Do you feel like your running form changes when you exercise indoors? That’s because your feet push off the surface when exercising outside and when on a treadmill you tend to pick up your feet and place them back down on the moving surface. Try to focus on pushing off the belt. You can also tense up because it alters your proprioception, or awareness of your body in space. Plus you have weather variables like wind to run against outdoors. To compensate for these factors, set the treadmill to 1.5-2.5 incline to promote good form of leaning forward at the ankles and landing more on your forefoot. Happy running!