Abstract: A modular construction system is provided for building impulse machines having a computer weight module that is responsive to a floor scale assembly. The weight module is supported on a pedestal which is attached to a base plate of the floor scale assembly. The pedestal is hollow to accommodate an electrical cable connecting the impulse module to load sensing means located within a pressure pad of the floor scale assembly. Additional impulse modules having different themes can be attached atop the pedestal along with the weight module by use of an adapter plate. Thereafter, the type of impulse modules utilized in the impulse machine can be changed by detaching selected impulse modules from the adapter plate and substituting new impulse modules therefor. Moreover, a different number of impulse modules can be supported on the pedestal by interchanging the adapter plate with another, differently sized adapter plate designed to accommodate a larger or smaller number of modules thereon.