Abstract: A dynamic board is provided that encourages movement and muscle activation in sedentary environments. The board has a flexible planar surface that allows for resistance flexion about multiple spatial planes. The support board is formed of a plurality of linear ribs stacked together in parallel having a lateral central fulcrum hinge running through each linear rib for providing a rotation point for movement along a lateral center axis. A compression element for urging together the plurality of linear ribs and for providing an urging force on each said rib to return to a stasis position about the fulcrum hinge when deflected. Each rib can be formed of a structurally monolithic piece and can have an overall lateral profile similar to an arc segment.