NOVELTY - Invention refers to medical equipment, and also to exercise and playing training machines. The device accommodates a personal computer to LPT-port of a system unit of which there are connected an optical mouse, a pulse detector with a photodetector, through a driver amplifier, and a motion sensor of an inertial wheel of an exercise bicycle also supplied with foot supports fixed on its front bearing, and a handlebars with a position regulator comprising a retainer bushing and attachment screws. On the handlebars, there is a button attached that is connected with a left mouse button mounted on a lower fixed plate of a "power mouse" placed in a cup between the handlebars frame and handle, and comprising a "playing rod" one end of which is connected to the handlebars, and the second end of which comprises a ball optically connected with the optical mouse and enclosed by adjustable friction elements represented by upper and lower rubbing elements. A retention assembly consists of an upper movable plate summing up the plates with radial holes for the "playing rod" formed therein and in the lower rubbing element. The lower fixed plate and the lower rubbing element comprise radial holes for ball scanning with the optical mouse. The motion sensor and detector are connected with a power supply. Additionally, the "power mouse" accommodates four rods to contract the upper first movable plate, the summing up plate, the lower fixed plate and the second movable plate. Springs are put on the rods between the first movable plate and the summing up plate; in the second movable plate, there is a slide bar equispaced from fasteners of pull bars and below the optical mouse, connected to one end of the lever angularly attached to an internal lateral wall of the cup, the second end of which is connected through a cup wall slot and a joint plate to a pull pin with a flat along the full length and extended through a pull guide mounted on an external lateral surface of the cut at its top and comprising a guide pin and a pull nut with a notch on a lateral surface. The cup of the power mouse has a square cross section.    USE - Medicine.    ADVANTAGE - Use of the invention allows extending the range and improving accuracy of the effect within the associated interrelated motivational development of physical and mental capacities of a child. 3 cl, 7 dwg