Cardiorespiratory Fitness Testing

1. Cardiorespiratory Fitness Testing Health/Fitness evaluation and Exercise Prescription

2. Cardiorespiratory Fitness Cardiorespiratory fitness, also called cardiovascular or aerobic fitness, is a measure of the heart�s ability to pump oxygen rich blood to working muscles cardio-: refers to heart respiratory: refers to lungs and ventilation vascular: refers to blood vessels aerobic: means with oxygen

3. Cardiorespiratory Fitness Units of Measurement Liters of oxygen used by the body per minute (L . min-1) � absolute measure Milliliters of oxygen used per kilogram of body weight per minute (ml.kg-1.min-1) � relative measure METs, multiples of resting metabolic rate, where 1 MET = 3.5 ml . kg-1 . min-1 Kilocalories used per minute, Kcal . min-1

4. Why Test CRF? Determine physiological responses at rest and during submax and maximal work Provide basis for exercise prescription Screen for cardiovascular disease Determine ability to perform specific work test Motivation

5. Sequence of Testing 1. Informed consent 2. Health history (Wellsoure PWP) 3. Screening (PAR Q, ACSM or similar) 4. Resting CRF, (HR,BP, ECG, blood lipids), body composition 5. Submaximal CRF 6. Tests for low-back function 7. Begin light activity program

6. Assessing RHR and BP

7. Assessing RHR and BP RHR � measure for 1 minute, start counting with zero BP � Laboratory demonstrationCorrect size cuffcorrect placementcorrect inflationcorrect deflationlisten for sounds

8. Field Tests for CRF Require little equipment (stopwatch) Can be done almost anywhere Use running/jogging/walking Can test many people at once

9. 1-Mile Walk Test Individual walks as fast as possible on a measured track Heart rate is measured at the end of the mile.* VO2 max (ml/kg*min) = 132.853 - 0.0769 (BW in lbs) - 0.3877 (Age yrs) + 6.315 (Gender) - 3.2649 (Time min) - 0.1565 (HR bpm) Gender � male = 1, female = 0

10. 1.5 Mile Jog Test Person completes 1.5 miles as fast as possible Formula to compute VO2 max VO2 max (ml/kg*min) = 3.5 + 483/(time in min) Equation from Molly VO2 max (ml/kg*min) = 88.02 � 0.1656 (BW kg) � 2.76 (Time min) + 3.716 (Gender) Gender � male = 1, female = 0 Equation from Molly VO2 max (ml/kg*min) = 88.02 � 0.1656 (BW kg) � 2.76 (Time min) + 3.716 (Gender) Gender � male = 1, female = 0

11. Other field tests 1.0-mile steady-state Jog 12-min Run 15-min Run

12. Graded Exercise Tests (GXT�s)

13. GXT�s Functional capacity can be estimated or measured.Functional capacity can be estimated or measured.

14. GXT�s � cycle ergometer

15. GXT�s � cycle ergometer

16. GXT�s � cycle ergometer

17. GXT�s � cycle ergometer