If we are at rest the body burns predominantly fat.
|
|
If we start to intensify our exercise initially we burn carbohydrates but soon we start to burn greater amounts of fat.
|
|
The fitter we are the better we become the better we get at utilising a greater percentage of fat in our fuel mixture.
|
|
|
The more aerobically fit we are the more efficient we become at burning fat and the longer we can exercise.
|
|
As very intense exercise = carbohydrate energy, so to achieve the intensity we need in our workouts we need a good carbohydrate base. |
|
Once eaten carbohydrate is turned into glycogen. 75% is then stored in the muscles ready to be used & 25% in liver & blood for the body to function. |
|
When muscles deplete their supply they will fatigue. |
|
A typical 150 lb male has the following gycogen stored as follows:
Muscle glycogen 1200 kcal (300g)
Liver glycogen 400 kcal (100g)
Blood glucose 80 kcal (20g)
|
|
Total glycogen 1600 kcal (400g) |
|
In terms of muscle the amount of glycogen per 100 g of muscle is as follows:
Untrained muscle 13g
Trained muscle 32g
Carbo loaded 34-40g
Therefore trained muscles can hold more and go for longer and burn more fat.
|
|
Every time we exercise we damage /micro tear our muscle fibres and break down proteins to amino acids for use as fuel. This process stimulates our muscles to adapt by becoming faster, bigger or stronger. The heavier resistance the more this process occurs.
|
|
|
|
| |
|
