By Luke Andrews For Mailonline

Published: 10:57 EDT, 3 March 2020 | Updated: 11:18 EDT, 3 March 2020

A 24-year-old snowboarder has escaped with concussion, two black eyes and a broken nose after knocking herself out during a practice race. 

Shocking footage shows Macarena Valle slam her head into a metal rail when she misses it at the Burton US Open 2020, in Vail, Colorado, before flipping and crashing into the frozen ground.

She was unconscious for several minutes and later posted a photo showing a large dent in her helmet.

Macarena Valle crashed after missing a metal rail at the Burton US Open 2020

Ms Valle was unconscious for several minutes following the accident (pictured)

The video begins with Ms Valle jumping towards the metal rail during the women's slopestyle practice run on February 27.

But she misses. The board swings to the right and her legs go up over her head as she slams against the cold metal.

She crashes against the hard snow and slides several feet down the slope.

Ms Valle, from Argentina, has posted several updates since the crash to let fans know she survived and to show them her injuries.

The snowboarder has shared the video of her crash. 'This is the gnarliest thing I ever saw in my life and it's myself,' she captioned the clip. 'Glad I'm still walking out alive of this one.'

Ms Valle then slid down the slope for several feet. A picture posted later showed a large dent in her helmet (right)

Ms Valle is pictured above sliding down the frozen slope as snow rises into the air

She has also posted an image of her dented helmet with the caption: 'Just a reminder to wear your helmet. This one saved Maca Valle's life! Glad you're ok Maca.'

Posting a picture of her cut nose and black eyes yesterday, she wrote: 'It's me swollen. Thanks Burton Snowboard US Open for the best times and to everyone for making it a blast!' 

Ms Valle finished first in the Cerro Catedral Big Air run, Argentina, in 2017, and eighth in the Vars Big Air Run, France, in 2018. 

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