Ambient head temperature and football helmet design.
D000328:Adult; D000704:Analysis of Variance; D001265:Athletic Injuries / Q000517:prevention & control*; D001831:Body Temperature; D006259:Craniocerebral Trauma / Q000517:prevention & control*; D004780:Environment, Controlled; D006339:Heart Rate; D006801:Humans; D008297:Male; D005082:Physical Exertion; D011481:Protective Clothing; D012881:Skin Temperature; D013696:Temperature; D013781:Texas; D014937:Work