Plank: Begin in a push-up position with your elbows under your shoulders. Hold your body in a straight line for as long as you can, engaging your core.
Glute Bridge: Lie on your back with knees bent and feet hip-width apart. Lift your hips toward the ceiling, squeezing your glutes at the top.
Superman: Lie face down with arms extended in front of you. Lift your arms, chest, and legs off the ground simultaneously, engaging your lower back and glutes.
Bird-Dog: Start on your hands and knees. Extend your right arm forward and left leg backward, keeping your back straight. Switch sides.
Seated Leg Lifts: Sit on the floor with legs extended. Lift one leg at a time, engaging your core. To make it more challenging, add ankle weights.
Side Plank: Support your body weight on one forearm and the side of your foot. Keep your body in a straight line and hold. Switch sides.
Russian Twists: Sit with knees bent, feet flat on the floor. Lean back slightly, engage your core, and twist your torso to touch the floor on each side.