Abstract: A sensor causes a string of lights, for example, those sold under the trademark LIGHT ROPE® for assisting persons to walk in a darkened room to avoid accidents. The system incorporates a motion detector (with or without time delay to keep lights ON) and a string of lights, for example, those sold under the trademark LIGHT ROPE®. The lights are laid out along a path in the home.

Abstract: Devices and methods for the assessment and biofeedback training of coordination skills of a subject critical to maximizing the power and accuracy of athletic ball-strike activities. In preferred embodiments, the invention provides for assessment and biofeedback training of weight bearing and center of gravity control under conditions requiring the athlete to strike a ball such that the distance and direction of flight trajectory of the ball are accurate relative to a performance goal. One embodiment of the invention includes a body movement sensor, a ball strike sensor, a display, and a computer. The body movement sensor provides an output indicative of the motion of the subject's body over a period of time including the moment of ball strike. The computer causes the display to show both a trajectory of the motion of the subject's body and the moment of ball strike in relation to a region of the trajectory.