+1 to Drut for his reply.
Think babies, toddlers and drunks....what do they all have in common? When they fall they are limp...best yet, they rarely get hurt.
Conversely, adults and the elderly often try to break their fall when falling...causing much tissue and even bone damage.
Now if you've got your gear on, acting limp while falling, sliding, etc. should get you better results than trying to stop and break your fall.