The inner-thigh lift is a dynamic exercise that strengthens the core and hip area.
Lie on one side, supporting your upper body on your elbow and placing your opposite hand behind your head.
Brace your core and keep a straight spine. Lift both legs slightly off of the floor. Then bend your top knee and bring it to your chest as your raise your lower leg and bring it higher off of the ground. Pause, then straighten both legs until they are just above the ground. Return to start.
Avoid using momentum to move through the exercise. Focus on contracting your inner thighs with each rep.
Keep your head in line with your spine at all times.