Abstract: A hand support controlling device includes two hand support rod members and two controlling units. Each of the rod members has upper and lower rod sections, which are disposed rotatably on a base. Each controlling unit is rotatable between a first position, wherein the respective upper rod section is connected fixedly to the respective lower rod section so that the respective upper rod section can swing back and forth about a pivot axis, and a second position, wherein the respective upper rod section is fixed relative to the base and wherein the respective lower rod section is rotatable about the pivot axis.

Abstract: A dual-function treading exerciser includes a treading platform, an upright frame, and a movable handle assembly. The frame includes an upright frame body and two fixed handles connected fixedly to an upper portion of the frame body. The movable handle assembly includes two pulling devices and a rotary shaft journalled on the frame. Each pulling device includes a housing with a receiving chamber, a pulley disposed rotatably in the chamber, a pull cord wound on the pulley, a handgrip fastened to an end of the cord and movable rearwardly to unwind the cord from the pulley, and a biasing unit for biasing the cord to wind around the pulley when the cord is pulled rearwardly and is subsequently released.