Abstract: The invention relates to a treadmill comprising a frame structure as well as roller parts supported against the frame structure, a belt part, and means for rotating at least one of the roller parts, whereby the belt part is arranged to rotate as an endless loop around the roller parts. The frame structure is made of a self-supporting structure functioning as a tread base and formed as an integrated glued structure.

Abstract: A treadmill that comprises a frame, a belt section arranged on the frame and comprising a belt arranged in an endless loop around two rolls at a distance from each other, first means for turning the belt around a front roll and a back roll at a desired speed, and second means for adjusting the tilt of the belt section with respect to the horizontal. The second means comprise a rotary actuator arranged in the frame and having a support arm arranged to rest against the frame, and lifting arms, the angle of which is arranged to change with respect to the frame when the rotary actuator is working.