You don't need leg raises or heavy weights to strengthen your core and hips, just try the dragon flag calisthenics exercise.

For runners, having strong and resilient legs is essential to reach peak performance and prevent injuries. Discover the 10 ...

To do a plank with a leg lift: Get into a plank position, with your weight on your elbows or your hands pressed into the floor. Engage your core, thinking about sucking your belly button into your ...