Pump you up

Yep, still working with my Muscle Booster app and still loving it. After a few days, I noticed the big red muscles in the diagram. What can I say? I'm a guy, and we tend to do things and read later.

What I like about this workout is that you can tailor the exercise or stretch to your own needs or level. This particular exercise puts a strain on my healing back, so I did my old fart version. While working with this app, I started to wonder how far to take the abuse. Hint: the bright red highlighted muscle group is a giveaway. So instead of doing air exercises, I stretched until I felt a slight burn in the highlighted muscle group. Da.