I had a pacemaker put in a while back. I am getting back into road cycling after several months of rest. It's not going well. I am having trouble doing distances and long stretches with hills. So I went into my local pacemaker clinic for advice. The technician said my days of cycling distances and doing hills are pretty well over because the upper body doesn't move much when you cycle. The technician recommended I switch from cycling to walking or jogging where the upper body movement will cause the pacemaker to up the beats. This is tough to swallow for a serious cyclist. Can anyone advise ?