[1] She has represented Colombia at the 2012 Summer Paralympics in London and has won silver in the 800m at two consecutive IPC Athletics World Championships.

[1][2] The third of eight children,[2] she grew up on the outskirts of the city of Santa Marta Antioquia, and was educated at Marco Fidel Suarez School.

In her free time she enjoyed swimming, but a chance meeting with running coach Juan "Chope" Guillermo Rodríguez led her to take up athletics.

She ran a slower time in the final, but it was still enough for her to finish second behind the Czech Republic's Miroslava Sedlackova to collect the silver medal.

The next year Arango Buitrago represented Colombia again, this time at the 2013 IPC Athletics World Championships held in Lyon, France.

In the final Arango Buitrago ran 2:24.85 an area record to finish second behind Italy's Annalisa Minetti to take her second World Championship silver medal.