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. 2015 Dec 22;11:9–16. doi: 10.2147/CIA.S96042

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Pictorial representation of dumbbell spinning.

Notes: (A) Spinning motion in front of the body, dumbbell in a vertical position (in either clockwise or counterclockwise direction); (B) spinning motion in front of the body, dumbbell in a horizontal position (in either forward or backward direction); (C) spinning motion on the side of the body, dumbbell in a vertical position (in either clockwise or counterclockwise direction); (D) spinning motion on the side of the body, dumbbell in a horizontal position (in either clockwise or counterclockwise direction).