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Cardio

Cardio. Definition: an activity that works your heart. The heart. Arteries carry the blood out of the heart (with oxygen) Veins carry the blood back into the heart (without oxygen) Your body holds about 6 litres of blood. Blood travels from the arteries, to the capilleries to the veins.

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Cardio

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  1. Cardio Definition: an activity that works your heart

  2. The heart Arteries carry the blood out of the heart (with oxygen) Veins carry the blood back into the heart (without oxygen) Your body holds about 6 litres of blood

  3. Blood travels from the arteries, to the capilleries to the veins

  4. Heart rates • Your Resting Heart Rate (RHR) is your pulse at rest • Your Recovery Heart Rate is your pulse after and activity when your body goes back to normal. It should be at 120 BPM 5-6 minutes after your activity. It should be 100 BPM 10 minutes after the activity

  5. Blood pressure • Systolic pressure (when the blood is pumped out of your heart) • Diastolic pressure (when the heart is relaxed) • Your pressure should be 120 over 80 • + or – 20 for systolic and + or – 10 for diastolic is ok

  6. Cardiovascular disease • The primary cause is a build up of fatty deposits in the inner walls of the arteries • This is called atherosclerosis • What do you think some risk factors are? • Inactivity, obesity, smoking, high blood pressure, stress, female/male, high cholesterol, age, heredity • Heart related illnesses cause 40% of deaths in Canada

  7. Overload • How would you use the overload principle for cardio? • Frequency? • Intensity? • Time?

  8. Target heart rate (intensity) 220-your age = MHR (max heart rate) MHR-RHR = A A x 60% = B B + RHR = lower limit of target zone To get your higher limit, do the same thing but multiply A by 90%

  9. Progression & Specificity • How do you apply the principle of progression to cardio? • There are two types of exercise that use oxygen: aerobic and anaerobic • Aerobic: uses oxygen and can be done for at least 15 minutes without gasping for breath. Examples? • Anaerobic: uses oxygen faster than you can replenish it. Can only be done for a short period of time

  10. Wrap-up • Study questions on page 115 • Discussion questions on page 117

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