The key protruding from the fist is not as effective as it is usually presented since the keys don't want to align and do want to rotate. They're usually a once and done technique to help you surprise your attacker and allow you to escape. Still useful for that purpose, but limited to that.
When my wife's hospital gave the training they didn't have anyone put their keys to use. I showed my wife what actually happens when you punch with a keyring in hand and it was quite a revelation. Good once, but not very effective for repeated use.
When my wife's hospital gave the training they didn't have anyone put their keys to use. I showed my wife what actually happens when you punch with a keyring in hand and it was quite a revelation. Good once, but not very effective for repeated use.