Reverse Crunches
Lie on your back with knees bent, feet a few inches off the floor. Slowly contract the abdominals, focusing on rotating the pelvis up and bringing your knees towards your rib cage. Concentrate on letting your abs do the work. Hold at the top then slowly lower your knees to the starting position. Repeat.
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Oblique Crossover Crunches
Lie on your back with knees bent, hands behind your head. Keeping lower back pressed into the floor, lift your shoulder blades off the floor and then curl your upper body diagonally across your body towards your right knee. Contract your abs and obliques as hard as you can at the top of the movement. Lower back down and repeat on the same side before switching sides.
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Plank
Begin by placing elbows on the floor and resting body on the knees. Pull the abs tight to hold your body in a straight line from head to knees without sagging in the middle, eyes looking naturally forward. Hold this position for as long as you can, relax and repeat 3 or more times.
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Dead Bug
Begin by lying on back, knees up and bent at 90 degrees. Take the arms straight up overhead and hold this position for a moment, making sure abs are in tight and your back isn't arching off the floor (if it is, lower the feet to the ground for this exercise). Slowly lower the right arm and left leg towards the floor while keeping the lower back on the floor. Bring them back up and lower the left arm and right leg to the floor. Continue lowering opposite arm and leg for a total of 10 reps.
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Back Extensions
Lie face down with hands either behind the back or lightly cradling the head. Lift upper body off the ground a few inches, keeping head and neck in alignment. For a challenge, then lift feet off the ground keeping legs straight (knees don't have to be together), hold for 2-4 counts and lower.
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Superhumans
Begin on hands and knees, hand directly under shoulders, knees under hips and back straight, abs tight. Slowly raise right arm and left leg up until level with the body, holding your balance and keeping torso tight. Lower back down and repeat with the left arm and right leg. Take your time--this exercise will challenge your balance! |

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Horizontal Wood Chops
Wrap tube or band around a sturdy object and stand to the left, holding handles in both hands. Keeping the arms straight, swing the arms across the body and rotate towards the left, contracting the abs. Return to start and repeat for 10-12 reps before switching sides.
 
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Ball Pass
Begin by lying on your back with the legs straight up (bend them if needed) and holding the ball straight up over the body. (A) Put the ball between the feet, squeezing them to keep the ball in place, and lower both the arms and legs down towards the floor. (B) Bring them back up and take the ball in your hands. (C) Lower the arms and legs down towards the floor again and continue, exchanging the ball between the hands and feet for 8-12 reps.
  
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Ball Plank with Leg Lift
Get into plank position with the feet/shins resting on the ball, hands under shoulders and abs contracted. Keeping the core tight, lift the right leg off the ball a few inches and lower. Lift the left leg off the ball and lower. Continue alternating legs for 8-10 reps on each side.

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Reverse Hyper-Extension on the Ball
Lie face down on the ball and roll forward until you're resting on your forearms, legs straight and toes resting on the floor. Keeping the legs straight, lift them up until the body is in a straight line, concentrating on the lower back. Lower the legs slightly and repeat for 10-12 reps.
 
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Roll Ups with the Ball
Begin seated on the floor, legs and spine straight and the ball extended out in front of you. Pull the abs in and engage the pelvis as you roll down onto the mat, feeling each vertebrae make contact, taking the ball over the head. Roll back up to start taking the ball up and reaching forward as you come back to sitting. Repeat for 10-12 reps and bend the knees to modify this move if your back is arching off the floor.
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Plank Press-Ups on the Ball
On your knees, place you forearms on the ball and roll forward a bit until your back is flat. Straighten the knees and bring the body into a plank position. Hold for 1-2 seconds, lower the knees and repeat for 10-12 reps.
 
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Jacknife
Begin lying on the floor with the legs straight up (knees slightly bent if needed) and hold the ball behind the head. Lower the legs a few inches and then bring the ball up as you bring the legs in, touching the ball to the toes in a full crunch. Lower and repeat for 10-12 reps.
 
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