And old and excellent exercise to work our butt and hips with no equipment.
Lie on your side on a mat/floor with your legs straight and your feet stacked in a neutral position. Your lower arm can be bent and placed under your head for support. Your upper arm rests upon your upper hip or in front of you for stability. Your hips and shoulders should be stacked up and aligned vertically to the floor.
Exhale and raise the upper leg. Keep the knee straight and the foot in a neutral position. Do not allow the hips to roll forward or back. Both knees should be “looking” straight ahead. Continue raising the leg until the hips begin to tilt, the waist collapses into the floor or until your feel tension develop in your low back or oblique muscles.
Gently inhale and gently return the leg to your starting position. Repeat.