Banded Side-Lying Leg Lift (Bottom Knee Bent)
Secure a resistance-band loop around your thighs just above your knees, then lie on your side with your knees and hips stacked and your knees bent 90 degrees. Extend your top leg straight and bend your bottom elbow and rest your head on top of it. Slowly lift and lower your top leg under control. Complete all reps on one side, then switch.