Abstract
An exoskeleton is disclosed having a first exoskeleton element, a second exoskeleton element and a pneumatic actuator which is mechanically connected to the first exoskeleton element and the second exoskeleton element. The exoskeleton further comprises a control unit which is arranged to switch, when the first pneumatic actuator is controlled, between a first active support mode and a first passive support mode in which the first pneumatic actuator is not vented to the environment.