These are the same pesky kids that outed VW's TDI.
No, that was West Virginia University... this helmet study is Virginia Tech. VT has been working on helmet impacts in football for a number of years. Nice to see it grow to other sports/activities. Here's the more general page, including hockey, football, and soccer.
https://www.beam.vt.edu/helmet/
No ski helmets yet! Though there are a good amount of skiers at VT - Winterplace in WV is the closest slopes, about an hour away.
(And I'm proud to say I'm an alum! Go Hokies!)