Что значит put through a workout?

В контексте:

What Rainbow Dash didn't account for was how dry she would feel. The cold winds high above the mountain were blisteringly harsh. She felt her lips becoming chapped within hours. What was more, the sunlight reflecting off the snow-capped mountains was quite literally baking her skin. She found herself gliding in southeast and northeast angles, alternating the sides of her body exposed to the solar glow. Most of the trip was performed squinting, and she definitely put the shades of her lenses through a workout.

Ultimately, the entire trek was a test of endurance. Rainbow Dash found herself having to rest on multiple occasions. This wasn't a difficult thing to do; many of the craggy rock formations provided shade for her to sit down and rest her eyes and body from the reflected sunlight.