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How do you define physical fitness?
-The ability to carry out daily activity w/o undue fatigue.
-The ability to perform physical activity required to function daily. Occupational, Recreational, Emergency
Can we define “fitness” in a way that will include people of all ages?
Absolutely!
Is “fitness” a dirty word in this country?
-Fitness can have a negative connotation among members of the "lay" public.
-Messages help people to form opinions regarding fitness.
-People assume being fit means looking or being like models on the cover of magazines.
Physical Fitness:
-is a multi-dimensional state of being.
-Body's ability to function efficiently & effectively.
-Not the same as physical health & wellness.
AMERICANS AT INCREASED CAD RISK
Physical Fitness - Defined:
The ability to carry out one’s daily activities* without undue fatigue.

Occupational
Recreational
Emergency
Physical Fitness:
Multi-dimensional state of being
Body’s ability to function efficiently and effectively
Not the same as physical health and wellness
Physical Fitness cont’d:
Consists of:
5 health-related fitness components
6 skill-related components (aka sports fitness or motor fitness)
2 non-performance components
Specific, but interrelated components
Health Related Fitness:
Cardiovascular endurance
Muscular endurance
Muscular strength
Flexibility
Body composition
Skill Related Fitness:
Agility
Balance
Coordination
Speed
Power
Reaction time
Need for Fitness:
Effective work
Good health
Face emergencies
Enjoyable leisure
Value of fitness
-Look good
-Feel good
-Enjoy life
-Be healthy
Health:
state of being associated with freedom from disease and illness.
Wellness:
the positive component of health; sense of well-being; a process; multidimensional
Health:
The Wellness Continuum – John Travis, M.D.:
Wellness Wheel – J. Greenberg, Ph.D.:
Wellness Wheel –
Wellness is the integration of the different components of total health

High-level wellness occurs when these components are in balance
The Dimensions of Health & Wellness:
Wellness Model: H. Dunn, Ph.D.
Wellness Model – Donald Ardell:
Components:
Physical Activity
Sound Nutrition
Stress Management

Central Theme (axle of wheel):
Self-Responsibility
What do all of the models have in common?
Individual behaviors influence health
 SELF-RESPONSIBILITY!
Prevention of illness is a common thread
How would these concepts relate to treatment for illness?
Do you have clients or family members who are dealing with illness? Do wellness models apply to them?
Healthy People 2010 National Health Goals:
Increase the span of "healthy" life
Eliminate health disparities
Increase access to information and services for all people
Years of Healthy Life:
Health Life Expectancy for North America:
Achieving Wellness:
Wellness is the product of healthy lifestyles just like fitness is the product of regular exercise

Wellness reflects how one feels about life as well as one’s ability to function effectively
The Integration of Wellness Dimensions:
Priority Lifestyles for Good Health:
Three priority areas:
1) Physical Activity, 2) Healthy Eating, 3) Managing Stress

Reasons why these lifestyles are especially critical:

They affect the lives of all people
Many people can make improvements

Small changes can have a major impact on individual and public health
Value of Fitness Assessments:
Indicate areas needed for improvement in health, fitness, or performance

Provide baseline marker to track progress in exercise programs

Promote personal knowledge about skills and abilities
Factors to Consider Prior to Physical Activity:
Medical readiness for physical activity (PAR-Q) Physical Activity Readiness Questionaire.

Other Pre-participation issues?
medications, injuries, health history, family health issues, surgeries, cancer, pregnancy.
Proper equipment and shoes
PRE-PARTICIPATION SCREENING : MAJOR COMPONENTS:
MEDICAL HISTORY
MEDICATION (could affect heart rate)
INFORMED CONSENT (keeps liability on athlete & protects trainer)
WARNING OF CATASTROPHIC INJURY (for tests & activites)
WAIVER OF LIABILITY

CARDIOVASCULAR RISK STRATIFICATION
PAR-Q
RISKO (AHA)

MEDICAL EXAMINATION (WHEN NECESSARY)
(PARmedX)
Medical clearance form

4 MET Capacity = 3.5 ml/kg (bw) is 4 X's resting expenditure.
ACSM Guidelines:
Because of increased risk, certain individuals should be given a graded exercise test prior to performing vigorous exercise:
Individuals with CHD risk factors (age, family history, high cholesterol, high blood pressure, sedentary lifestyle, smoker, obese, prediabetic)

