Abstract: An apparatus for exercising and training of animals with a movable floor formed by an endless belt which may be driven with any desired speed, and whereby to enable the floor to simulate as closely as possible, the elasticity and the like physical properties of the natural surface as f.inst. the turf, the upper portion of the belt is supported by and sliding on a smooth plate, and the endless belt is made of a flexible plastic material with a low coefficient of friction, which on the outward side is covered by a coir mat with long upright pile, and the supporting plate resting on rubber blocks.