My name is Lloyd Shaw and was PowerPlates Product manager at the time the outsourcing of the product to China took place.
For anyone looking at Vibration Training for medical purposes it should be noted that none of the tests prior to 2004 have any relation to the new plastic Power Plate and the specs of the units used in those trests should be studied carefully before using these devices. MDD certification does not allow for changes to be made to a device.
Caution: Marketers and health professionals involved in sales will not disclose this voluntarily.