If a patient has 2 or more risk factors they are limited to moderate intensity & have to have physician clearance. Sub-max test would also require physician clearance.
BMI- greater than 30 is obese.
Clinical Exercise Test (Stress Test):
A stress test can determine whether a person can safely perform exercise.
PAR-Q:
P HYSICAL
A CTIVITY
R EADINESS
Q UESTIONNAIRE
Wearing Good Shoes is Important:
Running
Court
Aerobic
Walking
Tennis
Cross trainers
Factors to Consider During Daily Physical Activity:
Importance of warm-up and cool-down for reducing risk of injuries and soreness

Environmental factors
Survey the physical environment prior to teaching an activity:
Evaluate exercise area for potential issues.

Unsafe conditions?
Lighting
Debris
Surface
Cracks
Slippery surfaces
Unsafe temperature/humidity? ACSM has guidelines. Temperature/dry climate: if someone is not acclimated they should not run in dry/high temp until acclimated.

Unsafe equipment?
Weight room

Proper attire for participants? Not tight or unbreathable
Components of a Workout:
1. Warm-up Athlete vs. non-athlete: needs to be sport-specific. dependent on the type of activity being performed. No static stretching for an athlete pre-exercise. Stretching could decrease power & stamina.

2. Workout

3. Cool-down: needs to be longer form more intense workouts. C.V. warm-up. Involve large muscle movements. Return HR & BP to close to resting rate.
Benefits of a Warm-up:
Elevate intramuscular temp.

Prepare cardiovascular system: increase blood flow to heart & temperature.

Prepare metabolic system: enzymes dependent on energy synthesis depends on temp. & PH levels.

Prepare musculoskeletal system
Components of a Warm-up:
Cardiovascular component

Flexibility component
Age effects the needs of a longer warm-up.

Dynamic stretching could be a part of warm-up for athletes such as soccer & football players.

4-10 minutes minimum warm-up but needs to be much longer for martial arts & rigorous exercises or sports.
Benefits of a Cool-down:
Reduces blood pooling: by maintaining active recovery.

Promotes recovery

Minimizes muscle soreness

Should last same amount of time as warm-up.
Signs of Overexertion:
OBSERVATION:
Profuse sweating
Pallor: pale skin & sign of poor profusion (energy expenditure)
Cyanosis (turn blue)
Ataxia (change in movement pattern)
Stop sweating
silent eschemia (not enough oxygen to the heart but the person doesn't know it) Ex. Iron man comp.

SUBJECT OBSERVES:
Nausea
Dizziness
Light headed
Volitional exhaustion
CHEST PAIN
Feeling faint.
Exercising Safely in Different Environments:
Heat- higher HR
Cold- frostbite
Altitude-less oxygen available & increase HR & lose water more rapidly.
Pollution- inner city. Runners have a high volume of lead in their blood.
VO2 Max =
ml/kg/min.
Heat Related Illness:
Heat cramps
Heat exhaustion
Heat stroke

The severity of heat related illness increases with the degree of dehydration.
Exercise in the Heat:
Avoid high heat/humidity
Replace fluids
Gradual exposure (acclimatization)
Dress properly
Rest frequently
Watch for signs
Exercise in the Cold:
Wind-chill factor
Dress in layers
Effects of Altitude:
Lower partial pressure of oxygen leads to shortness of breath
Cold, dry air promotes dehydration
Acute mountain sickness
Pollution Induces:
Ozone
Pollutants
Allergies
DOMS:
Delayed-onset muscle soreness from micro tears in the muscles.
24-48 hrs after intense exercise.
NOT caused by lactic acid.
Caused by microscopic muscle tears resulting from excessive loads on the muscles.
Occurs when you violate the principle of progression.
Common Injuries:
Sprains - ligaments connect bone to bone
Strains - muscles/tendons connect muscle to bone
Muscle cramps - due to dehydration, need to replace electrolytes, bananas can be eaten, can take magnesium or potassium which are electrolytes.
Treatment of Injuries:
R Rest
I Ice
C Compression
E Elevation
Attitudes about Physical Activity:
Knowing the most common reasons for inactivity can help you avoid sedentary living.
I don’t have time.
It’s too inconvenient.
I do not enjoy it.
Knowing the reasons people give for being active can help you adopt positive attitudes toward activity.
I do activity for health, wellness, and fitness
I do activity to improve appearance
I do activity because I enjoy it.
Preparing for Physical Activity: Summary
General Exercise Guidelines
Choose something you like
Know your limitations
Dress appropriately
Consider the environment
Start slowly
Listen to your body
ACSM Risk Stratification (based primarily on risks due to CHD):
Apparently healthy (1)
Asymptomatic
Only 1 risk factor
Increased risk (2)
Symptoms of CHD
Two or more risk factors
Known disease (3)
Known cardiac, pulmonary or metabolic disease
ACSM Recommendations Is a stress test needed?
Low Moderate High

