Your target heart rate should be between 75-85% of your max heart rate. To find your max heart rate you take 220 and subtract your age from it to get your max heart rate. Then you can find your target heart rate easily by taking a calculator, typing in your max heart rate, and then type in "subtract (-) 15%". Record that number on a piece of paper of some sort. Then retype your max heart rate and then type in "subtract(-) 25%". Also record that number down on the same piece of paper you wrote the original number on and put a dash (-) between the numbers. This will show you the two numbers your target heart rate should be in-between.
Your heart recovery time is the time it takes you to get from your max heart rate to your resting heart rate.
220 - age gives you your target heart rate.
you die.
That completely depends on your physical condition.
50% of your Max Heart Rate = ( example 90 beats per min ) 60% of your Max Heart Rate = ( example 108 beats per min ) 70% of your Max Heart Rate = ( example 126 beats per min ) 80% of your Max Heart Rate = ( example 144 beats per min ) 90% of your Max Heart Rate = ( example 162 beats per min ) 100% of your Max Heart Rate = (example 180 beats per min.) 50% of your max heart rate is considered a light exersise(walking, slowly biking,ect). 75% of your max heart rate is considered a moderate exersise(Jogging,basketball,ect). Your max heart rate or near your max is considered a heavy, intense activity that makes you huff and puff and your heart is pounding very rapidly (sprinting, track and feild races, ect).
Maximal heart rate is the highest number of times per minuet that your heart could contract within one minuet. A heart rate for an senior is about 120- 160 BPM
run in place for 1000 sec.
Your average pulse rate should be between 60-100 beats per minute. The two numbers refer to your resting heart rate and your max heart rate. While the resting heart rate is typically what people refer to when monitoring pulse rates, the max heart rate can be measured by using a heart monitor while engaging in several minutes of rigurous exercise. You can more about resting and max heart rates online at http://www.webmd.com/heart-disease/pulse-measurement?page=2 and http://www.marathonguide.com/training/articles/HeartMonitorTraining.cfm.
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That would be out of the average range, but it can very well be "normal" for you. Max heart rate is an individual thing.
220-age Example. Im sixteen so my max heart rate would be 220-16=204 bpm