Exercise testing Flashcards
what does an exercise stress test reflect?
current fitness level
what 5 things does the exercise stress test determine?
- clinical maximum
- peak HR
- peak Vo2
- exercise capacity
- angina threshold
what is the Bruce protocol?
O2 requirements at stages of cardio
What will affect the predictions of the bruce protocol?
Peoples movement/gate patterns
why might ST elevation be a problem in a stress test?
Signs of a heart attack
why might heart block be a problem in a stress test?
loss of synchrony between atria and ventricles
why might hypotension be a problem in a stress test?
because it’s indicating CO is starting to fail
what does the sensitivity of a stress test mean?
% with disease who have abnormal results
what does the specificity of a stress test mean?
% without disease who have normal results
what is the sensitivity and specificity of stress test for diagnosis of CAD?
70%
How do you calculate training zone for clinical individual?
40-80% of the peak HR value
How do you calculate heart rate reserve (HRR)?
HRR = (predicted max HR - resting HR) + resting HR
what is essential when working with post MI patients?
- long warm up period to promote vasodilation
- mixture of aerobic and resistance exercise
- exercise intensity 50-80% of peak HR
- intermittent exercise is better tolerated
what are the two special considerations for CABG patients?
- ensure that sternal and leg wounds are well healed and free of infection
- exercise programmes should start 6 weeks post-surgery
what for of training in better tolerated by CABG patients?
circuit interval training
how should we progress?
10% every 2 weeks, duration and then intensity
which two conditions might medications improve exercise capacity?
- atrial fibrillation
- chronic heart failure
when are beta-blockers normally used?
recovery stage of a heart attack
what can beta-blockers promote feelings of?
fatigue in the leg and reduced blood flow in the lungs
what will happen to HR in those receiving beta blockers?
it will be lower
what might calcium channel blockers do?
lengthen PR interval - facilitating ventricular filling
what do nitrates do?
increase angina threshold
what do diuretics do?
- lower potassium levels
- possible hypovolemia
how many METS is golf?
4-7
what is the benefit of bowls?
improve co-ordination, flexibility and confidence
