Boho
Thinks s/he gets paid by the post
- Joined
- Feb 7, 2017
- Messages
- 1,844
Physiologic Responses of Cardiac Patients to Supine, Recumbent, and Upright Cycle Ergometry
Body position can have a differential effect on cardiovascular function in patients with coronary artery disease..These differences have been observed in most studies that compared supine to upright exercise. These differences include higher left ventricular end-diastolic pressures...and volumes...higher stroke volume (SV) during rest and submaximal exercise...lower maximal oxygen uptake...lower arteriovenous oxygen difference...and lower heart rate (HR) at rest and during submaximal exercise...in the supine compared with the upright positions. Also, there is more frequent angina at the lower workloads...caution is warranted when prescribing an exercise intensity for a patient desiring to undertake recumbent ergometry...the supine position is a potentiator of myocardial ischemia...