Sprint interval training, or SIT, is super trendy right now. It’s a great way to improve your running speed and to get in a ...

Stand facing away from a box, bench, or chair. Place top of right foot onto the box with left foot about three feet in front, hands on hips. Bend left leg to lower into a lunge until right knee ...

Another difference between jogging, running, and sprinting is foot strike. When walking, jogging, and running, many runners ...