Risk Risk Risk
RX Intensity
Moderate Ex
No No Yes
Vigorous Ex
No Yes Yes
ACSM Recommendations Is a physician needed?
Low Moderate High

Risk Risk Risk

Submax GXT
No No Yes
Max GXT
No Yes Yes
Physical Activity and Health:
What physical activity can do for health
Reduces risks of many chronic diseases
Promotes weight control
Slows premature aging
Improves quality of life
(Physical activity is not a panacea for all medical conditions but it is probably the best single thing a person can do for their health)
Hypokinetic Conditions:
Cardiovascular disease
Cancer
Back problems
Obesity
Diabetes
Osteoporosis
Mental health
U.S. Disease Patterns
Cardiovascular Disease:
Coronary heart disease (CHD)
#1 cause of death
Stroke
#3 cause of death

According to the American Heart Association, approximately 42% of the population will die from a form of cardiovascular disease
Physical Activity & the Healthy Heart:
Produces a strong heart muscle
Promotes good collateral circulation
Physical Activity & Atherosclerosis:
Lowers blood lipid levels
Increases HDL cholesterol (the “good” cholesterol)
Reduces fibrin deposits (blood coagulation)
Primary Risk Factors for CAD:
Smoking
Hypertension
Blood lipids: High LDL-C, Low HDL-C
High triglycerides
Physical inactivity
Secondary Risk Factors for CAD:
Diabetes and high blood levels of insulin
Family history of CAD
Male sex
Advanced age

Obesity
Modifiable Risk Factors for Coronary Heart Disease:
Smoking
Hypertension
Hypercholesterolemia
Physical inactivity
Overweight / overfat
Inactive People Have:
Twice the Risk of Getting Heart Disease as Active People.

Source: Paffenbarger, R.S., et al. (1984) JAMA 252(4):491.
 
