THE PHYSIOLOGY OF FITNESS

MUSCULAR SYSTEM RESPONSES

• Increased blood supply:
• During exercise 87% of blood goes to the muscles.
• This happens because the blood goes the accentual muscles you during
• exercise and not the unaccental ones like kidney which needs less blood.

INCREASE IN MUSCLE PLIABILITY

• The muscle warm up to incrase range of movement.
• It happens to reduces the change of injure and energy is relased
• and heat is created.

INCREASE RANGE OF MOVEMENT

• During exerises your muscles stretch allowing more movement at the joints
• This allows your muscles to extend fully meaning joints are more effective

MUSCLE FIBRE TEARS

• During exercise little microscopic tears in the muscles
• This can make your muscles stronger and bigger as they need to be repaired

CARDIOVASCULAR SYSTEM RESPONSE

HEART RATE ANTICIPATORY RESPONSE

• Adrenaline is injected into the heart and brain
• This happens to get your body reach for exercise by raising
• heart and breathing rate.

HEART RATE ACTIVITY RESPONSE

• This is the heart rate during exercise
• This is when increased message ate sent from the cardic system
• to the brain getting it ready for exercise.

INCREASE BLOOD PRESSURE

• During exercise more force is exerited on the wall
• of the vessel walls.
• To get more oxygen to the working muscles the
• pressure which Increase is systolic.

VASOCONSTRICTION

• The size of the blood vessels when they decreased
• This happen because lee blood is need at the unaccental muscles

VASODILATION

• The size of the blood vessels increase
• To increase the flow of blood to the working muscles