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Deltoid
Keeping your arm straight and down by your side, rotate your NSD Powerball in a clockwise direction. You should start to feel a burn in your deltoid muscles as your NSD Powerball exercises them.
Back to exercise videos.
Keeping your arm straight and down by your side, rotate your NSD Powerball in a clockwise direction. You should start to feel a burn in your deltoid muscles as your NSD Powerball exercises them.
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