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sports performer in action

sweat production and skin reddening

increased breathing rate

Body temperature increases during exercises because of increased heat caused by metabolic activity and other exercises-related factors, so your body needs to cool down.

As your body temperature rises during exercise, your sweat production increases when sweat reaches the surface of your skin, it changes from a liquid to vapor and results in heat loss, which cools the body down. This process is known at evaporation. Your skin goes red during exercise because the blood vessel in the skin dilate( known as vasolidation) allowing heat to escape from the blood to the skins surface to cool the body down.

As well as increasing heart rate, your body also increases its breathing rate during exercise. This is so that more oxygen can be supplied to the working muscles and carbon dioxide can be removed.

increased range of movement in the joint

During exercise,our blood flow and muscle temperature start to increase. Our muscles get warmer blood is being pumped. As the muscles get warm, they become more pliable. This combined with the the increased level of synovial fluid in the joints means an increased range of movement.

micro - tears in muscles fibres

increased heart rate and blood flow

When you take part in a resistance exercise, such as free weights, this activity is designed to cause micro tears, which are necessary muscle breaks. To rebuild bigger and stronger muscle.

increased production of synovial fluid

Before you start to exercise, your body

experiences an anticipatory rise. this is because this is because you`re body knows you`re about to exercise and releases adrenaline.

The blood is used to transport oxygen and nutrients, and remove waste products. Your increased heart rate is an important short-term response because the heart has to work harder during exercise to be able to supply enough blood to meet the demands of the exercise.

In an exercise we should always warm up, this prepares out body for the exercise to stop the risk of getting injured. more synovial is released into the joint . As we exercise more, synovial fluid warms and becomes thinner, easing joint movement.

muscuskeletal system

new bone formation

New bone formation is formed after it has been placed under stress. after a load, bone cells travel to the stressed area and start to lay down

new bone. The bone cells then produce mainly collagen, which is dropped in between the bone cells to increase bone strength in that area. Generally, people who take part in high-impact activity will form more new bone and it will be thicker and stronger.

redistribution of blood flow

increased metabolic activity

During exercise, the body reduces the amount of blood to places where it is not required and sends it to other places that need more blood.This process happens when the arterioles that supply the less active parts of parts, such as the liver and kidneys, narrow (a process known as vasoconstriction), while the arterioles that supply more active parts of your body, such as your muscles , vasodilate.

Have you ever noticed that when you have trained for a long time you start to get hungrier? this is because exercise requires energy and your body needs to meet that energy demands, through metabolic activity. In order to maintain exercise, our body starts to produce and use more energy by using enzymes to start off a chemical reactions that turn the food and drink that we consume into a useable form of energy. As well as providing energy, this process also produces a lot of heat.

Increased tidal volume

Tidal volume is the amount of air inhaled in during normal breathing. The average is 500ml of air but this volume increases with exercise.

lactic acid in the blood

Blood pressure

Blood pressure is the product of your cardiac output and the resistance to blood flow within the blood vessel.

Blood pressure has two parts systolic pressure ( when the heart pumps the blood) and diastolic pressure (when the heart is relaxing and filling with blood) healthy blood pressure value is 120/80mmhg.

Cardiac output

Remember the burning sensation in your arms and legs? that is caused by a build up of latic acid.

Latic acid forms in your blood during an anaerobic exercise. When you are low on oxygen or performing intense exercise and cant produce energy using oxygen, your body uses carbohydrates as a fuel source. As you cool down the latic acid gets removed. football player will gets this after 90 minutes so the physiotherapist rubs there legs to get the acid out.

An important short-term response to exercise is an increase output.

cardiac output is the amount of blood pumped per minute by the heart, and is important because it helps the body cope with the increased demands of exercise by transporting more oxygen and nutrients to the working muscles.

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