Which of the following is the most appropriate method of pre

Which of the following is the most appropriate method of prescribing exercise intensity in a person with CHD who is currently taking beta-blockers?
a. standing HR + 50 beats · min-1
b. Karvonen\'s formula using an age-predicted HRmax
c. THR method when the measured HRmax is determined while the patient is on beta-blocking medications
d. percent HR max method when the measured HRmax is determined while the patient is off beta-blocking medications

Solution

Answer: c. THR method when the measured HRmax is determined while the patient is on beta-blocking medications

Reason:

Normally beta-blockers in treating coronary heart disease is often lowers heart rate-max (HRmax). Therefore, the most appropriate method of prescribing exercise intensity in a person with CHD who is currently taking beta-blockers (atenolol, pindolol, timolol)is target heart rate (THR) method because it can adequately meet heart rate and VO2max during exercise intensity or uneven heart rate in patients with CHD. Therefore, THR method is going to validate heart rate during exercise