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During exercise of increasing intensity there is a greater reliance on muscle glycogenolysis due to local factors and increased levels of this hormone:Group of answer choicesadrenalineinsulinglucagon

Question

During exercise of increasing intensity there is a greater reliance on muscle glycogenolysis due to local factors and increased levels of this hormone:Group of answer choicesadrenalineinsulinglucagon

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Solution

The hormone that increases during exercise of increasing intensity, leading to a greater reliance on muscle glycogenolysis, is adrenaline.

Here's why:

  1. During exercise, the body needs to produce more energy to meet the increased demand. This energy is produced by breaking down glycogen stored in the muscles, a process known as glycogenolysis.

  2. As the intensity of the exercise increases, the body needs to produce energy more quickly. This is where adrenaline comes in.

  3. Adrenaline is a hormone that is released in response to stress or excitement - such as during intense exercise. One of its roles is to stimulate glycogenolysis, helping to increase the rate at which energy is produced.

  4. Therefore, during exercise of increasing intensity, there is a greater reliance on muscle glycogenolysis due to local factors and increased levels of adrenaline.

Insulin and glucagon are also involved in energy regulation, but they play a more significant role in maintaining blood sugar levels, rather than in the immediate energy production required during intense exercise.

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