Cardiovascular Fitness

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Presentation transcript:

Cardiovascular Fitness Chapter 7 Cardiovascular Fitness

Cardiovascular Fitness The body’s ability to continuously provide oxygen to muscles as work is performed over and extended period of time. Your heart is a muscle.

Circulatory System Blood and blood vessels Heart Arteries Capillaries (Deliver oxygen and nutrients to the cells of your body) Veins Left side of heart pumps blood to the body. Right side pumps blood to the lungs.

Respiratory System Lungs and air passages

Muscles role in returning blood to heart Veins have valves

Resting Heart Rate Take pulse just after waking in the morning in the same body position. The best place to take pulse-wrist or neck. Low resting heart rate usually indicates a good level of aerobic fitness. Marathon runner 45-60 bpm Fit individual 60-75 bpm Not so fit individual 70-85 bpm Not so fit smoker 80-110 bpm Not so fit obese smoker 90-120 bpm

Target Heart Rate This is where you want your exercise heart rate. 220-Age=Maximal Attainable Heart Rate 60-90% of that is the Target Heart Rate Zone

Recovery Heart Rate Check pulse after exercise session. Heart rate 5 min. after workout= 120 bpm Heart rate 10 min. after workout=100 bpm If heart rate is above this amount-Decrease intensity (run slower) If heart rate is below this amount-Increase intensity (run faster)

Blood Pressure Systolic pressure-heart is contracting This is the top number Diastolic pressure-heart is relaxing This is the bottom number Normal blood pressure 120/80 High blood pressure is a risk factor for heart disease and stroke. Cardiovascular disease is responsible for over 40% of all deaths in adults.

Cardiovascular benefits of exercise Active people –Less heart disease, less likely to die from heart attacks. Develop extra coronary arteries in heart. Heart muscle gets stronger Improved ability to concentrate, cope with stress and improved self-concept.

To improve cardiovascular fitness you need to: Use large body muscles. Exercise 20 min-60 min Use oxygen (aerobic exercise) Do at least 3 times/week Examples: jogging, swimming, jump rope, bicycling

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