Sis boom ouch! Cheerleaders more prone to injury

Oct. 8: Last year, 16,000 cheerleaders were injured seriously in accidents involving dramatic stunts and tumbles. KPLC-TV's Britney Glaser reports. (NBC News Channel)

MSNBC | October 8, 2009

Tags:. .prone. .glaser. .sis. .ouch. .tumbles