Treadmill intervals 41:00 4.0 mi (10:15 / mi) +64m9:46 / mi ahr:141 max:165 shoes: NB878 - #12
Intervals on the treadmill because it's still too darn cold to do this stuff outside. 2-3-2-3-2 minutes @8:00/mi, 1% grade with 90 sec recovery. HR bogus during warm-up.