he was punched over the right side of the head during a boxing match. He came with complaints of swelling of upper eyelid. Examination revealed right sided eccentric proptosis with restricted ocular movements and defective vision. Computed Tomography (CT) of orbit showed a well-defined isodense lesion with smooth margins arising from the frontal sinus, extending inferiorly to anterior ethmoidal sinus which caused mass effect over right eye and ocular muscles which resulted in displacement of the eye ball. Otolaryngologist’s opinion was obtained. Functional Endoscopic Sinus Surgery (FESS) was done. Postoperatively vision improved with no proptosis and eyeball returned to its normal position.

Linking voice pitch to fighting success in male amateur mixed martial arts athletes and boxers

Whereas voice pitch is strongly linked to people's perceptions in contexts of sexual selection, such as attractiveness and dominance, evidence that links voice pitch to actual behaviour or the formidability of a speaker is sparse and mixed. In this registered report, we investigated how male speakers’ voice pitch is linked to fighting success in a dataset comprising 135 (amateur) mixed martial arts and 189 (amateur) boxing fights. Based on the assumption that voice pitch is an honest signal of formidability, we expected lower voice pitch to be linked to higher fighting success. The results indicated no significant relation between a fighter's voice pitch, as directly measured before a fight, and successive fighting success in both mixed martial arts fighters and boxers.

The Effect of Carbohydrate Mouth Rinsing on Multiple Choice Reaction Time During Amateur Boxing

Purpose: To examine whether the use of a carbohydrate mouth rinse (CMR) can improve multiple choice reaction time in amateur boxers during sparring. Methods: A total of 8 male amateur boxers (age 22 [3] y, stature 1.78 [0.07] m, mass 73.6 [14.2] kg) with at least 18 months of experience in the sport volunteered to participate in the study. All participants attended a familiarization session, followed by an experimental (CMR; 6% dextrose) and placebo trials in a randomized order. Participants undertook 3 × 2 minutes of sparring against an ability- and size-matched (stature and mass) opponent. Multiple choice reaction time and perceived exertion were measured before round 1 and then after each round. The respective mouth rinse was administered in a 25-mL solution for 10 seconds before each round. Magnitude-based inferences were used to compare the results of each round (mean difference; ±90% confidence limits). Results: The CMR was unlikely to have a beneficial effect on multiple choice reaction time compared with placebo (mean ± 90% confidence limits: 5 ± 9.5, 4 ± 3.4, −1 ± 8.5 lights for rounds 1 to 3, respectively) and had a possibly harmful effect on perceived exertion in round 1 (10 ± 20). There was an unlikely harmful effect on perceived exertion in rounds 2 (1 ± 12) and 3 (9 ± 23). Conclusion: There is no evidence to support the use of CMR during sparring in amateur boxers.

A Development Machine for Measuring the Precision and the Response Time of Punches

Objective: To develop and evaluate the device for measuring precision (in percentage) and response time (in seconds) of punches. Methods: Researchers cooperated with Sports Authority of Thailand and the Amateur Boxing Association of Thailand in development. Results: Robo-Boxing Trainer machine consisted of four targets. Each punching target has eight sensors and eight LED lights. Operating software, which programmed by PLC-CX programmer and DOPSoft (delta), can set the punching series and alarm signals. It recorded the response time from the starting signal to making contact with the target, calculating precision in percentage. This software could be set and recorded maximal 40 series and maximal 100 punches in each punching series. Researchers compared the accuracy of counting time with Digital Oscilloscope and tested the efficiency of sensors’ cutting signal. This study found the counting time to be of high accuracy (100% and 98.8%). The cutting sensors' signal test found to be efficient. Conclusion: Robo-Boxing Trainer machine, which is high in accuracy, may help to test and improve a boxer’s skills. Also, it can apply to train for other related sports.