The hip flexors are a group of muscles that allow you to pull your knees upward and shift your trunk forward with respect to your legs. Hip flexor strain and tearing is common in many running sports as well as skating sports such as hockey and figure skating.
Well stretched hip flexors reduce the chance of injury and can also provide extra strength along a wider range of movement, resulting in improved sports performance.
This is a video by GMB Fitness on how to improve hip mobility. You’ll also learn why you shouldn’t neglect your hip flexors, how to stretch them and how to keep them in excellent shape.