The present invention comprises an apparatus and method for gravity-balanced apparatuses for training humans for space exploration and other applications. The embodiment of the simulation apparatus is less expensive to build and safe to operate and adaptable to numerous applications, including but not limited to theme parks, museums, training facilities, educational/research labs, and others, for people to experience walking and other perambulations in lower or zero gravity environments. The present invention is statically-balanced and comprises a spring apparatus that is easily adjusted. An embodiment of the present invention provides an apparatus and method for simulating walking in a zero-gravity or reduced-gravity environment.