Non dominant hand (left in majority cases) is more involved but no validated scientific reason for that. May be non dominant extremity is less prepared for coordination or less conditioned for extra-ordinary stress as we fall. Or may be there is difference in strength and muscle activity between two limbs.

Thank you

Kalaventhan, there is no such data to support why the non dominant limb is more fractured, but probably differences in coordination and strength between limbs are the reasons. Kalaventhan Pathinathan

Thank you sir..