Treatment of osteopenia and osteoporosis and stimulating bone growth

A vibration device for positioning against a subject, comprising:

• a motor configured to be in vibrational contact with an area of the subject;
• a support for maintaining the motor in vibrational contact with the area of the subject;
• one or more motor sensors in communication and proximity with the motor for receiving a first feedback relating to one or more parameters of the motor;
• an accelerometer positioned along the support for providing a second feedback relating to a fit of the motor relative to the area of the subject, wherein the accelerometer is positioned to face the subject in contact against the area such that the fit of the motor relative to the area is indicative of a tightness of the motor against the area;
• a controller in communication with the motor and the accelerometer, wherein the controller is configured to receive the first feedback through the one or more motor sensors relating to motor movement or motor frequency and determine an amount of vibrational energy to be applied to the area of the subject which is sufficient for transferring the vibrational energy to bone within a body of the subject,
• wherein the motor, the one or more motor sensors, and the controller are contained within an enclosure worn by the subject such that the vibration device is portable when secured to the subject, and
• wherein the controller is further configured to adjust the one or more parameters of the motor in response to the first feedback relating to motor movement or motor frequency and further in response to the second feedback relating to the fit of the motor relative to the area of the subject until the first feedback relating to motor movement or motor frequency and the second feedback relating to the fit of the motor are adjusted to be within a predetermined range during a treatment.