I think having various stabilizer muscles be stronger induces you to hold your body in a healthier way. (I think this both because I've heard people say this, a

I think having various stabilizer muscles be stronger induces you to hold your body in a healthier way. (I think this both because I've heard people say this, and I've felt it myself, although from rock climbing rather than running). It seems like the various basic work of holding your body up and out of tension is essentially free for those muscles if they are strengthened and flexible _at all_, but a sedentary lifestyle can atrophy them to beyond that.