EDKP 485 Lecture Notes - Lecture 2: 20 Y.O., Catheter, Ischemia
14 Jan 2017
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1- cpet = should involve large muscle mass exercise. To stimulate cellular respiration sufficiently to stress cardiovascular & respiratory systems. *if test insufficient = cannot get much information. Ex: cycle ergometer & treadmill in patients with normal function of lower extremities. Ex: arm ergometry in patients w/ dysfunction of lower extremities - need cycle ergometer instead. 2- cpet = should involve non-invasive/minimally invasive measurements of metabolic/cardiovascular/ Ventilatory/pulmonary gas exchange variables from rest to maximum effort. Evaluate factors related to symptoms & metabolic stress. *need to measure at rest & during exercise to get range of metabolic requirements. Comparison of cycle ergometer vs. treadmill for cpet. 1- cycle ergometer: advantages, safety = small risk of falls/injury from bike, ability to vary & quantify work rate-intensity. *can standardize stress- constant: minimal movement artifact on physiological, easy to obtain blood samples via catheter & Blood pressure measurements: disadvantages, familiarity to exercise modality & applicability to daily activities not everyone bike, seat pain/discomfort.
