20090025483 | Wearable position or motion sensing systems or methods - A wearable system of one or more body position or motion sensors can include a flexible sensing element to be coupled to or worn on a body. When straight, the flexible sensing element defines a longitudinal axis. It includes a lumen carrying a flowable substance, such as a liquid, gas, or gel. A measurable parameter of the flowable substance, such as pressure, volume, or flow, provides an indication of a longitudinal axial bending, twisting, or elongation, such as due to movement of at least one body part to which the sensing element is coupled. The lumen is coupled to a transducer by at least one conduit for the flowable substance. The transducer converts the measurable parameter of the flowable substance into a transducer output signal indicative of the longitudinal axial bending, twisting, or elongation of the sensing element, from which body part position or movement information can be derived. | 01-29-2009 |