Just completed my W2R3 on the treadmill, but oh man was it a struggle! I started and it felt like there was more of a strain on my legs...even the brisk walks became a struggle. Nothing felt right. I was coming up to the last two 90 second runs and I thought I was going to have stop...
Then I look at my treadmill...I’d somehow put it on a bit of an incline!! Duh. I put it back to completely flat and it was so much easier. Oh well...looking forward to W3.