Lie on your back with knees bent and feet flat on the floor. Place hands behind your head, lift your shoulders off the ground, and engage your core as you crunch upward. Lower back down and repeat.
Start in a plank position with your arms straight beneath your shoulders. Keep your body in a straight line from head to heels, engaging your core. Hold the position for as long as you can while maintaining good form.
Lie on your back with legs straight. Lift your legs toward the ceiling, keeping them straight, and then slowly lower them back down without letting them touch the floor. Engage your core throughout the movement.
Begin in a plank position and bring one knee toward your chest, then switch legs in a running motion. Keep your core tight and maintain a steady pace.
Lie on your back with hands behind your head. Lift your shoulders off the ground and bring one knee toward your chest while rotating your torso to touch the opposite elbow. Repeat on the other side in a cycling motion.
Sit on the floor with knees bent and feet flat. Lean back slightly and lift your feet off the ground. Hold your hands together and twist your torso to one side, then the other, engaging your obliques.
Start in a standing position, then squat down, kick your feet back into a plank, perform a push-up, jump your feet back toward your hands, and then explode into a jump. Burpees engage multiple muscle groups, including the core.
Lie on your back with hands by your sides or under your hips. Lift your legs toward the ceiling, then curl your hips off the floor, bringing your knees toward your chest. Lower back down with control.