Monday, 23 March 2015

George Rapley Unit 4 - Assignment 1

The Short-Term Effects of Exercise on the Cardiorespiratory System

Increased heart rate
when you exercise your heart rate gets faster so then your muscles need more oxygen so your heart pumps blood around the body faster. this is to deliver oxygen to the muscles to enable us to exercise. the highest it can be per minute 220 - your age. a 20 year old would have a maximum heart rate of 200.

Increased breathing rate
you need oxygen when you exercise so it pumps blood and oxygen around your body so you can exercise more, so that is why you breathe heavier so you can run more. When you exercise, you are making your muscles work harder. This is true no matter what kind of exercise you're doing. If you're lifting weights, you're using the muscles that will give you the body of a fitness model; but if you're doing aerobics or cardiovascular exercise like running, bicycling, or rowing you are still using one muscle in particular &md your heart is a muscle. your breathing in more to give more oxygen because the oxygen is being given to the blood.

Sweat production and skin reddening
when we sweat whilst  we are exercising it means your body is cooling you down and when your face goes read it means you are hot. when your hot and you sweat it means your body is trying to cool you down. because when you get hot you put water over your face that is what sweat does cooling you down. when your face is red because their is so much blood around your body and appears redder and their is more blood under your skin.

Increased blood flow
when you exercise, the blood vessels in your muscles dilate and the blood flow is greater, just as more water flows through a fire hose than through a garden hose. Your body has a way of making those vessels get bigger.  The increased blood flow delivers more oxygenated blood to the working muscle to meet the demands of exercise.                          


 The Short-Term Effects of Exercise on the Musculoskeletal System


Produce more synovial fluid
 production of synovial fluid for joint lubrication and nourishment. The synovial helps your knee cap to move it and helps it to be smooth and loose like when you put oil on the hinges on a door it helps it be smoother and open easier. So it helps your knee to move when you are running or walking.

Increased blood flow to muscles
Increased joint range of movement due to increase in blood flow and increased muscle temperature. By exercising the muscles warm up and when the muscles warm are warm that means your muscles can stretch further and they become more elasticity.

Micro tears in muscle fibres
Micro tears in muscle fibres , causing the muscle to rebuild itself and become slightly bigger and stronger.when you exercise you get micro tears and when they come back they are bigger and stronger , and if you don't have a rest day they might not heal properly and wont come back bigger or stronger.

Muscles contract and body temperature rises
muscle contraction is where you start exercising and then your muscles start to move while your exercising this is your muscles contracting.
Also while you exercise your blood flow increases because of the exercise your doing makes it increase when you sweat and you can see it when your skin goes redder.
Rise in muscle temperature because more blood is being pumped around the body that will increase the muscle temperature.


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