When you exercise you use your muscles and your muscles contain Glycogen which could be considered your "energy source". during exercise your muscles use glycogen depleting your energy levels making you feel tired.
When you exercise, you need to move a lot, so you'll need more blood to carry oxygen and do gas exchange to transfer energy.
Mitochondria make the energy in your body. During exercise you need more energy so you need more energy "factories"
Your heart beats faster and you breathe more because your blood cells need more energy to give to your muscles
During exercise your muscles need more energy from respiration in order to contract. So your heart beats faster and the arteries supplying the muscles dilate (widen)
As you exercise, the muscles need more oxygen to work. The heart beats faster to get the oxygenated blood from the lungs to the muscles. The harder you exercise, the more oxygen the muscles need, the faster the heart beats.
During exercise, the body requires more oxygen because the muscles are working harder and need more energy to function. Oxygen is needed to help convert nutrients into energy through a process called aerobic respiration. This increased demand for oxygen helps the body meet the energy needs of the muscles during physical activity.
Oxygen
Muscles are metabolically very active.So they need lot of energy.
Yes, your muscles need more blood pumping to them when they are getting
Because when you work your muscles they need more oxygen, and to get more oxygen you need to breathe more often.
During exercise, your body needs more oxygen to supply to your muscles. This is because oxygen is essential for the process of generating energy through aerobic metabolism. Therefore, increasing your oxygen intake through respiration is important to support your muscles during physical activity.
muscles. The cells need to produce more energy