All rights reserved Presentation Package for Concepts of Physical Fitness 12e Section III: Concept 08 Cardiovascular Fitness Created by: Gregory J. Welk Iowa State University Cardiovascular Fitness 2 "Cardio" = heart "Vascular" = vessels Concepts of Physical Fitness 12e Synonyms of Cardiovascular Fitness Aerobic fitness Cardiovascular endurance Cardiorespiratory fitness See Web08 (click 01) for information on cardiovascular physiology 3 Concepts of Physical Fitness 12e Laboratory Tests of Cardiovascular Fitness The best indicator of cardiovascular fitness See Web08 (Click 02) for info on VO2 max 4 Concepts of Physical Fitness 12e Lab 8b info 5 Field Tests of Cardiovascular Fitness 12 minute run 1 1/2 mile run Step test Bike ergometer test Rockport walk test See Web08 (Click 05) for info on field tests Concepts of Physical Fitness 12e Cardiovascular System Images of the CV system come up with subsequent clicks Muscles send deoxygenated blood to heart Heart sends deoxygenated blood to lungs Lungs oxygenate the blood Heart sends oxygenated blood to body 6 Concepts of Physical Fitness 12e Characteristics of Blood Vessels Arteries pump oxygenated blood and have muscular, elastic walls that promote good circulation 7 Veins carry de-oxygenated blood and rely on pumping action of muscles to move blood Concepts of Physical Fitness 12e Pulse Arteries have elastic walls and stretch as the blood moves through the vessel. This is what is felt as the pulse. Pulse 8 Concepts of Physical Fitness 12e Pulse Wave Aortic Notch 9 Systolic Indicates the elastic nature of the vessels Diastolic The elastic properties of the vessels promotes good circulation. Concepts of Physical Fitness 12e Measurement of Blood Pressure 10 Measurement is done with a device known as a sphygmomanometer Concepts of Physical Fitness 12e Measurement of Blood Pressure Systolic BP First sounds heard as blood passes by CUFF INFLATED 11 Diastolic BP No sounds heard because cuff pressure is lower than blood presssure CUFF DEFLATED Concepts of Physical Fitness 12e Click here for more info on hypertension 12 Systolic Diastolic Blood Pressure (Normal Values) 120 mm Hg 80 mm Hg Concepts of Physical Fitness 12e FIT Formula for Cardiovascular Fitness 3-6x per week HR in target zone At least 20 minutes 13 Concepts of Physical Fitness 12e Target Zone: CV Fitness TOO MUCH FITNESS THRESHOLD FOR FITNESS INACTIVITY TARGET ZONE: F: 3-6x per week I: 40-85% HR reserve 55-90% Max HR T: 20-30 min CONCEPTS OF FITNESS AND WELLNESS Calculating Target Heart Zones Maximum heart rate method Working heart rate method Click on icon for examples for calculating target zones with both approaches. The same basic information is used for both to allow for comparisons of results. (e.g. 22 years old with a resting heart rate of 68 bpm) 15 Concepts of Physical Fitness 12e Location for Pulse Carotid artery 16 Radial artery Concepts of Physical Fitness 12e Lab 8a info 17 Factors in Pulse Monitoring Short time (10-15 seconds) Locate quickly Typical of the exercise bout HR monitors can provide a continuous record of heart rate during your exercise. Concepts of Physical Fitness 12e Lab 8c info 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 18 Ratings of Perceived Exertion VERY VERY LIGHT VERY LIGHT FAIRLY LIGHT SOMEWHAT HARD HARD Target Zone for using RPE VERY HARD VERY VERY HARD Concepts of Physical Fitness 12e Summary of Target Zones for Aerobic Exercise TARGET ZONE THRESHOLD OF TRAINING 55-90% of maximum heart rate 40-85% of heart rate reserve 12 - 16 on RPE scale 55% of maximum heart rate 40% of heart rate reserve 12 on RPE scale INACTIVITY 19 Concepts of Physical Fitness 12e Web Resources Online Learning Center “On the Web” pages for Concept 20 Concepts of Physical Fitness 12e Supplementary Graphics Lab information Information on blood pressure Detailed examples of Target Heart Rate calculations Lab 8a Information Return to presentation 22 Counting Target HR Practice counting pulse (carotid / radial) Estimate threshold of training (low) Estimate target zone for training (range) Check pulse after two bouts of running (or other form of exercise) Concepts of Physical Fitness 12e Return to presentation Lab 8b Information Evaluating CV Fitness Perform at least one test of CV fitness test and rate your current level of fitness (Note: performing more than one test is recommended in order to get a more valid assessment) 23 Interpret the results of your fitness based on your current level of activity Concepts of Physical Fitness 12e Return to presentation Lab 8c Information Ratings of Perceived Exertion Record threshold and target zones for training Perform a series of exercise bouts at different paces for at least 3 minutes (paces should cover range of intensities) 24 Check heart rate and provide RPE score after each Once you know your RPE for target zone you can use it in training Concepts of Physical Fitness 12e Click for more info on BP values Return to presentation 25 120 120-140 140-180 180+ Blood Pressure Range of Systolic Values Normal Borderline At risk! Treatment! Concepts of Physical Fitness 12e Click for more info on BP values Return to presentation Dangers of High BP Coronary heart disease Stroke See info from the National Stroke Association 26 Concepts of Physical Fitness 12e Return to presentation 27 Causes of High BP Age Race Heredity Diet Stress Inactivity Concepts of Physical Fitness 12e Maximum Heart Rate and Aging Maximum HR = 208 – (.7* age) HR Ex for a 22 yr old: 200 190 180 170 160 Max HR = 208 – (.7 * 22) = 208 – 15.4 = 193 20 30 40 50 60 AGE 28 Concepts of Physical Fitness 12e Maximal Heart Rate Method (example for a 22-year-old person) MAX 198 174 HR 106 TARGET ZONE 90% 55% 0 29 Concepts of Physical Fitness 12e Resting HR and Fitness Resting HR decreases because the heart is stronger HR 90 80 70 60 50 LOW HIGH FITNESS 30 Concepts of Physical Fitness 12e Heart Rate Reserve Method (Sample calculations: 22-year-old w/ resting hr of 68) 193 MAX Working Range = HR 125 bpm 68 85% TARGET ZONE 40% REST 0 31 Concepts of Physical Fitness 12e Working Heart Rate (Sample calculations: 22-year-old w/ resting hr of 68) Max HR - Rest HR = Heart Rate Reserve (HRR) 193 - 68 40% of HRR 85% of HRR = 125 = 50 = 106 Lower Limit = 50 + Rest HR (68) = 118 Upper limit = 106 + Rest HR(68) = 174 32 Concepts of Physical Fitness 12e HR Target Zones HR UPPER LIMIT 174 118 THRESHOLD TIME Note: This range is fairly large. By taking into account current fitness level it is possible to have a more specific range. 33 Concepts of Physical Fitness 12e Prescriptions Based on Current Fitness Level Fitness Level Low Frequency 3 Intensity (%HRR) 40-50 Time (min) 10-30 Marginal 3-4 50-60 20-40 Good 5 60-85 30-60 If an individual has a low level of fitness they could work at the low range of the target zone and still get benefits. 34 Concepts of Physical Fitness 12e Return to presentation HR Target Zones HR 179 130 118 50% 40% THRESHOLD TIME 35 Note:This range was calculated assuming the person had a low level of fitness. The values would be different if different ranges were used. Concepts of Physical Fitness 12e