i reset the resistance so i would have a standard, set it to 2.5 turns not sure where it was before. feels about the same. this time went 8 minutes to reach 180bpm, rather than 6 yesterday and 5 on thursday. those last 2 minutes watching the HR creep up from 175 to 180 really sucked and wanted to puke during the rest. but, hit 0.9 miles more than 2 days ago, or in calories 158 vs 135