METABOLIC AND HEMODYNAMIC VARIABLES RELATED TO PACING.

The article presents several abstracts concerning metabolic and hemodynamic variables related to pacing. One of the abstracts provides that implanted multi-programmable pacemakers were tested according to three treadmill protocols. The first was an incremental symptom limited treadmill test at heart rate 70, the second consisted of 12 minutes of walking at 40% of max exercise level at three pacemaker rates: 70, 100, 115. The third protocol had four exercise tests at submaximal exercise level, 6 minutes on treadmill at rate settings of 70,100,115,130.