An apparatus and associated methods for facilitating exercise and training includes an elongate board having a top surface, a bottom surface, a length direction and a width direction. The top surface of the board defines a complex curvature including an end convex portion adjacent each opposed end of the board, a center convex portion at a center of the board, and a medial concave portion disposed between the center convex portion and each of the end convex portions. The opposed ends of an elongate strap are threaded upwardly within a slot from the bottom surface to the top surface. At least one pad is provided on the top surface of the board. An opening through the board defines a handhold for gripping and lifting the board. The board may further include a plurality of omnidirectional rollers depending from the bottom surface for movement in any direction.