Abstract: A pedal device for rotatable attachment to a crank arm, wherein the pedal has a pedal body with engagement sides which each have a bracket adapted for possible engagement with a functional part designed for cooperation with a user's foot. One of the engagement sides of the pedal body has a first bracket adapted to a fastening piece for the functional part for use during the performance of conventional training exercise. The opposite engagement side of the pedal body has a second bracket adapted to said fastening piece for the functional part for limited tiltability about an axis that extends transverse to the longitudinal axis of the pedal shaft. The functional part may be a shoe or a foot engagement part, e.g., a foot plate.

Abstract: An exercise apparatus for strengthening a person's muscles when the person is in contact with an apparatus part for support of the person's buttocks and/or back and/or stomach/chest. One apparatus part, for example, a support board for the person's back and/or buttocks is made having positional instability in connection with a support bearing.

Abstract: A physical exercise apparatus equipped with upwardly and downwardly movable bars on which footrest platforms are mounted, and having grip poles that are fixed or movable as part of an exercise, wherein the platforms are tiltable to both sides transverse to an axis that extends along the length of the bars. The platforms each have a tilting mechanism that is steplessly or stepwise adjustable from a locked position to a tilting function state, and the platforms have a means for engagement with a guide track and/or articulated arms that are fastened to the fitness apparatus frame, whereby the platform is cause to be slidably guidable along the bars, and that the movement is a function of the vertical movement of the bars.