Advice for once a year ice skaters from RoSPA:
"If you fall, he recommends tucking your arms in and rolling - rather than putting you hand out to stop the fall, which could damage the hand or be hit by another skater's blades."http://www.bbc.co.uk/news/health-16318663
Great advice for protecting the wrists...but not so good for the head, shoulders, arms, spine, face, life in general etc.
I'd like to invite the chairman of the society, Prof Graham Smith to Viccy Park to demonstrate this technique on concrete while I video it for posterity and much youtube hilarity.