CARDIO - VASCULAR ENDURANCE

Cardio - Vascular Endurance is the ability of the heart,blood vessels, blood and respiratory system to supply oxygen and fuel to the muscles at a steady rate for a considerable length of time

Aerobic means "with oxygen" this is the word from which Aerobic classes got their name.

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OTHER NAMES

Aerobic Endurance
Cardio - Vascular Fitness
Stamina
Aerobic Endurance
Cardio - Respiratory Fitness
Endurance

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BIOLOGICAL BASIS FOR AEROBIC ENDURANCE

1. The ability of the respiratory system to take air into the body and the efficiency with which the lungs supply oxygen to the blood.
Endurance is reduced if your breathing is inefficient or if the lungs are not working well.

2. The ability of the blood to carry oxygen. This can be reduced if you are ill, have a poor diet or train too hard

3. The ability of your heart to pump blood around your body

4. The efficiency of the circulatory system that takes blood to your muscles and then returns it to your heart.

5. The ability of your muscles to extract oxygen from your blood.

6. Heredity influences your level of Cardio Vscular Endurance

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CHANGES TO THE C.V. SYSTEM DURING AEROBIC ACTIVITY

• The heart pumps faster and pumps more blood.
• Lungs increase volume of air inhaled and exhaled.
• Muscles contract at a greater speed.
• Body temperature rises and the body sweats.

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BENEFITS OF CARDIO VASCULAR DEVELOPMENT

• The heart becomes more efficient
• Blood volume. red cells and haemoglobin increases
• Decreases resting resting blood pressure
• Arteries grow larger
• Diaphragm grows stronger
• Lungs become more expandable increasing in volume
• Decreases body fat
• Increases energy level
• Recovery after exercise becomes quicker
• Reduces risk of heart disease, other hypokenetic conditions.
• Reduces the risk of an early death.

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