The rule change is the latest in a series of measures taken by the league to address concerns about lasting effects of head injuries. (sciencemag.org)
In each test, measures taken from the head, neck, chest, and one leg indicate low risk of injuries to these body regions in a crash of this severity. (iihs.org)
The design attempted to balance the pairing and ordering of measures taken by respondents so that all pairs and orders would be represented. (myplan.com)