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Calculating exercise intensity

Published on Aug 13, 2016

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1.

Calculating exercise intensity

Methods for clinical populations
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2.

Methods to calculate target heart rate

  • Heart rate reserve (HRR)
  • VO2 reserve (VO2R)
  • 220 - age x (intensity)
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3.

For this class we will use the Heart Rate Reserve (HRR) method to calculate target heart rate.

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4.

HRR = Max HR (MHR) - resting HR (RHR) x (intensity %) + RHR

MHR is the highest heart rate reached on a maximal exercise test.
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5.

HRR = Max HR (MHR) - resting HR (RHR) x (intensity %) + RHR

RHR is also considered.  
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6.

Results from exercise tests are direct measures and NOT estimates. When maximal exercise test data is available, use it to calculate exercise intensity.

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7.

220-age  = Max predicted heart rate (MPHR)

Easy to use but may over or underestimate max heart rate. Not a direct measure of heart rate.
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8.

220-age  = MPHR

We will not be using this method for calculating THR.
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9.

VO2R = VO2 max - rest VO2 x % intensity + rest VO2

VO2 Reserve is another method for calculating exercise intensity. Workloads (METs) can be measured directly during a maximal exercise test.
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10.

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