I'm new to the hive so hello everyone. I saw a video by a YouTube channel called Movement by David where he was talking about ways to stretch and one was doing a squat where your feet are flat on the ground. I usually squat with my heels upward. A couple days ago I practiced a deep squat by having my back against the wall for stability, and it felt rather comfortable to have flat feet during a squat! But man the day after doing that my shins hurt quite a bit, and today they're aching like crazy (but its nothing different than when I work out a muscle I haven't in a while, it's not an alarming pain). What muscle did I work out by doing this? What are the benefits of a deep squat?