Number 14 checking in. I'm doing well, finished week 5/16 and HIIT workout 15/48 today. Feeling really good about what this is doing.
Based on the link to a study I put in
this post (which I recommend to all exercisers out there, especially runners), I have decided to reduce my running mileage to ~15 miles per week, maybe a little less, and increase my walking. Also I want my average running pace to be in the 6-7 mph range, peaking at about 8mph maybe for races if I ever do a race. I've also shifted my focus from training for a 10km race to training for a 5km race.
Today I tried something a little different for my HIIT workout. I usually do the Tabata protocol (20s-up/10s-down times 8-16 intervals over 4-8 minutes) on a stationary bike. Today I did the following on a treadmill:
--5 minute warmup, 6-7mph, low-ish to zero incline
--5 x 3 minute intervals:
---114 seconds at 7.9mph (0.25 miles) and incline of 3%
---66 seconds at 6.0mph (0.11 miles) and incline of 0%
--66s walk at 4mph after last up interval to measure heart rate on grips (hit 176 bpm, or basically 100%)
--10 minute jogging cooldown, 6mph and incline of 0%
--15 minute walking cooldown, 4.0-4.5mph with incline varying from 0-10%
I was torched! Feel great though. The running portion was basically a 9 minute mile on average for 30 minutes. I was pleasantly surprised that the treadmill made for a good HIIT workout, but you need to do longer intervals (no Tabata 20s/10s practical here) because of the time it takes to ramp up and down in both speed and incline.
I think this may be a workout I put in every week (assuming I have access to a good treadmill, if not then I'll make-do with whatever's available, last week I ran in place on a snow day).