Cheerleading is a deceptively dangerous sport. My youngest daughter was a cheerleader. We have had many visits to the emergency room.
Bingo. Many serious injuries every year involving dismounts from pyramids.
People see the cheerleaders on TV during NFL or NBA games and think 'they're just dancers'. And that's true, at that level that's all they do.
But at the high school and college levels they are generally crazy athletic gymnasts too. Lots of skill and athleticism needed at that level, and plenty of opportunity for injuries as there are for any athlete. At the high school level I have as much respect for the cheerleaders as I do for the teams.
Of course at the NFL level it's different; I much prefer the cheerleaders.