When you sit behind a desk for most of the day, a few minutes of exercise can make a huge difference.

That was the message Thursday at Advance Auto Parts in Roanoke, as employees of the company's Store Support Center took part in a mini-marathon.

They weren't running, and the course was inside the building, but employees say the benefits of exercise are obvious.

"We need that time out, so we can come back and be innovative and productive," said HR Support Center Supervisor Carla Poindexter. "And when you're feeling good in your body, you're going to do good in your work."

And there are other ways Advance says it has tried to promote a healthy workplace, including treadmill workstations, stand-up desks and healthy food in the company's cafe.