Notes
Treadmill hill workout. 6 sets of (90 seconds @ 6.4 mph @ 6% incline, 1 min @ 5.6 mph @ 0% incline, 1 min @ 7% incline @ 6.4 mph, 2 min @ 5.6 mph @ 0% incline); took 30 to 40 seconds recovery between sets. Much stronger for entire set than when I did this workout a month ago.