SALT LAKE CITY -- Canadian freeskier Sarah Burke died Thursday, nine days after crashing at the bottom of the superpipe during a training run in Utah.

Burke, who lived near Whistler in British Columbia, was 29. She was injured Jan. 10 while training at a personal sponsor event at the Park City Mountain resort.

Tests revealed Burke suffered "irreversible damage to her brain due to lack of oxygen and blood after cardiac arrest," according to a statement released by Burke's publicist, Nicole Wool.

A six-time Winter X Games champion, Burke crashed on the same halfpipe where snowboarder Kevin Pearce suffered a traumatic brain injury during a training accident Dec. 31, 2009.

As a result of her fall, Burke's vertebral artery was torn, which led to severe bleeding on the brain, causing her to go into cardiac arrest. CPR was performed on the scene, according to the statement.

Burke's organs and tissues were donated, as she had

requested before the accident, Wool said.

"The family expresses their heartfelt gratitude for the international outpouring of support they have received from all the people Sarah touched," the statement said.

Burke will be remembered for the legacy she left for women in superpipe skiing, a sister sport to the more popular snowboarding brand that has turned Shaun White, Hannah Teter and others into stars.

Aware of the big role the Olympics played in pushing the Whites of the world from the fringes into the mainstream, Burke lobbied to add superpipe skiing to the Winter Games program, noting that no new infrastructure would be needed.

Her arguments won over Olympic officials, and the discipline will debut at the Sochi Games in 2014, where she likely would have been the gold-medal favorite.

"Sarah, in many ways, defines the sport," Canadian Freestyle CEO Peter Judge said before her death. "She's been involved since the very, very early days as one of the first people to bring skis into the pipe. She's also been very dedicated in trying to define her sport but not define herself by winning. For her, it's been about making herself the best she can be rather than comparing herself to other people."

She was, Judge said, as committed to the grass roots of the sport -- holding clinics for youngsters and working with up-and-coming competitors -- as performing at the top levels.

"She was a great, positive person for the whole team, the whole sport," said David Mirota, the Canadian team's high performance director. "She enlightens the room, and she's great."

Canada's Sarah Burke, a pioneer in women's freeskiing, died Thursday from crash-related injuries. Roxy

News of Burke's death spread quickly through the action-sports

world, where the Winter X Games are set to start next week in

Aspen, Colo., without one of their biggest and most-beloved stars.

"She's probably one of the nicest people I've known in my life,

and that's about the only thing I have to say about it," said

American superpipe skier Simon Dumont, a multiple X Games medalist.

Jeremy Forster, the program director for U.S. Freeskiing and

U.S. Snowboarding, said freeskiers would remember Burke "first, as

a friend, and then as a competitor who constantly inspired them to

do greater things."

"She was a leader in her sport, and it's a huge loss for the

freeskiing community," Forster said.

"Shocked and saddened," former freestyle Olympian Jeremy Bloom

said on Twitter. "Sarah was a true champion in everything that she

did."

Her popularity transcended winter sports. Burke met New York Knicks forward Amare Stoudemire at an ESPN The Magazine shoot, and Stoudemire tweeted Thursday: "The world lost a great athlete and innovator today, Prayers go out to her family."

Burke's death is also sure to re-ignite the debate over safety on the halfpipe.

Pearce's injury -- he has since recovered and is back to riding on snow -- was a jarring reminder of the dangers posed to these athletes who often market themselves as devil-may-care thrillseekers but know they make their living in a far more serious profession.

The sport's leaders defend the record, saying mandatory helmets and air bags used on the sides of pipes during practice and better pipe-building technology have made it a safer sport, even though the walls of the pipes have risen significantly in the past decade. They now stand at 22 feet high.

Some of the movement to the halfpipe decades ago came because racing down the mountain, the way they do in snowboardcross and skicross, was considered even more dangerous -- the conditions more unpredictable and the athletes less concerned with each other's safety.

But there are few consistent, hard-and-fast guidelines when it comes to limiting the difficulty of the tricks in the halfpipe, and as the money and fame available in the sport grew, so did the tricks. In 2010, snowboarding pioneer Jake Burton told The Associated Press that much of this was self-policed by athletes who knew where to draw the line.