With regard to patients having undergone percutaneous coronary interventions or revascularisation procedures , it is uncommon in the UK for these patients subsequently to have an exercise ETT. These patients may, however, have been through an exercise test recently, prior to their revascularisation and hence these data will still have some valuable information re?ecting functional capacity for exercise intensity prescription purposes. Communication with the relevant physician or surgeon is required to qualify the success of the procedure in terms of recti?cation of exertionrelated ischaemia, arrhythmias or myocardial performance. In the absence of an exercise ETT, sub maximal tests can be used to assess functional capacity54 Exercise Leadership in Cardiac Rehabilitation and subsequently set target intensity, including heart rate. Such tests are limited as a valid means for risk strati?cation, diagnosis or prognosis. If a PCI or revascularised patient does develop symptoms over time associated with ischaemia, arrhythmias or myocardial dysfunction, an exercise stress test and other related tests are advisable.
HEART RATE TARGET ZONES Having a close estimate, or better still an actual maximal heart rate,will greatly increase the accuracy and appropriateness of the exercise intensity being prescribed.However, as described above, in many cases a true maximal heart rate will not be available. This next section focuses more closely on the setting of target zones or exercise heart rates in light of two aspects: The safety threshold for preventing myocardial complications on exertion; The effective threshold for attaining bene?cial physiological adaptations, which is linked to the patient’s training status.The training status in?uences the heart rate relationship with both %VO2max and the
No related posts.
Related posts brought to you by Yet Another Related Posts Plugin.
0 comments ↓
There are no comments yet...Kick things off by filling out the form below.
Leave a Comment