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Chapter 10

Chapter 10. Measuring Exercise, Physical Activity, and Health. Describing/Prescribing Exercise — Characteristics to Specify. How often to exercise (frequency) How long to exercise (duration) What type of exercise (mode) How hard to exercise (intensity). How to Measure Intensity.

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Chapter 10

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  1. Chapter 10 Measuring Exercise, Physical Activity, and Health

  2. Describing/Prescribing Exercise—Characteristics to Specify • How often to exercise (frequency) • How long to exercise (duration) • What type of exercise (mode) • How hard to exercise (intensity)

  3. How to Measure Intensity • Measure heart rate: • Heart rate watches • EKGs • Use the Borg rating of perceived exertion (RPE) scale • Measure metabolic rate: • Calorimetry • Indirect spirometrycalorimetry • Other expressions of metabolic rate

  4. Expressions of Metabolic Rate • Kilocalories (Kcals): • Typical metabolic rate at rest: 1.25 Kcal/min • Recommended level of activity for health benefits: 150–200 Kcals/day • Metabolic equivalents (METs) • Multiples of the resting VO2 level • One MET = 3.5mL • kg body weight-1 • min-1 • A four-MET exercise intensity = 14 mL • kg-1 • min-1

  5. Activity Av. METs Playing basketball 8.0 Boxing/sparring 9.0 Dancing (social) 4.8 Fencing 6.0 Playing golf 4.5 Hiking 7.0 Ice skating 7.0 Activity Av. METs Jazzercise 6.0 Jumping rope (moderately) 10.0 Running 8 m.p.h. 13.5 Snow skiing (downhill; moderate) 6.0 Tennis 7.0 Selected Physical Activities in METs(adapted from Housh, 2006)

  6. Tools for Measuring Physical Activity • Pedometers • Accelerometers • Physical activity surveys

  7. Examples: Seven-Day Physical Activity Recall CARDIA Physical Activity History Framingham Physical Activity Index What they try to determine: Frequency of activity Type of activity Duration Intensity Surveys

  8. Your Viewpoint • If you were developing a physical activity questionnaire for the other students in your class, what would you ask? • How would you evaluate the results? • How could you determine objectivity, reliability, and validity? • How would you alter the questionnaire for second-grade students?

  9. Measuring Health • Measuring key health indicators can identify potentially serious health conditions. • Overall health assessment: • Physical activity and fitness • Blood pressure, cholesterol, and body temperature • Nutrition

  10. Sample Dietary Recall Survey • On average, how many times per week do you eat a green salad? • How many times per week do you eat potatoes (not including fries or potato chips)? • How many times per week do you eat carrots? • How many servings of vegetables (not including salad, potatoes, or carrots) do you eat per week? • How many times per week do you drink fruit juices? • How many times per week do you eat fruit (rather than drink fruit juice)?

  11. The Exercise Prescription Before prescribing exercise, obtain information to help make sure the client/ patient sticks to the exercise program: • Medical status/health history • Fitness level/exercise history • Exercise preferences and interests • Exercise goals

  12. Physical Activity Readiness Questionnaire (PAR-Q) • A popular, practical method for screening a person’s readiness for exercise • Go to: http://www.phac-aspc.gc.ca/sth-evs/english/parq.htm

  13. Health Status Questionnaire

  14. Health Status Questionnaire(continued)

  15. Physical Activity Interests and Preferences Survey • What exercises have you done in the past? • Did you enjoy those forms of exercise? • Why did you stop? • What type of exercise sounds most appealing to you now? • Are you interested in socializing while you exercise? • Are you interested in competition? • Are there any types of exercise that you already know don’t appeal to you?

  16. Your Viewpoint • Your father is worried because he has a family history of heart disease and thinks he’s working too much, eating too much junk food, and not exercising enough. • What do you do to help him determine his readiness for a fitness program?

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