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© 2012 McGraw-Hill Higher Education. All rights reserved.
Chapter 13
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© 2012 McGraw-Hill Higher Education. All rights reserved.
The body’s ability to respond or adapt to the demands and stress of physical effort
Five components of health-related fitness: Cardiorespiratory endurance Muscular strength Muscular endurance Flexibility Body composition
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Cardiorespiratory endurance - ability to perform prolonged, large-muscle, dynamic exercise at moderate to high intensity, depending on the heart and lungs’ ability to deliver oxygen to the bloodstream
Muscular strength - amount of force a muscle can produce with a single maximum effort
Muscular endurance - ability to resist fatigue and to sustain a given level of muscle tension
Flexibil ity - ability of joints to move through their full range of motion
Body composition –proportion of fat and fat-free mass, or the amount of lean body tissue versus body fat
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© 2012 McGraw-Hill Higher Education. All rights reserved.
The ability to perform a particular sport or activity Speed – ability to perform a movement in a short
period of time Power – ability to exert force rapidly, based on a
combination of strength and speed Agil i ty – ability to change the body’s position quickly
and accurately Balance – ability to maintain equilibrium while either
moving or stationary Coordination – ability to perform motor tasks
accurately and smoothly using body movements and the senses
Reaction t ime – ability to respond quickly to a stimulus
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© 2012 McGraw-Hill Higher Education. All rights reserved.
The Centers for Disease Control and Prevention (CDC) 2008 statistics about American adults: About 31% participate in some leisure-time physical
activity Leisure-time physical activity decreased by nearly 6%
between 2003 and 2009 About 40% of Americans participate in no leisure-time
activities People with higher levels of education are more active
than are people with lower educational attainment . . . 54% of college graduates exercise regularly, compared with 37% of high school dropouts
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Any body movement carried out by the skeletal muscles and requiring energy Arranged on a continuum based on the amount of
energy they require
Exercise – a subset of physical activity – planned, structured, repetitive movement of the body
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© 2012 McGraw-Hill Higher Education. All rights reserved.
2008 – DHHS issued Physical Activity Guidelines for Americans with recommendations for promoting health
For substantial health benefits, adults should do at least 150 minutes a week of moderate-intensity aerobic physical activity or 75 minutes of vigorous-intensity aerobic activity
For additional benefits, adults should increase their aerobic physical activity to 300 minutes a week
Adults should also do muscle strengthening activities All adults should avoid inactivity
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Two-thirds of Americans are overweight 150 minutes of exercise per week
may not be enough For weight management, recommend
90 minutes of physical activity per day Increase duration and intensity of exercise ACSM has issued guidelines to develop fitness
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Amount of activity needed depends on individual’s health status and goals
Moderate intensity versus high-intensity exercise
Continuous versus intermittent exercise Goal of 150 minutes per week Raise activity to 300 minutes per week
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Table 13.1 Physical Activity and Exercise Recommendations for Promoting General Health, Fitness, and Weight Management
© 2012 McGraw-Hill Higher Education. All rights reserved.
Reduced risk of premature death Improved cardiorespiratory functioning More efficient metabolism Improved cell health Improved body composition
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© 2012 McGraw-Hill Higher Education. All rights reserved.13
Cardiovascular Disease Metabolic Syndrome
Insulin resistance High blood pressure Abnormal blood fats Abdominal fat deposits Type 2 diabetes Blood clotting abnormalities Blood vessel inflammation
Blood fat levels Improves blood fat levels - improves HDL Improves blood pressure
High blood pressure Coronary heart disease Stroke
Cancer Osteoporosis Type 2 diabetes
© 2012 McGraw-Hill Higher Education. All rights reserved.
Reduced anxiety Reduced depression and improved mood Improved sleep Enhanced self-esteem, self-confidence, and self-
efficacy Enhanced creativity and intellectual functioning Improved work productivity Increased opportunities for social interaction
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Improved immune function Prevention of injures and low-back pain Improved wellness for life
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© 2012 McGraw-Hill Higher Education. All rights reserved.
The best exercise program has two primary characteristics:
It promotes your health It ’s fun!
Physical activity pyramid Work up to goals Move to next level of pyramid
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Medical Clearance Men over 40 and women over 50
Basic principles of physical training Specificity Progressive overload
Frequency Intensity Time Type
Reversibility Individual differences
Selecting activities
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Frequency: 3-5 days per week Intensity within your target heart rate range
Maximal oxygen consumption (VO2max) Target heart rate range
Refer to Take Charge: Determining Your Target Heart Rate Range in your textbook on page 389
Time (Duration): 20-60 minutes Warm-up and cool-down Stretching: best after the active part of your
workout
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Types of strength training exercises Resistance exercise
Isometric (static) exercise Isotonic (dynamic) exercise
Choosing equipment Choosing exercises Frequency Intensity Time (Duration)
A caution about supplements
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Proper stretching technique Static Dynamic Ballistic (bouncing) is dangerous Active Passive
Frequency Intensity Time (Duration)
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Final component in your fitness program Learn the skills required for your choice of sport
Get instruction from a qualified instructor Refine technique Get over stumbling blocks Perhaps relearn skills you may have learned incorrectly
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Cardiorespiratory endurance At least 20-60 minutes In your target heart rate range 3 to 5 days a week
Muscular strength and endurance Major muscle groups (8-10 machines, one or more sets) 2 or 3 nonconsecutive days a week
Flexibility exercise 2 or 3 days a week (ideally 5-7 days) After exercise when muscles are warm
Skill training
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Select instructors, equipment, and facilities Find help and advice about exercise Select equipment Choose a fitness center
Eat and Drink for Exercise. Balanced diet Drink before and during exercise Drink 2 cups of water 2 hours before exercising
Manage your fitness program Start slowly, get in shape gradually Beginning phase Progress phase Maintenance phase Consistency: the key to physical improvement
Assess your fitness Check endurance from your time for the 1.5 mile run-walk test
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Care for injuries with “R-I-C-E” Rest Ice Compression Elevation
Basic guidelines1. Stay in condition2. Warm-up and cool down3. Use proper body mechanics4. Don’t exercise when ill5. Use proper equipment6. Don’t return to normal exercise program until athletic
injuries have healed
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© 2012 McGraw-Hill Higher Education. All rights reserved.
Chapter 13
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