Transcript UNIT 1 – PERSONAL HEALTH

UNIT 2 – NUTRITION &
FITNESS
2.1 FITNESS
CHAPTERS 4.1/4.2
Standard 2
 Objective 2
 a. Describe the elements of physical fitness
 b. Develop strategies for maintaining life-long fitness and
avoiding the consequences of inactivity
 c. Identify and investigate available fitness resources
 Objective 3
 b. Explore the short and long term effects of poor nutrition
and inactivity
 c. Evaluate the strengths and weakness of various body-weight
indicators
What is Physical Activity?
 Physical Activity – Any
form of movement that
causes your body to use
energy.
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Example: sports, walk the
dog, wash the car
What physical activities do
you include in your daily
routine?
 Physical Fitness –
Ability to carry out daily
demands and have enough
energy to respond to
unexpected demands.
Benefits of Physical Activity
 Physical Health
 Cardio Vascular System – Strengthens heart
 Respiratory System – Increases lung capacity and improves
endurance
 Nervous System – Increases reaction time
 Mental/Emotional Health
 Improves concentration
 Reduces stress
 Increases self-confidence about the way you look and feel
 Social Health
 Opportunity to interact and socialize with others that have the
same interests as you
Easy Steps To Be More Active
 Take stairs instead of the elevator.
 Play sports instead of video games.
 Walk, Jog, or Bike to where you need to go.
 Be active around the house. (Mow the lawn,
gardening, wash the car, etc.)
Risk of Inactivity
 Sedentary Lifestyle – Way of life that involves
little to no physical activity.
**COUCH POTATO**
Sedentary Lifestyle Risks
 Obesity: having an excess amount of body fat
 Overweight: condition in which a person is
heavier that the standard weight range for his or
her height.
 15%
of teens are overweight
 Caused by consuming too many calories and inactivity
 Increased risk of type 2 diabetes, asthma & cancer
 Diabetes – disease that prevents the body from
converting food into energy.
Risks Associated with Weight
 Underweight: a person is less than the standard
weight range for his or her height.
 Decreased
ability to fight diseases
 Chronic fatigue
 Osteoporosis – decrease in bone density
producing fragile bones.
Weight Control
 Metabolism – how the food you eat, gives energy to
your body.
 Increase in Physical Activity = Increase in
Metabolism
 Increase in Metabolism = More energy burned/used
 More energy used = Increase in weight loss
Body Composition & BMI
 Body Composition – Ratio of body fat to lean
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body tissue.
How much of your body is composed of fat and how
much is everything else?
Males- 25% or more
Equals risk of
cardiovascular disease
Females- 30% or more
Body Mass Index (BMI)- a ratio that allows you
to assess your body size in relation to your height
and weight.
Body Composition Tests
 Hydrostatic Weighing
 Skinfold Calipers (easiest)
 Bod Pod (most accurate)
QuickWrite
COMPARE AND CONTRAST
WRITE ONE PARAGRAPH COMPARING THE
EFFECTS OF A PHYSICALLY ACTIVE
LIFESTYLE TO THOSE OF A SEDENTARY
LIFESTYLE.
Elements of Fitness
 Everyone has a different level of physical
fitness
 There are five elements
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Cardio Respiratory Endurance
Muscular Strength
Muscular Endurance
Flexibility
Body Composition
Elements of Fitness Cont.
 Cardio Respiratory Endurance – ability
of heart and lungs to provide oxygen to the
tissues during long periods of exercise.
 Cardiovascular disease is the leading cause of death
in the U.S.
 Keeping your heart healthy, prevents disease

Can you run a mile without stopping? Or hike without getting
tired?
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Step Test Activity
Elements of Fitness Cont.
 Muscular Strength – the amount of force a
muscle can exert.
 Muscular Endurance – how long a muscle can do
an activity before it gets fatigued.
 For activities that involve pushing,
lifting or jumping
 Allows you to carry out your daily
tasks without getting fatigued.
Elements of Fitness Cont.
 Flexibility- the ability to move a body part
through a full range of motion.
 Benefits of being flexible:
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Increase athletic performance
Feel comfortable
Reduce the risk of strains and injuries

Sit and reach test
 What sports or activities require a great deal of
flexibility?
Assignment
 PG 79 #1-5
 PG 86 #1-5