The shock prompted full cardiac and pulmonary arrest, the spokeswoman said.
The smartphone is dropped but the camera continues to film as it comes to rest below the seat belt.
It reportedly took a member of emergency services to stop the livestream.
And she's also known for getting candid about her personal life.
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Cyclists participating in the 10th Annual World Wide Naked Bike Ride make their way down W Division Street in Chicago, Saturday, June 8, 2013.
But then in a split second, Barabasova lets out a yelp.