On: Select a muscle and it provides the exercises to workout the selected muscle

[hinkley]

I am having flashbacks to all of the “muscles I didn’t know I had” experiences in tai chi class that turned out to be actual muscles and not figures of speech.

For this audience you might do us a service by looking at muscle diagrams used by PTs rather than gym rats. Particularly for the hips and calves, but the abdominals and spinal muscles are myriad, and addressing back problems involves addressing them.