scholarly journals Salivary nitrite content, cognition and power in Mixed Martial Arts fighters after rapid weight loss: a case study

2016 ◽  
Vol 2 (2) ◽  
Keyword(s):  
Weight Loss ◽  
Martial Arts ◽  
Rapid Weight Loss ◽  
Mixed Martial Arts ◽  
Nitrite Content

Rapid Weight Gain Following Weight Cutting in Male and Female Professional Mixed Martial Artists

2021 ◽  
pp. 1-9
Author(s):  
Kadhiresan R. Murugappan ◽  
Ariel Mueller ◽  
Daniel P. Walsh ◽  
Shahzad Shaefi ◽  
Akiva Leibowitz ◽  
...  
Keyword(s):  
Weight Loss ◽  
Weight Gain ◽  
Body Mass ◽  
Martial Arts ◽  
Female Athletes ◽  
Rapid Weight Loss ◽  
Mixed Martial Arts ◽  
Rapid Weight Gain ◽  
Male And Female ◽  
Small Series

Rapid weight loss or “weight cutting” is a common but potentially harmful practice used in mixed martial arts competition. Following the official weigh-in, competitors refeed and rehydrate themselves in a process known as rapid weight gain (RWG) to realize a potential competitive advantage. While data from surveys and small series have indicated the majority of mixed martial arts athletes engage in rapid weight loss, there is a lack of officially collected data from sanctioning organizations describing its prevalence. The present investigation represents a summary of the data collected between December 2015 and January 2018 by the California State Athletic Commission. In total, 512 professional mixed martial artists (455 males and 57 females) were included. Of these, 503 (98%) athletes gained body mass between weigh-in and their bouts. Total RWG between weigh-in and competition was 5.5 ± 2.5 kg, corresponding to an 8.1% ± 3.6% body mass increase. Total RWG was 5.6 ± 2.5 kg (8.1% ± 3.6%) for males and 4.5 ± 2.3 kg (8.0% ± 3.8%) for females. More than one quarter of men and one third of women gained >10% body mass between weigh-in and competition. Athletes from leading international promotions gained more absolute, but not relative, body mass than those from regional promotions. Our findings indicate RWG is nearly ubiquitous in professional , with a similar prevalence in male and female athletes. Trends based on promotion suggest a larger magnitude of RWG in presumably more experienced and/or successful mixed martial artists from leading international promotions.

scholarly journals Prevalence, Magnitude and Methods of Rapid Weight Loss Reported by Male Mixed Martial Arts Athletes in Ireland

Sports ◽  
2019 ◽  
Vol 7 (9) ◽  
pp. 206 ◽  
Author(s):  
John Connor ◽  
Brendan Egan
Keyword(s):  
Weight Loss ◽  
Body Mass ◽  
Martial Arts ◽  
Average Weight ◽  
Rapid Weight Loss ◽  
Mass Reduction ◽  
Mixed Martial Arts ◽  
Weight Category ◽  
Water Loading ◽  
Body Mass Reduction

Rapid weight loss (RWL) is frequently practiced in weight category sports, including Mixed Martial Arts (MMA). The aim of the present study was to describe self-reported methods of RWL in a sample of competitive MMA athletes comprising of both amateur and professional fighters. The previously-validated Rapid Weight Loss Questionnaire, with the addition of questions on water loading and hot salt baths, was completed anonymously online by athletes (n = 30; all male, n = 15/15 professional/amateur) from MMA clubs around Dublin, Ireland. All but one (97%) of the athletes surveyed lost weight in order to compete, with the average weight loss being 7.9% ± 3.1% of habitual body mass. The RWL score (mean ± SD) for this sample was 37.9 ± 9.6, and a tendency for higher [6.0 (95%CI; −1.1, 13.1) (p = 0.093; d = 0.64)] RWL scores for professional (40.8 ± 8.9) compared to amateur (34.8 ± 9.6) athletes was observed. Frequencies of “always” or “sometimes” were reported as 90% for water loading, 76% for hot salt baths and 55% for 24 h of fasting. Fellow fighters (41%) and coaches/mentors (38%) were “very influential” on RWL practices of these athletes, with doctors (67%), dietitians (41%), and physical trainers (37%) said to be “not influential”. RWL is highly prevalent in MMA across both amateur and professional athletes, and RWL scores are higher than other combat sports. Water loading and hot salt baths are amongst the most commonly used methods of RWL despite little research on these methods for body mass reduction or effects on performance in weight category sports.

