This is called aerobic exercise. All aerobic activity requires oxygen.
because your blood carries oxygen to you muscles. without much oxygen blood won't be able to take lots to your muscles, and with little oxygen your muscles won't work as well and therefore you won't run as quickly :)
Red Blood cells take oxygen to the working muscles as it is required for respiration.
Fermentation take place in your muscle cell when there is a low supply of oxygen. This is mostly after long hours of workouts which strain the muscles.
Your working muscles can take oxygen out of the blood three times.
Yes, cardiac muscles cells have a very high oxygen demand, since they are constantly in motion. This is why any shortage of oxygen causes angina, or if the oxygen deprivation is long enough, it causes death of the muscle cells - what is commonly called a heart attack.
Yes. When ever the arteries take oxygen rich blood to your muscles, the muscles take the oxygen out to use it to create energy. The oxygen deficient blood is taking back to the heart through the veins, then taken back to the lungs to extract oxygen again
14 to 15 days
14 to 15 days
The blood performs this task.
Arteries carry oxygen to the muscles of the body.
The cardiovascular system sends oxygen to the muscles.
aprox 4 weeks