Abstract: Display apparatus including an annular frame defining a central region, at least one set of indications arranged on the frame around the central region, at least one projection arranged proximate, in correspondence with or in alignment with one set of indications, and a rotation mechanism coupled to a connection point on each projection to rotate the projection such that the connection point is rotated in a loop around the central region. The rotation mechanism determines a quantity to be displayed and control rotation of the projection(s) based thereon. The projections can extend inward from rotatable rings (and not outward from a common, central point or area) so that the central region defined by the frame may be open. When multiple rings are used in connection with the same set of indications, the projections on the rings are different in form, size, color and/or shape.

Abstract: An exercise device is provided for improving an user's speed and jumping ability. The device includes a base proximate the user's feet and having at least opposed side members which serve as anchors. A belt is provided which is secured about the user's waist and connected to one end of each of a plurality of elastic bands. Opposite ends of each band are connected to the side members upon the base to remain anchored to the floor. The elastic bands provide resistance against upward movement and exert a downward force in addition to the natural force of gravity. The elastic bands may be interchanged for bands of different sizes to adjust the amount of downward force exerted upon the user. During operation, the user stands within the base and secures the belt around his/her waist. Next, the user runs in place, hops, jumps, performs sit ups and the like to effect neuromuscular training.