scholarly journals Combat Sport Nutrition: A Pragmatic Case Study in an Elite Mixed Martial Arts Athlete

2020 ◽  
Author(s):  
Joseph Matthews
Keyword(s):  
Body Mass ◽  
Martial Arts ◽  
Traditional Approach ◽  
Sports Nutrition ◽  
Energy Restriction ◽  
Sport Nutrition ◽  
Rapid Weight Loss ◽  
Mixed Martial Arts ◽  
Weight Category

Introduction: Mixed martial arts (MMA) athletes typically undergo energy restriction and severe dehydration to compete in a specific weight category: a process known as making weight. This can pose a health risk to athletes and has led to fatalities. Some risks can be mitigated with structured sports nutrition. Methods: This case study provides an overview of a 10-week sports nutrition intervention devised to support an elite male MMA athlete for a world lightweight title bout. Results: Over a 9-week period, body mass was reduced from 81.6 kg (baseline) to 75.4 kg (1-week pre-competition): total loss 6.2 kg (8.2%) equivalent to 0.68 kg.wk-1. In the final 5 days, body mass was reduced by a further 5.2 kg (7.4%), before regaining 5.8 kg (8.3%) and entering competition at 76 kg. There was no incidence of injury or illness throughout the training camp and the athlete reported positive feedback regarding health, wellbeing, and physical performance. Conclusions: The intervention demonstrates a pragmatic approach to making weight by allowing moderate rapid weight loss (RWL) and rapid weight gain under controlled conditions. In the absence of rule changes to prevent RWL, coaches and athletes can utilise sports nutrition strategies to minimise the risks associated with a traditional approach to making weight.

scholarly journals Extreme Rapid Weight Loss and Rapid Weight Gain Observed in UK Mixed Martial Arts Athletes Preparing for Competition

2017 ◽  
Vol 27 (2) ◽  
pp. 122-129 ◽  
Author(s):  
Joseph John Matthews ◽  
Ceri Nicholas
Keyword(s):  
Weight Loss ◽  
Weight Gain ◽  
Body Mass ◽  
Martial Arts ◽  
Repeated Measures ◽  
Hydration Status ◽  
Rapid Weight Loss ◽  
Mixed Martial Arts ◽  
Rapid Weight Gain ◽  
Repeated Measures Design

There is a lack of research documenting the weight-making practices of mixed-martial-arts (MMA) competitors. The purpose of the investigation was to quantify the magnitude and identify the methods of rapid weight loss (RWL) and rapid weight gain (RWG) in MMA athletes preparing for competition. Seven athletes (mean ± SD, age 24.6 ± 3.5 yrs, body mass 69.9 ± 5.7 kg, competitive experience 3.1 ± 2.2 yrs) participated in a repeated-measures design. Measures of dietary intake, urinary hydration status, and body mass were recorded in the week preceding competition. Body mass decreased significantly (p < .0005) from baseline by 5.6 ± 1.4 kg (8 ± 1.8%). During the RWG period (32 ± 1 hr) body mass increased significantly (p < .001) by 7.4 ± 2.8 kg (11.7 ± 4.7%), exceeding RWL. Mean energy and carbohydrate intake were 3176 ± 482 kcal・day-1 and 471 ± 124 g・day-1, respectively. At the official weigh-in 57% of athletes were dehydrated (1033 ± 19 mOsmol・kg-1) and the remaining 43% were severely dehydrated (1267 ± 47 mOsmol・kg-1). Athletes reported using harmful dehydration-based RWL strategies, including sauna (43%) and training in plastic suits (43%). Results demonstrated RWG greater than RWL, this is a novel finding and may be attributable to the 32 hr duration from weigh-in till competition. The observed magnitude of RWL and strategies used are comparable to those which have previously resulted in fatalities. Rule changes which make RWL impractical should be implemented with immediate effect to ensure the health, safety and wellbeing of competitors.

