Question

Burning fats during exercise: causes a loss of muscle protein, spares glucose resulting in more muscle stamina, causes a fat deficiency so care must be taken to avoid this, or starts quickly and exhausted quickly

Answer 1

The correct option is 2.

Burning fats during exercise spares glucose, which can lead to increased muscle stamina as the body turns to fat metabolism once glucose stores start to deplete. It is an efficient energy source for prolonged low-intensity activities and does not cause muscle protein loss or fat deficiency.

Step-by-step explanation:

Burning fats during exercise does not cause a loss of muscle proteins or a fat deficiency; rather, it spares glucose and can result in more muscle stamina due to the body's switch to fat metabolism.

Initially, exercises use glucose and glycogen stores, but as these are depleted, the body increases fat metabolism to fuel aerobic pathways. Therefore, the correct option is that burning fats during exercise spares glucose resulting in more muscle stamina.

Detailed studies on metabolism indicate that during prolonged low-intensity activities, the primary source of energy is fatty acids, allowing these activities to continue for extended periods without affecting muscle protein.

High-intensity activities rely on anaerobic metabolism and quickly expend muscle glycogen, leading to an increase in lactate, which can contribute to muscle fatigue. Training can improve the effectiveness of anaerobic activities and increase tolerance to lactate.

The complete question is given below:

Choose the correct option:

Burning fats during exercise:

1. causes a loss of muscle protein
2. spares glucose resulting in more muscle stamina
3. causes a fat deficiency so care must be taken to avoid this
4. starts quickly and exhausted quickly