Abstract: An exoskeleton system comprising a fluidic actuator and a power transmission that includes: a transmission body that defines a transmission chamber configured to hold a fluid, the transmission body having a first and second end, and a piston that translates within the transmission chamber between the first and second ends of the transmission body, with translation of the piston within the transmission chamber changing a volume of the transmission chamber. The exoskeleton system also includes a mechanical power source coupled to the power transmission configured to cause the piston to translate within respective transmission body to change the volume of the transmission cavity; and a first fluid line that couples the power transmission to the fluidic actuator.