Video Presentations Notes-2

Aerobic Activity – continuous activity that requires a large amount of oxygen

Strengthens the heart and lungs

Heart:

Main organ in your CS

Size and shape of your fist

Right Side – pumps blood to the lungs

Left Side – Pumps oxygen rich blood to the rest of the body

Hemoglobin – iron rich compound in the blood that transports oxygen

Blood Vessels:

Three types of Vessels:

Capillaries – deliver oxygen to the individual

Veins – deliver blood back to the heart

Arteries – supply carry blood to the extremities

Respiratory System:

Body system that exchanges gases between your body and environment.

Principal organ is your lungs.

Respiration

Lungs exchange oxygen and carbon dioxide.

Lungs get their power from the diaphragm

Diaphragm – muscle found between the chest cavity and the abdomen

Benefits of Aerobic Activity:

Keep excess pounds at bay

Increase your stamina, fitness and strength

Ward off viral illnesses

Reduce your health risks

Manage chronic conditions
Strengthen your heart

Keep your arteries clear
Boost your mood

Stay active and independent as you age

Live longer

Risk factors of Lifestyle Diseases:

Lifestyle Diseases:

Lung Cancer

Heart Disease

Diseases that are the result of certain lifestyle choices.

Risk Factors:

Inactivity

Overweight

Smoking

High fat diet

Cardiovascular Diseases (CVD):

Any medical disorder that affects the heart and blood vessels

Atherosclerosis – plaque build up inside the arteries restricting blood flow

Heart Attack – results from blockage of a blood vessel that feeds the heart.

Sudden Cardiac Death – sudden cardiac arrest

Stroke – blood flow in the brain is interrupted by a blockage in the artery

Peripheral Vascular Disease – CVD that occurs mainly in the legs and less frequently than the arms

Hypertension – High Blood Pressure

Changeable Risk Factors: 

Avoid tobacco

Maintain a healthy weight

Eating right

Having regular check ups

VO2 MAX

Maximal Oxygen Consumption – VO2 – largest amount of oxygen your body is able to process during strenuous activity

Factors Affecting VO2 Max:

Age

Heredity

Slow Twitch vs Fast Twitch Muscle fibers

Body Composition

Level of Conditioning

Aerobic Activity:

Continuous activity that requires a large amount of oxygen

Strengthens the heart and lungs

Examples:

Swimming

Biking

Running

Walking

Jumping Rope

Interval Training

Anaerobic Activity:

Requires high levels of energy

Done for a small amount of time and a high intensity

“Without Oxygen”

Examples:

Stairs

Basketball

Sprinting

Weight Training

Interval Training