When typing, the muscles on the outside of the forearm (anterior group) get a lot more use than the ones on the inside (posterior group), so they get a lot stro

When typing, the muscles on the outside of the forearm (anterior group) get a lot more use than the ones on the inside (posterior group), so they get a lot stronger. This lack of balance is (likely) a contributing factor to CTS, in the same way that a weak neck and thoracic stabilizers cause UCS (upper-cross syndrome) Climbing is ideal here, because you spend a lot of time grabbing and holding on from odd angles, giving your entire forearm a solid workout.