So often I'm asked "which muscle do I need to strengthen?" or "which muscle does XYZ thing?" And the truth is that we--our bodies and minds--are much more awesome and complex than those questions give space for. Muscles are a system within many system. The muscle system itself always works synergistically, and the systems that interact with and support that muscle system, well the same goes there.
Like scars, for example. The skin is our biggest organ and damn well innervated. It tells you when and where a tiny hair lands on you, which gives you an idea of how intelligent and well connected skin is. So when scar tissue forms, it changes the way innervation runs through that particular swath of skin, and those sites can still be neurologically active--changing the way you move and feel--long after the skin has healed over. (Other systems you might think of are fascia, lymph, nerves, joints, metabolism, respiration, vision, vestibular...and of course the ever changing rule of quantum physics--the latter of which neither of us understand.)
But, to simplify...the next time you pick up your Very Full Tea Kettle, your bags, your groceries, your trash, take a moment to feel your calves and feet. Can you feel them? Can you play with the way you engage them and work with them to take those next steps? Can you feel your butt and spine and and and...what else?
Now go enjoy that cuppa!