Immediate Effects Of Exercise

I will be describing and explaining the acute immediate effects of exercises on the skeletal and muscular system. There are four main responses to exercise Increased blood supply to the muscles, Increased muscle pliability, Increased range of movement at joints and Muscle fibre micro tears.

Increased Blood supply to our muscles

When we are exercising our heart rate increases. During exercise more blood is pumping out of the heart and around the body. When our heart beats faster more blood will be pumping out if the heart in a minute. When exercising the diameter of the arterioles leading to our muscles are going to dilate and get wider, they are carrying oxygen. When exercising less blood is going to the arterioles leading to the
You are more likely to tear a cold muscle because it is less flexible and stretchy. When muscles initially contract, energy is released. However, the body is not very efficient at using that heat. Part of the energy released from heat goes toward energy production, some goes to warming up tissue, and the rest is lost through the skin. When exercising your heart rate increases and the circulation of blood flow is faster/ greater the blood will carry heat. With more warm blood circulating our muscles will become warmer and more flexible, as warm blood is flowing through our
The vasomotor control centre detected changes in the body through

Chemoreceptors - sends messages changes in chemicals travelling around the body.

Baroreceptors - Sends messages about changes in blood pressure.

Proprioceptors - sends messages around movement in the body.

If the vasomotor control center detects changes from the receptors it will dilate or constrict the pre- capillary sphincters tiny rings of muscle at the opening of blood capillaries. These will constrict during exercise so more blood goes to the muscles because we not need blood going to out organs. They will dilate to allow more blood to go to our muscles so we can have more oxygen rich blood and can perform better.

Increased breathing rate

During exercise your muscles demand more oxygen, when there is more oxygen entering your body there is also more carbon dioxide leaving the body. There are chemoreceptors in the brain and the heart that sense the amount of oxygen, carbon dioxide and acid present in your body. As a result, they manage the respiratory rate to compensate for any disruptions in the balance of any of these chemicals. Too much carbon dioxide in your body cause the respiratory rate to