Stand with feet shoulder-width apart. Lower your hips back and down as if sitting in a chair, keeping your knees behind your toes. Push through your heels to stand back up.

Start in a high plank position with hands under shoulders. Lower your body toward the floor, keeping your body straight. Push back up to the starting position.

Step forward with one foot and lower your back knee toward the ground, keeping the front knee behind the toes. Push back up to standing and alternate legs.

Start in a push-up position or on your forearms. Keep your body in a straight line from head to heels, engaging your core, and hold.

Lie on your back with knees bent and feet flat. Lift your shoulders off the floor toward your knees, squeezing your core, and then lower back down.

Lie on your back with legs extended. Lift both legs together toward the ceiling while keeping your lower back pressed into the floor, then lower them back down slowly.

Start in a push-up position or on your forearms. Keep your body in a straight line from head to heels, engaging your core, and hold.

Lie on a bench or the floor. Hold dumbbells at chest level and press them up until arms are extended. Lower back down to the starting position.

Stand with a slight bend in your knees and hinge forward at the hips. Hold dumbbells with palms facing in and pull them toward your chest, keeping elbows close to your sides. Lower back down.

Stand with arms extended and dumbbells in your hands. Curl the weights up by bending your elbows, keeping them close to your body. Lower the weights back down slowly.