Rapid Weight Loss Elicits Harmful Biochemical and Hormonal Responses in Mixed Martial Arts Athletes

2015 ◽  
Vol 25 (5) ◽  
pp. 480-486 ◽  
Author(s):  
Victor Silveira Coswig ◽  
David Hideyoshi Fukuda ◽  
Fabrício Boscolo Del Vecchio
Keyword(s):  
Weight Loss ◽  
Body Mass ◽  
Martial Arts ◽  
Negative Impact ◽  
Rapid Weight Loss ◽  
Mixed Martial Arts ◽  
Training Experience ◽  
Hormonal Responses ◽  
Before And After ◽  
Post Hoc

The purpose of this study was to compare biochemical and hormonal responses between mixed martial arts (MMA) competitors with minimal prefight weight loss and those undergoing rapid weight loss (RWL). Blood samples were taken from 17 MMA athletes (Mean± SD; age: 27.4 ±5.3yr; body mass: 76.2 ± 12.4kg; height: 1.71 ± 0.05m and training experience: 39.4 ± 25 months) before and after each match, according to the official events rules. The no rapid weight loss (NWL, n = 12) group weighed in on the day of the event (~30 min prior fight) and athletes declared not having used RWL strategies, while the RWL group (n = 5) weighed in 24 hr before the event and the athletes claimed to have lost 7.4 ± 1.1kg, approximately 10% of their body mass in the week preceding the event. Results showed significant (p < .05) increases following fights, regardless of group, in lactate, glucose, lactate dehydrogenase (LDH), creatinine, and cortisol for all athletes. With regard to group differences, NWL had significantly (p < .05) greater creatinine levels (Mean± SD; pre to post) (NWL= 101.6 ± 15–142.3 ± 22.9μmol/L and RWL= 68.9 ± 10.6–79.5 ± 15.9μmol/L), while RWL had higher LDH (median [interquartile range]; pre to post) (NWL= 211.5[183–236] to 231[203–258]U/L and RWL= 390[370.5–443.5] to 488[463.5–540.5]U/L) and AST (NWL= 30[22–37] to 32[22–41]U/L and 39[32.5–76.5] to 72[38.5–112.5] U/L) values (NWL versus RWL, p < .05). Post hoc analysis showed that AST significantly increased in only the RWL group, while creatinine increased in only the NWL group. The practice of rapid weight loss showed a negative impact on energy availability and increased both muscle damage markers and catabolic expression in MMA fighters.

scholarly journals High Prevalence and Magnitude of Rapid Weight Loss in Mixed Martial Arts Athletes

2019 ◽  
Vol 29 (5) ◽  
pp. 512-517 ◽  
Author(s):  
Mathew Hillier ◽  
Louise Sutton ◽  
Lewis James ◽  
Dara Mojtahedi ◽  
Nicola Keay ◽  
...  
Keyword(s):  
Weight Loss ◽  
Body Weight ◽  
Martial Arts ◽  
Primary Source ◽  
Well Being ◽  
Rapid Weight Loss ◽  
Mixed Martial Arts ◽  
Reduced Body ◽  
Validated Questionnaire ◽  
High Prevalence

The practice of rapid weight loss (RWL) in mixed martial arts (MMA) is an increasing concern but data remain scarce. The aim of this study was to investigate the prevalence, magnitude, methods, and influencers of RWL in professional and amateur MMA athletes. MMA athletes (N = 314; 287 men and 27 women) across nine weight categories (strawweight to heavyweight), completed a validated questionnaire adapted for this sport. Sex-specific data were analyzed, and subgroup comparisons were made between athletes competing at professional and amateur levels. Most athletes purposefully reduced body weight for competition (men: 97.2%; women: 100%). The magnitude of RWL in 1 week prior to weigh-in was significantly greater for professional athletes compared with those competing at amateur level (men: 5.9% vs. 4.2%; women: 5.0% vs. 2.1% of body weight; p < .05). In the 24 hr preceding weigh-in, the magnitude of RWL was greater at professional than amateur level in men (3.7% vs. 2.5% of body weight; p < .05). Most athletes “always” or “sometimes” used water loading (72.9%), restricting fluid intake (71.3%), and sweat suits (55.4%) for RWL. Coaches were cited as the primary source of influence on RWL practices (men: 29.3%; women: 48.1%). There is a high reported prevalence of RWL in MMA, at professional and amateur levels. Our findings, constituting the largest inquiry to date, call for urgent action from MMA organizations to safeguard the health and well-being of athletes competing in this sport.

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