The first group wore trial helmets; the second wore regulation skull caps while the third group wore minimal or no head protection.
In the report that has been published on the website The Conversation, lead researcher Caroline French said that they found no evidence that wearing protective helmets prevented concussions. "We've got no evidence really that soft-shell helmets help prevent concussion, although they may prevent against superficial injuries. But we certainly wouldn't be saying at this stage that this is a protective device that is going to prevent everything", she said.
Source: Medindia