Some field guides will also provide tables with the math already completed for these and additional hula hoop sizes.

to represent human forms at one-tenth the size. These shapes were driven to gyrate by a motor, replicating the motions we take when hula hooping. Hoops approximately 6 inches in diameter were ...

They mimicked human bodies by using 3D-printed bodies that were one-tenth the size. “These shapes were driven to gyrate by a motor, replicating the motions we take when hula hooping. Hoops ...