Re: Bruised forearms
I think the instructors I've had don't want you to wear forearm guards when practicing the 360 defense because they want students to feel what it would it's like to defend against an actual knife attack in a real life situation. Wearing shin guards, mouth guards, and cups are necessary to prevent substantial injuries, whereas the likelihood of seriously hurting your forearms is probably fairly low. That said, we would only do 360 defenses every few weeks in level 1 and I only got bruised up bad a couple times. If it was happening every week, I might want to invest in some arm protection also.