A sleeve that provides mechanical stimulation to the arm to prevent
bone density loss. A primary goal of this product is to prevent
bone density loss that occurs during extended space travel. For one embodiment, only the predefined frequency specifications had to be met (between 40 Hz and 60 Hz). By meeting these frequencies for a duration of 30 minutes the product will theoretically prevent the loss of
bone density. Additionally, clinical trials will need to be conducted before this product can be marketed. The product includes of several mechanical vibrators attached to a sleeve. The vibrators are small unbalanced-
mass motors which are similar to those found in
cell phones. The motors are encased in dome shaped housings designed to reduce lateral vibrations along the arm. The product is controlled using an
Arduino board attached to the sleeve that actuates the motors. The motors, in turn, provide the specified frequency to the arm for 30 minutes. The spacing of the motor housings was determined from PEA simulations. This resulted in the motors being spaced 2 in apart along the arm at 90° increments around the axis of the arm. The controller has a display that allows for user interaction and includes a session
timer. In addition, this product is contemplated for use in reducing
muscle atrophy, eliminating
bed sores, and treating other ailments that can result from sedentary behavior.