Is Vibration Therapy using the Power Plate Personal Machine a significant benefit for helping to counter a number of aging-related impairments causing a decline in function, or is it being over-hyped?

We see this as being of special value in countering age-related decline of physical performance leading to joint stiffness, muscle wasting, lack of energy and other symptoms of decline as a consequence of growing old. Even cognitive benefit can be achieved through having regular use of such a device. The insight you considered about the benefit of exercise being mediated through physiologic changes that enhance brain activity comes full circle in linking together many disparate findings in providing a growing scientific rationale that explains age-old observations of exercising being akin to of fountain of youth. This device captures a unique feature of the makeup of the body that perturbation through physical vibrations in triggering muscle fibers to contract will accomplish as much benefit as willful exercise routines and physical activity, but do so in a more efficient, shorter, time interval and with the convenience of doing so at home without any additional costs of commuting to an area for outdoor exercise, gym memberships, as well as making efficient use of opportune times such as being able to exercise after dark and in inclement weather. For those with joint issues, this is a gentle way to engage the muscles without overtaxing joints which would otherwise be subject to potential overuse or injury through many common exercise maneuvers.