Abstract: An exercising apparatus including an adjustable body frame mounted to be rotated in uninterrupted motion 360.degree. and having a body support including a fixed hand hold and a foot support, the latter being capable of being rotated out of the plane of the body frame to enable the user to rotate head over foot sideways. The body support includes a substantially circular enclosure with a diameter substantially larger than the body of a user to permit movement of the body in any lateral direction. The body support, at any position of the body frame about the its horizontal axis of rotation, selectively reduces by any one of a plurality of different amounts the exertion required of the user to support the component of his body weight lying non-parallel to the longitudinal axis of while the user's body rotates with the frame.