Transcript Physical Fitness For Life Chapter 4

Physical Fitness For Life
Chapter 4
• Physical Activity = any
form of movement
that causes your body
to use energy.
• Physical Fitness = the
ability to carry out
daily tasks easily and
have enough reserve
energy to respond to
unexpected demands
Benefits of Physical Activity
• Physical
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–
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Cardiovascular system
Respiratory system
Nervous system
Muscular and Skeletal system
• Mental/Emotional
– Reduce stress
– Decrease Depression
– Decrease Mental Fatigue
Moods
Self-confidence
• Social
– Social situations
– Interaction/cooperation
Relationships
Effects of Exercise on the Brain
• Dr. John Ratey = clinical professor of
psychiatry @ Harvard University
• Exercise increase production growth in
BDNF (brain-derived neurotrophic factor) =
Miracle-Gro for the brain.
– Encourages creation of new nerve cells.
– Anxiety, stress, depression, concentration
• “A 12 minute walk is like taking a little bit of
Ritalin and a little bit of Prozac”.
Negative Effects of Sedentary
Lifestyle
• Unhealthy weight
gain, linked to
– Cardiovascular
Disease
– Type II Diabetes
– Certain Cancers
– Osteoporosis
– Inability to handle
stress
– Decrease in social
skills
Elements of Fitness
• Cardiovascular Endurance = heart, lungs
and blood vessels send furl and oxygen to
body tissues during long periods of
moderate-vigorous activity.
• Muscular Strength = amount of force a
muscle can exert.
• Muscular Endurance = muscles ability to
perform tasks over a period of time without
fatigue
Elements (cont.)
• Flexibility = ability to move a body part
through a full range of motion (ROM).
• Body Composition = ratio of body fat to
lean muscle tissue.
The workout
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F = frequency: How often?
I = Intensity: How hard?
T = Time/duration: how long?
T = Type of activity
• Target Heart Rate = number of times a
heart should beat in one minute during a
strenuous workout to benefits.