CLEVELAND --While newer high tech football helmets protect players from skull fractures, they don't do much more for preventing concussions as an old-time leather helmet.

Cleveland Clinic researchers tested both helmets using simulated collisions at speeds comparable to speeds at collegiate or high school levels.

The results showed the leather helmets offered similar or better protection against head injuries compared to the modern helmet.

Researchers don't believe players should go back to using them, but newer helmet design should use the research as insight.

Forty percent of football players experience a concussion each year and it's the leading cause of brain damage in sports.