I believe this definition fits like a glove what happened in the Whangarei Hospital, New Zealand. A patient, who was already in the hospital, challenged a staff member to an armwrestling match and he ended up with a fractured humerus. Read more about it on nzherald.co.nz ► Arm wrestling ban after patient’s arm broken
Below you can read an answer given by John Brzenk regarding arm breaking. Although John’s answer is from many years ago, I believe it is still valid today.
John Brzenk – armwrestling.com: ” I personally have yet to be pulling against someone that has broken their arm while I was pulling with them. The reason maybe the people I pull against are veteran armwrestlers, that have been in the sport many years, and if their not. I’m normally very cautious to keep them from positioning their arm and bodies in a position where they could hurt themselves. Breaks are not common once you have conditioned your body for armwrestling. I believe the danger exists when you have a stronger then average person beginning in the sport with their weight lifting muscles being much stronger than the bone. I have been around maybe half a dozen breaks in the 20 or so years I have been in the sport. I have been hesitant at times because of this exposure, but then I ask myself what in life doesn’t come with some sort of risk? For me the excitement of competition far outweighs the very small recoverable risk involved. This is from someone that has been on the receiving end. I healed. So will your friend probably stronger than he was before the break. You didn’t break his arm. He did it to himself you just happened to be the one gripped up with him at the time. Hope you can get over it. “