NFL 批准了 Guardian Caps，在比赛中将头部受伤的影响减少了 10-20%。 NFL approves Guardian Caps, reducing head injury impacts by 10-20% during games.

NFL 已批准 Guardian Caps，即软壳头盔套，以减少比赛期间的头部受伤。 The NFL has approved Guardian Caps, soft-shell helmet covers, to reduce head injuries during games. 虽然它们可以将影响严重程度降低10%至20%,但一些球员,包括Tua Tagovailoa,出于安慰考虑,选择不穿。 While they can decrease impact severity by 10% to 20%, some players, including Tua Tagovailoa, opt not to wear them due to comfort concerns. 联盟报告说,自2015年以来,其赛前脑震荡次数最少,下降了24%,部分原因是这些上限。 The league reports its fewest preseason concussions since 2015, with a 24% drop, partly due to these caps. 300多所大学和3 000多所高中课程也使用这些课程。 Over 300 college and 3,000 high school programs also use them.