Notes
1 min @ 4%, 5% & 6% incline (6.3-6.4); 3 min @ 0% (5.6); 1min @ 5%, 6% & 7% incline (6.3-6.1); same 3 min recovery; 1 min @ 6%, 7%, & 8% incline (6.1-5.9); same 3 min recovery; 1 min @ 8%, 7% & 6% incline (5.9-6.1); same 3 min recovery; 1 min @ 7%, 6%, & 5% incline (5.9-6.1); same 3 min recovery; 1 min @ 6%, 5% &4% incline, then same 3 min recovery. Hard workout but able to complete it. Did have to take four 30-40 sec rests after some of the "climbs", but legs felt good at end of workout.