Transcript Power Point 4

Power Point 4
Basics and Development of
Cardiovascular Endurance
Your Circulatory System
• The circulatory system consists of the heart, blood,
and blood vessels. This system is also sometimes called
the cardiovascular system.
• The heart is the main organ of the circulatory system.
• The heart beats at different rates depending on
whether your body is at rest or at work.
• There are 3 types of blood vessels:
– Arteries which carry blood from the heart to the major
extremities.
– Capillaries which deliver oxygen and other nutrients to
individual cells.
– Veins which deliver blood back to the heart.
Your Respiratory System
• The oxygen that your blood carries comes
from the air around you. It is introduced into
your body by means of your Respiratory
System, which is the body system that
exchanges gases between your body and the
environment.
• The principal organ of your respiratory system
is your lungs. They exchange oxygen and
carbon dioxide.
Benefits of Aerobic Activity
• Aerobic activity is continuous activity that
requires large amounts of oxygen.
• Some of the benefits of aerobic activity are
– A lower resting heart rate
– More efficient breathing
– Cardiorespiratory endurance
Risk Factors & Lifestyle Diseases
• Lifestyle diseases are diseases that are the result
of certain lifestyle choices. Some risk factors for
heart and lung disease are inactivity, being
overweight, smoking, and eating foods high in fat
and cholesterol.
• Some examples of lifestyle diseases are:
–
–
–
–
Heart Attack
Stroke
Hypertension
Emphysema
Factors Affecting Cardiovascular
Endurance
• The factors that affect cardiovascular endurance
are age, heredity, body composition, and level of
conditioning.
• Although several of these factors are beyond your
control, anyone can sustain a relatively high level
of fitness by doing the following:
–
–
–
–
Start while you are young
Stay active
Pay attention to fitness factors you can control
Make your body work for you, not against you.
Anaerobic Activities
• Anaerobic activities are activities that require
high levels of energy and are done for only a few
seconds or minutes at a high level of intensity.
• Anaerobic fitness is higher levels of muscular
strength, muscular endurance, and physical
fitness.
• Example of anaerobic activities include, running
up two flights of stairs, sprinting 40 yards, or
doing a fast break in basketball.
Types of Aerobic Activities
• There are a wide range of different aerobic
activities. These can be done alone, in a group, at
home, or at a fitness facility.
–
–
–
–
–
–
–
Walking
Jogging and Running
Bicycling
Aerobic Dance
Kickboxing
Cross-Country Skiing
Water Activities
Cardiovascular Fitness Equipment
• There are many choices for equipment geared
for cardiovascular fitness.
– Treadmills
– Stationary Bicycles
– Stair-Steppers
– Cross-Country Ski Machines
– Elliptical Motion Trainers
– Swimming Pools