A rehabilitation and/or training device (10) for equines is described, particularly for horses, comprising at least one elastic compression cushion (14) intended to be applied onto a compression region of the equine (12) including at least one part of the croup (24) to exert a compression action on such a region during a pace of the equine. The cushion includes a tail recess (18) that is arranged facing a joining portion (23) of the tail (22) of the equine. The device (10) also comprises a plurality of elastic connection elements (16) each having an end portion connected to the elastic cushion (14) and an opposite end portion connected to support elements that can be coupled with the equine at a certain distance from the cushion. The cushion (14) and the elastic connection elements (16) overall form an elastic system suitable for taking up a configuration in which the connection elements (16) and the cushion (14) are elastically deformed to exert an elastic reaction force suitable for causing at least a flexing of the lumbosacral joint of the equine.
