Most runners have a love-hate relationship with the treadmill. On the one hand, it's boring and germ-infested. On the other, it's often a necessary evil to get through long winters or rainy mornings.
With any luck, soon you'll be able to celebrate outdoors, in all of this early-June glory. Working out outside has noted benefits over hitting the gym, including improved energy and a greater likelihood to keep exercising.
But in case you're stuck inside—and for the indoor runs in your future—we want to make sure you're doing it right. We asked three fitness experts—personal trainer Matthew Basso, president of Iron Lotus Personal Training; Jason Karp, Ph.D., an exercise physiologist and the author of Running for Women and Running a Marathon For Dummies, and Jay Cardiello, celebrity trainer, author, and creator of JCore—to share their biggest treadmill pet peeves. Below are some of the most common mistakes they see gymgoers make, and what we should be doing instead.