Humans, you might think, are pretty symmetrical, if you were to divide us in half along the line of our noses, breastbones, and on down. We’ve got an eye and an ear on each side, an arm and leg apiece, for the most part. Functionally, though, not so much. Most of us have a preferred hand to do things with, a stronger leg to stand on, and even a preferred eye. These preferences shape our shapes, so to speak. What’s strong gets stronger and what we use less dwindles. That’s normal, and yet it causes problems for us.
What can we do about it?
We can train asymmetrically. That is, we can work one arm or leg at a time. Think about, say, single arm clean and press, or doing curls one arm at a time.
I love asymmetrical work for a variety of reasons. One is that it demands more stabilization, so it automatically strengthens our core musculature and improves our balance. I mean, right there is enough reason to do it!
Another reason to work that way is that our strong side can’t help the other side. We see exactly where we are on each side of the body. (This is why I prefer to have clients do things like bench press with dumbbells rather than barbells. It’s not strictly asymmetric training, but each arm has its own burden to bear by itself.) Getting the less strong side to do its fair share of the work helps us avoid overuse injuries on the other side.
Yet one more reason to do it: it challenges our brains to flip from side to side. We get smart as we get strong.
Go play.

