I am almost 57 years old and have never run before, I always worried it would be too hard on aging knees! Got a new fitbit however and found this app and thought it would be a challenge to try!
I really struggled on week 1 and ended up repeating it, it was still grueling! My son was telling me to go slower (before I found this forum), but I didn't think it was possible, it felt like I could walk almost as fast!
Started week two today and really focused to slowing it down and I found it so much easier than week 1. Definitely knee and calf pain, but I found some great stretches on youtube and complete about 10 min of stretches after the run.