Atp

ATP production pathway

The main metabolic pathway for producing adenosine triphosphate (ATP) at rest is through aerobic metabolism.

Oxygen deficit

The oxygen deficit is the difference between the oxygen required for a given exercise intensity and the actual oxygen consumption during the initial stages of exercise.

Lactate threshold (LT)

Lactate threshold is the exercise intensity at which lactate begins to accumulate in the blood.

Fuels during low intensity exercise

During low intensity exercise, the body primarily utilizes fat as a fuel source.

Fuels during high intensity exercise

During high intensity exercise, the body predominantly uses carbohydrates as a fuel source.

EPOC

Excess Post-exercise Oxygen Consumption (EPOC) refers to the increased rate of oxygen intake following strenuous activity to erase the body's oxygen deficit.

Long duration exercise

In long duration exercise, fat becomes the primary fuel source as glycogen stores become depleted.

Short duration exercise ( <1 hour)

During short duration exercise, the body primarily relies on carbohydrate stores for energy.

Lactate as a fuel

Organs such as the heart and brain can utilize lactate as a fuel source.

Effect of training on oxygen deficit

Training can reduce the oxygen deficit by improving aerobic capacity and the efficiency of oxygen usage during exercise.