What You Need to Know About Weight Cutting in Muay Thai

Wrote on 29 March 2017

When it comes to performance in martial arts, one of the most debated topics is the adverse effects of cutting weight to compete.

Just recently, Scottish Muay Thai fighter Jordan Coe supposedly died of heat stroke trying to cut weight before a fightOur condolences go out to the family of Jordan, and fortunately, thousands have raised cash to bring him back to his homeland. This article aims to raise awareness of the dangers of weight cutting and to present the views of experts from Thailand and abroad on this aspect of competition.

Because of the high level of stress being put on your body, there can be some deadly and sometimes irreversible damage done.

While it has come under scrutiny recently because of the recent deaths that have occurred over the last few years, some critical aspects need to be considered when deciding to cut weight for a fight.

What Weight Cutting Does To Your Body

The main physical threat behind these weight cuts is dehydration and its long-term effects. Cutting often can result in damaged kidneys and hearts, and both these organs could fail. There are psychological effects that are harmful to professional athletes as well.

Consider how you feel when you are unable to eat when you would like to. Now imagine subjecting yourself to that consistently. Disorders, mood swings, and hormonal imbalances are pretty standard for professional fighters.

The US National Library of Medicine states the following about the effects of dehydration on exercise performance:

The effects of hypohydration may vary depending on whether it is induced by diuretics or sauna exposure, which substantially reduce plasma volume, or by prior exercise, which has much less impact on plasma volume. Hypohydration reduces aerobic endurance, but its effects on muscle strength and endurance are inconsistent and warrant further study.

While there is little long-term research on weight cutting, it’s evident that it has harmful side effects and that its effects on metabolism are substantial.

A History of Trouble

Weight cutting has long been scrutinized because of the inherent risks fighters face when attempting to shed a few extra pounds.

In 2015, 21-year-old Chinese prospect Yang Jian Bing passed away as he was cutting weight for ONE Championship’s 35th event.

As a result, One FC redeveloped its weigh-in system and could potentially be a pioneer in reducing the risk of weight-cutting.

Here are the details of the policy:

1. Athletes must submit their current walking weight and daily training weight regularly. Athletes will input and track their daily weight online via a dedicated web portal. Athletes may input data weekly, but must include daily weights.

2. Athletes will be assigned to their weight class based on collated data and random weight checks. Athletes are not allowed to drop a weight class when less than 8 weeks out from an event.

3. During fight week, weights are checked daily. Urine specific gravity will also be checked the day after arrival and 3 hours before the event. Athletes must remain within their weight class and pass specific gravity hydration tests throughout the week and up to 3 hours before the event. If an athlete falls outside the weight or fails a test, they are disqualified from the event. Doctors may request additional testing at their discretion.

4. Catch weight bouts are allowed. However, the athlete with the higher weight will not be heavier than 105% of the lighter opponent’s weight.

5. ONE will conduct random weight checks on athletes at our discretion.

6. Athletes may petition to change weight classes outside of the 8-week competition zone and must be within their new desired weight at that time. In addition, athletes must pass a specific gravity urine test when their weight is within the limits of the newly petitioned weight class. ONE doctor can request additional testing to determine the amount of weight drop allowed over a specific time.

7. The usage of IVs for the purpose of rehydration will not be allowed.

Overage and limits of weight reduction:

· 3 weeks to event day: Athlete must be within the contracted weight class

· 4 weeks: 1.5% bodyweight over max

· 5 weeks: 3%

· 6 weeks: 4.5%

· 7 weeks: 6%

· 8 weeks: +6% max over.

(ONE Chief Doctor may approve up to +/- 0.5% maximum error in any weekly weight check)

This is an excellent step toward making the sport less dangerous, and hopefully, more organizations will follow suit as competitive martial arts grow.

Weight Cutting in Muay Thai

The theories behind weight cutting in the sport of Muay Thai have remained unchanged for over four decades.

In Thailand, Nak Muay are typically walking around always within a few kilos of their weight. The main reason is the frequency of their fighting. Their Western counterparts usually have two (sometimes more) months to reach their agreed-upon fight weight.

Lindsey Newhall of Vice’s Fightland has a great article here about Ya Kiatpech, a fighter-turned trainer who administers IV drips to fighters to combat the effects of a severe weight cut.

Richi Khongsittha on Weight Cutting

Richi Huerta, a professional Muay Thai Fighter and resident sports science coach at Khongsittha Muay Thai, offers his perspective on weight cutting in Muay Thai and guidance on how to cut weight before a fight.

I believe this sport should include weight categories because the aim is to ensure a balanced competition. Fighters must be in the same weight because when they are the same weight, there are no profound differences in body composition. Fighting with someone who is three kilograms heavier is risky because the power you can produce with the additional weight means more damage can be done to people who have less weight than you.

When asked about whether or not weight cutting is dangerous:

I believe that weight cutting is dangerous. The problem is that people don’t do it properly. They don’t know how to do it. It’s a dangerous part of the game. If you’re cutting 2-3 kilograms, it’s not as dangerous as someone who needs to cut five or more kilograms. The most weight I’ve cut is 4 kilograms, but I will be cutting 5 kilos for my upcoming fight. If you plan correctly, you will not have to cut so much water weight.

I believe that you must incorporate a strict diet three weeks before a fight. First, you must always eat healthily. Healthy doesn’t mean cutting carbs when you’re training or cutting fats. This is all essential fuel for your body; cutting them does not make you healthier. Maintain adequate protein intake at all times, and keep it balanced. I reduce fruit intake and increase intake of brown rice and oats. Maintaining a high fiber intake while keeping your glycemic index low is critical for maintaining proper bodily function during weight cutting.

In your last week of training, having to cut more than three kilograms can put a very high amount of stress on your body, physically and mentally. Cutting salt out of your diet at this time will help you eliminate excess water. Reduce your food portions at this time. Avoid the sweat sauna until the last day. People commonly think that the sweat suit and the sweat sauna will help you burn fat faster. Keep in mind that you are also losing essential minerals, such as sodium, and that drinking water alone will not replenish them. You will not be properly hydrated, even after sweating profusely.

If you need to lose that extra 1-2 kilograms of water weight a day before weigh-ins, it will not be dangerous. Also, if you’re following a proper, healthy diet and doing it the right way, there shouldn’t be any problems. However, combining these stressful situations will increase the risk, stress, and potential for life-threatening outcomes.

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