Blair, S.N. et al. – JAMA 1989 from Albuquerque Tribune
Activity Reduces Coronary Heart Disease Risk:
It takes only a moderate amount of physical activity to reduce health risks of CHD
Physical Activity & Other Cardiovascular Diseases:
Reduced risk of high blood pressure (hypertension)
Reduced the risk of stroke
Prevention of peripheral vascular disease
Reduction in CVD deaths
Associated with metabolic syndrome
Metabolic Syndrome (Syndrome X):
Opposite of metabolic fitness, as discussed in Concept 1.
People with ≥ 3 of the following have Metabolic Syndrome:
Blood Pressure above 135/85
Fasting blood sugar level of ≥ 110
Blood triglycerides of ≥ 150
Low blood HDL level (< 40), and/or
High abdominal circumference (≥ 40” for men or 35” for women).
Physical Activity & Other Hypokinetic Conditions:
Cancer
Diabetes
Musculoskeletal Problems
Obesity
Emotional Health
Immune System
Alzheimer’s Disease & Dementia
Cancer:
#2 cause of death
Various types of cancer
Causes still largely unknown
Activity Reduces the Risk of Some Cancers:
Reduced transit time
Decreased risk of colo-rectal cancer
Reduced levels of hormones
Decreased risk of breast cancer and some reproductive cancers
Improved immune system
Reduced levels of body fat
Back Problems:
80% of the population will experience back pain at some point in their life
Back problems are a major cause of inactivity in adults
Activity Reduces Risk of Back Pain:
Improves flexibility of joints and ligaments
Improves musculoskeletal strength and endurance
Obesity:
Over half of the population in the United States is considered to be overweight
Obesity increases the risk of many other diseases
Activity Promotes Weight Control:
Burns calories
Increases rate of metabolism
Promotes fat loss and preserves muscle
Diabetes Mellitus (DM):
Type I (juvenile onset)
Pancreas fails to produce insulin
Type 2 (adult onset)
Lack of sensitivity to insulin
Often caused by obesity
Activity Reduces Risks of Diabetes:
Type 1
Reduces disease risk
Increases quality of life
Type 2
Decreased insulin requirement
Reduced fatness
Osteoporosis:
Progressive loss of bone mineral density
Occurs commonly in old age
Occurs at an earlier age and more frequently in women than men
Factors associated with osteoporosis
Loss of sex hormones
Low calcium levels
Physical inactivity
High protein intake
Smoking
Caffeine
Physical Activity Reduces Risk of Osteoporosis:
Increases peak bone mass
Slows decline in bone mass
Physical Activity Improves Emotional Health:
Reduced depression
Reduced anxiety
Improved sleep (greater ability to relax)
Increased self-esteem
PA & Alzheimer's Disease:
Factors relating to heart health also contribute to brain health.
Studies indicate that PA and challenging mental activities are especially important among the lifestyle factors involved in maintaining brain health and preventing Alzheimer’s disease and dementia.
See In the News for details (p. 80)
Physical Activity & Aging:
Slows aging
Acquired aging (related to lifestyle)
Compression of morbidity
Time-dependent aging cannot be altered
Physical Activity & Wellness:
Good physical fitness and regular physical activity are important for optimal wellness.
Good physical fitness:
helps you enjoy leisure
helps you work more effectively and efficiently
keeps body functioning effectively
is the basis for dynamic and creative activity
can help you function safely and meet emergencies
PA – major part of most employee health promotion programs
Factors that Cannot be Altered:
Age
Heredity
Gender
Factors that Can be Altered:
Physical activity
Diet
Stress
Tobacco use
Body (fatness)
Blood lipids, blood glucose, and blood pressure
Reducing your risk of diseases
Physical Activity Summary:
Regular physical activity and good fitness can promote good health, help prevent disease, and be a part of disease treatment.
Too many adults suffer from hypokinetic diseases.
Many factors that are under your control (lifestyles).
Principles of Exercise Testing:
Validity – the extent to which the test measures what it purports to measure
Example: SKF→subcutaneous fat as a marker of total body fat

Reliability – “reproducibility” of results/consistency
Tester
Instrument
Example: physician’s scale or skin fold caliper
Principles of Exercise Testing continued:
Precise application of protocols is essential to both validity and reliability of results
Motivational benefits of pre-post test comparisons assume that tests were repeated precisely during both (all) testing sessions
Principles of Exercise Testing continued
Select appropriate protocols!
Population specific

Calibrate equipment
Follow protocol instructions carefully!
Don’t overlook the importance of common-sense interpretation of results to patients/subjects
Keep jargon to a minimum!
Components of Fitness:
Health-related vs. Skill-related
Health Related Fitness:
Cardiovascular endurance
Muscular endurance
Muscular strength
Flexibility
Body composition
Skill Related Fitness:
Agility
Balance
Coordination
Speed
Power
Reaction time
Cardiovascular Fitness:
"Cardio" = heart
"Vascular" = vessels
Synonyms of Cardiovascular Fitness:
Aerobic fitness
Cardiovascular endurance
Cardiorespiratory fitness
Cardiovascular System:
Muscles send deoxygenated blood to heart
Heart sends deoxygenated blood to lungs
Lungs oxygenate the blood
Heart sends oxygenated blood to body
Characteristics of Blood Vessels:
Arteries pump oxygenated blood and have muscular, elastic walls that promote good circulation

Veins carry de-oxygenated blood and rely on pumping action of muscles to move blood
Pulse:
Arteries have elastic walls and stretch as the blood moves through the vessel. This is what is felt as the pulse.
Measuring CV Fitness (Laboratory tests):
Submaximal/Maximal
Treadmill walking/running
Cycle ergometry
Leg
Arm
Stair Climbing
Swimming
Measuring CV Fitness (VO2 max test)
The best indicator of cardiovascular fitness
Measuring CV Fitness (Field tests):
12 minute run
1 1/2 mile run
Step test
Cycle ergometer test
Rockport walk test
What are the advantages of field vs. lab tests?
Time
Expense/equipment
Personnel
Accuracy
Selection of Field Tests:
Based on preferred modality (for training)
Based on facility/space/logistics
Measured distance vs. measured time?
Exercise Training