Abstract: A strength machine includes a housing having at least two openable or detachable housing shells, a support structure coupled to the housing, a rotatable flywheel mounted on a shaft supported by the support structure, the flywheel being situated between the two housing shells, the flywheel changing its direction of rotation while in operation, a strap- or belt-shaped flexible pulling element attached to the shaft, a hand grip which forms part of or is attached to the flexible pulling element, and an attachment module coupled to the housing, for securing the strength-training machine to an external support.

Abstract: An improved strength machine is at least partly distinguished by the following features: having a housing (20), a housing frame (141), an inner supporting structure (145) and/or an inner frame (145, 150), having a rotatable flywheel weight (13) mounted in the housing (20), on the housing frame (141), on the inner supporting structure (145) or on the inner frame (145, 150), the flywheel weight is fitted on a shaft (12) or is seated on a shaft (12), having a flexible pulling element (3), the flexible pulling element (3) is attached to the shaft (12) or a reel (95) which is mounted on a freewheel bearing (94), which is pretensioned by means of a spring arrangement (96) in the wind-up direction of the pulling element (3).