20 julio 2015
Concussions in football are caused by the sudden rotation of the skull, mounting evidence suggests. Researchers now have evidence that suggests current football helmet tests don’t account for these movements.img src=»http://feeds.feedburner.com/~r/sciencedaily/~4/_ftvMEADiU8″ height=»1″ width=»1″ alt=»»/
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_ftvMEADiU8/150720154216.htm











