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How long should it take to train to burn as much fat as possible?

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How long should it take to train to burn as much fat as possible?

Is it true? There are many myths surrounding both exercise and diet in the fitness world. How long should exercise take to burn as much fat as possible? According to one popular opinion, to burn fat effectively, you need to exercise for a certain amount of time, like 60 minutes.

Table of Contents

1. After which time the body begins to burn fat

Therefore, it is not clear that, for example, in the 40th minute of a workout, the body oxidizes fat, and no longer in the 60th minute, the exact intensity at which this process occurs cannot be determined. This intensity is most often referred to as FATmax. Jeukendrup, J. To answer the question of how long the workout should take to burn as much fat as possible, we must first look at the physiology of the human body.

2. Or does your body burn only fat when you're exercising?

The source of energy for working muscles is not only fat, but also carbohydrates. This means that even their oxidation does not always cause fat loss. Blood fatty acids can come from the fatty tissue of the liver (visceral), which is located between the internal organs, and is also located in the vicinity of the abdominal cavity.

3. What happens to fat tissue when you lose weight?

Meerman and A. Interestingly, the vast majority of specialists believed that fat is converted into energy or heat, which is a mistake because it violates the law of conservation of mass. What really happens to oxidized fat? The result is carbon dioxide (CO2) and water (H2O), which means that burned fat is turned into urine and is excreted during breathing (R. Brown 2014). R. Brown conducted a study that asked a group of people made up of personal trainers, doctors, and dieters what they think happens to fat tissue during body weight reduction.

4. Is it even how many calories you can burn while you're sleeping?

It depends. The energy used during sleep comes from fat tissue and muscle glycogen. Sleep is extremely important in the context of the body's regeneration. The average person is able to burn 6991 kcal per hour of sleep, which means that if you sleep for 8 hours, you can burn 544 725 kcal.
Source

Jeukendrup A., Achten J., Fatmax: a new concept to optimize fat oxidation during exercise?, „European Journal of Sport Science” 2010, 1(5), 1–5.
Meerman R., Brown A.J., When somebody loses weight, where does the fat go?, „BMJ” 2014, 349.