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 Release 22.0, Sept. 2008
 
Chapter : ch36. Physical & Sports Medicine Section : Exertion and Heart Rate During Exercise
  Target Heart Rates During Exercise

  Online Excel Online Algorithm Reference
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Overview :

Patients exercising at the correct intensity should have a heart rate within a given target range.

 

maximum heart rate for a given age =

= 220 - (age in years)

 

Method 1

 

lower limit for target heart rate =

= ((maximum heart rate for age) * (lower limit percentage for age))

 

upper limit for target heart rate =

= ((maximum heart rate for age) * (upper limit percentage for age))

 

where:

• In the elderly, the lower limit percentage is 60% and the upper limit percentage is 75%.

 

Method 2: Heart Rate Reserve (Karvonen) Formula

 

lower limit for target heart rate =

= (((maximum heart rate for age) - (resting heart rate)) * 0.60) + (resting heart rate) =

= (0.60 * (maximum heart rate for age)) + (0.40 * (resting heart rate))

 

upper limit for target heart rate =

= (((maximum heart rate for age) - (resting heart rate)) * 0.75) + (resting heart rate) =

= (0.75 * (maximum heart rate for age)) + (0.25 * (resting heart rate))

 

  References:

Cearlock DM, Nuzzo NA. Evaluating the benefits and hazards of exercise in the older adult. MLO. June 1997. pages 40-49.

Rimmer JH. Fitness and Rehabilitation Programs for Special Populations. WCB Brown & Benchmark Publishers. 1994.

 

 

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