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Lay on your back on an exercise bench or floor. Ensure that throughout the exercise, you maintain contracted abdominals, so that your low back does not arch at all. Making sure that you have a good grip on the dumbbell, straighten your elbows and raised the weight straight upwards. Slowly return the weight to above your head, making sure that you don't hit yourself on the way down!Repeat 10 - 12 times, rest, then repeat the exercise sequence if desired.
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