Great app

I got to this app. From 0 to 10k I use it as a warm up for running.
I am over half way to 100 squats and am surprised that I can do as many as I am. There were a couple of days it was work, but as the app. slowly builds you up you find you can do this with out walking around sore for 2 days

Another Lonely Driver about Butt workout: squat challenge, v6.30