Tuesday's health and safety news from the world of football:
- The Huffington Post covered a study by the National Athletic Trainers' Association that said only 55 percent of secondary schools have access to a full-time trainer and 37 percent have one on staff.
- The Associated Press detailed how the University of Michigan dismissed defensive end Frank Clark after he was charged with assault and domestic violence.
- KSNT-TV in Topeka, Kansas, reported that youth sports leagues in the state are not required to do background checks.
- WOWT-TV in Omaha, Nebraska, looked at schools in its area that comply with helmets in the Virginia Tech STAR ratings.
- KCNC-TV in Denver reported on a study that said hyperbaric chambers are no more than a placebo for treating post-concussion symptoms.
-- Bill Bradley, contributing editor