Plank, Side Plank, & Scissors
Plank
Get into a push-up position on the floor. Bend your elbows 90° and rest your weight on your forearms. Your elbows should be directly beneath your shoulders, and your body should form a straight line from your head to your feet. Hold the position for as long as you can. Your goal should be to hold it for two minutes.
Side Plank
Begin on your side with your feet together and one forearm directly below your shoulder. Contract your core and raise your hips until your body is in a straight line from head to feet. Hold the position without letting your hips drop for the allotted time for each set, then repeat on the other side.
Scissors
Start by lying down with your back pressed against the floor or on an exercise mat. Your arms should be fully extended to the sides with your palms facing down. With a slight bend at the knees, lift your legs up so that your heels are about 6 inches off the ground. This is the starting position. Next lift your left leg up to about a 45 degree angle while your right leg is lowered until the heel is about 2-3 inches from the ground. Switch movements by raising your right leg up and lowering your left leg. Remember to breathe while performing this exercise. Repeat for the recommended amount of repetitions.