Aprioriathletics.com Polar USA: Who needs a Heart Rate Monitor? | Reasons for HRM TARGET HEART RATE RANGE CALCULATION The Target Heart Rate Range is used as a guide to train at specific levels for the following considerations: Safety for the heart to help prevent overload and reduce risk of cardiac problems.* Physical Conditioning to measure intensity of workouts to prevent under- or overtraining. Optimal training requires understanding of the integral relationship of intensity and duration. Promote fat loss by exercising at a lower intensity level. Common intensities for the lower limit are 55% or 60%. Exercise below these levels does not provide optimal cardiovascular training effect, but still can have health benefits. Common intensities for the upper limit are 70% to 85%. Exercise above these levels results in greater risk to the cardiovascular system and other systems of the body. Continuous exercise above these limits may cause overtraining and injury. *ALL CARDIAC CONSIDERATION OF TARGET HEART RATE RANGE MUST BE DIRECTED BY A CARDIOLOGIST. Many other considerations, such as onset of symptoms, musculoskeletal conditions, metabolic conditions, arrhythmias and medications are considered when determining a Target Heart Rate Range. Other diseases or medical conditions may also require physician directions regarding Target Heart Rate Range. See your physician to avoid the risk of injury or death. Please read the Disclaimer. Karvonen Method of Target Heart Rate for Apparently Healthy Individuals Male Lower Limit of Target Heart Rate Range Enter your age: Enter your resting heart rate: Enter your lower limit percentage, such as 55%, 60% (e.g., .55, .60): Click calculate to see the lower limit of your Target Heart Rate Range:                Your result: Beats per Minute   Male Upper Limit of Target Heart Rate Range Enter your age: Enter your resting heart rate: Enter your upper limit percentage, such as 70%, 85% (e.g., .70, .85): Click calculate to see the upper limit of your Target Heart Rate Range:                Your result: Beats per Minute   Female Upper Limit of Target Heart Rate Range Enter your age: Enter your resting heart rate: Enter your lower limit percentage, such as 55%, 60% (e.g., .55, .60): Click calculate to see the lower limit of your Target Heart Rate Range:                Your result: Beats per Minute   Female Upper Limit of Target Heart Rate Range Enter your age: Enter your resting heart rate: Enter your upper limit percentage, such as 70%, 85% (e.g., .70, .85): Click calculate to see the upper limit of your Target Heart Rate Range:                Your result: Beats per Minute   Here is the calculation (Heart Rate Reserve Method or Karvonen Formula) used in the form above to calculate Target Heart Rate (THR) for apparently healthy individuals. The example shows a calculation of 50 to 85% Heart Rate Reserve): Determine Maximal Heart Rate (HRmax): Males 220-age; Females 226-age Determine Standing Resting Heart Rate (HRrest): Take pulse; record per minute Calculate Heart Rate Rate Reserve: HRmax - HRrest Use the following equations to calculate the lower and upper ranges of the Target Heart Rate Range: THR50% Heart Rate Reserve = (HRmax - HRrest) * .50 + HRrest THR85% Heart Rate Reserve = (HRmax - HRrest) * .85 + HRrest   EXAMPLE: For male age 40 with HRrest of 72 beats per minute HRmax = 220 - 40 = 180 Heart Rate Reserve = 180 - 72 = 108 (You don't really need to calculate Heart Rate Reserve separately since it is part of the equation below: THR50% Heart Rate Reserve = (180 - 72) * .50 + 72 = 126 THR85% Heart Rate Reserve = (180 - 72) * .85 + 72 = 164 THR Range = 126 to 164 beats per minute   Normal Vital Signs PATIENT AGE HEART RATE RESP RATE SYSTOLIC BP INFANTS <1 YR 120-160 40 80 TODDLERS 1-3 YRS 90-140 40 84 PRESCHOOLERS 3-6 YRS 80-110 30 86-92 GRADE SCHOOL 6-12 YRS 75-100 20 92-100 HIGH SCHOOL 12-18 YRS 60-100 20 100-120 ADULTS >18 YRS 60-100 16 110-140 HOME | Site Map | Center Stage | Our Solutions | Our Satisfied Clients | Fitness Topics PFP Newsletter | Company Profile | Contact Information | Help | Glossary | ?Mark | About the Author | Disclaimer ©Copyright 2000 Apriori, Inc. All Rights Reserved. APRIORIATHLETICS and Progressive Fitness Personality are Service Marks of Apriori, Inc. All products mentioned are trademarks or registered trademarks of their respective owners.