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
