cardiorespiratory endurance
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Cardiorespiratory Endurance. Your Heart, Lungs, and circulation. Aerobic Activity- continuous activity that requires large amounts of oxygen Strengthens heart Strengthens lungs Working muscles more efficient at using oxygen. Your circulatory system. - PowerPoint PPT PresentationTRANSCRIPT
Cardiorespiratory Endurance
Your Heart, Lungs, and circulation Aerobic Activity- continuous activity that
requires large amounts of oxygen Strengthens heart Strengthens lungs Working muscles more efficient at using
oxygen
Your circulatory system Circulatory system- consists of heart,
blood and blood vessels http://
www.youtube.com/watch?v=CWFyxn0qDEU
The heart Main organ Right side pumps blood to lungs Left side pumps oxygen rich blood to the
rest of the body Hemoglobin-iron rich compound in the
blood that helps carry the oxygen Stroke volume- amount of blood
pumped per beat of the heart
Blood vessels Arteries- vessels that carry blood from
the heart to the major extremities Capillaries- smaller; deliver oxygen and
other nutrients to individual cells Veins-deliver blood back to heart
Respiratory system Respiratory system-the body system
that exchanges gases between your body and the environment
Main organ lungs Diaphragm- a muscle found between
the chest cavity and abdomen
Process of respiration
Benefits of respiratory endurance Increases stroke volume Lowers resting heart rate Muscles involved with breathing
function more efficiently More you condition aerobically the more
strenuous physical activity you are able to do
Long term benefits Cardiorespiratory endurance-the ability
of the body to work continuously for extended periods of time.
Have increased energy Less stress Feel better
LESSON 2 PROBLEMS AND CARE OF YOUR HEART
AND LUNGS
Risk factors Heart disease, lung cancer, and other
illnesses of the circulatory system and respiratory system are known as
Lifestyle diseases- diseases that are the result of certain lifestyle choices
Risk factors Inactivity,overweight,smoking, foods
high in fat
Cardiovascular disease CVD- any medical disorder that affects
the heart or blood vessels. Leading cause of death 950,000 a year Atherosclerosis-a condition in which a
fatty deposit called plaque builds up inside arteries, restricting or cutting off blood flow
Heart Attack Each year 1 million have heart attacks. ½ people die from the heart attack Blockage of a blood vessel that feeds
the heart muscle Tightness in chest. Tingling in left arm,
abnormal breathing, no circulation
Sudden Cardiac Death Young and old people The loss of blood supply to the heart
muscle during a heart attack may cause the heart to stop beating, referred to as cardiac arrest
http://www.youtube.com/watch?v=PFvXr8WR8wo
Stroke Stroke- when blood flow to a person’s
brain is interrupted or cut off entirely by the blockage of an artery
Usually results in damage to the brain and can leave a person paralyzed
Signs Sudden numbness especially on one
side,confusion, trouble seeing, severe headache, dizziness
Peripheral vascular disease A cardiovascular disease that occurs
mainly in the legs and, less frequently, the arms.
During exercise Risk factors cigarette smoke and type 2
diabetes
Hypertension Hypertension= high blood pressure “silent killer”
Diseases of the lung Lung cancer and emphysema Of the 200,000 deaths approximately
half are directly linked to cigarette smoking
Emphysema- a disease in which the small airways of the lungs lose their normal elasticity, making them less efficient in helping to move air in and out of the lungs.
Care of systems Best treatment is prevention Activities that can keep your heart and
lungs healthy. Avoiding tobacco Maintaining healthy weight Eating right Medical checkups