My dogs get MINIMUM 1hrs worth of walking a day, I have not missed that in 9 years no matter what the weather or how i'm feeling. When i'm away, my dogsitter does as I ask. I know she does ok, because they're not freaking out with excess energy when I come back home. Your wife is doing the right thing. I'll bet she finds delivery much easier because she'll be in better shape. Hope all goes great!