Banded Glute Bridge and Butterfly
Secure a resistance-band loop around your thighs just above your knees and lie faceup with your knees bent, feet flat on the floor, arms extended alongside your body. Drive through your heels and press your hips up until your hips align with your head and knees. Hold here, then open your legs to the sides, return to center, then drop almost to the floor before going right into the next rep.