Exercising and therapy device to rehabilitate muscles, and to exercise coordination and balance, and to treat a backbone and joints thereof. The exercising equipment and therapy device includes a curved plane element (1) to perform movements and rehabilitating measures, exercising measures and/or treatment measures on and by the plane element (1). The exercising equipment and therapy device can be set to an immobile position. In this position the plane element (1) leans against the base (4) on its ends (2, 3) or on its end zones (21, 31). The immobile position has been meant into the rehabilitation use, into the exercising use and/or for the treatment use of the muscles and of the backbone and the joints thereof, the exercising equipment and therapy device can also be set to a swinging moveable position. In this position the plane element (1) leans against the base (4) on its curved part (11), which is between the ends (2, 3) or between the end zones (21,31) thereof. The swinging moveable position is meant for the exercising of the coordination and the balance. It is essential to the invention, that to secure the staying of the exercising equipment and therapy device in place in the immobile position a projection part or projection piece (5) is fixed to the end (2, 3) or to the end zone (21, 31) of the curved plane element (1), which projection part is in the inner surface of the plane element (1), advantageously in the vicinity of the end edge or of the end zone, in other words in the vicinity of the brim edge, and length of which projection part or projection piece is longer than the width of the curved plane element (1), in which case the projection part or the projection piece extends outside both side edges of the curved plane element.
