A fitness guru proved she's the queen of the gym in footage of her running on seven different treadmills at one time.
Maggi Thorne, 36, is a three-time American Ninja Warrior competitor. In August she became the first woman to ever complete the Crank It Up obstacle on the course which involves intense upper body strength to move a bar across an uneven pole.
To be that good, she has to train very hard.
A video shows her at the gym in Lincoln, Nebraska, running across seven different treadmills to work...