Interventive-diagnostic device
Apparatus for improving health of a user is provided, including a first sensor, adapted to measure a first physiological variable, which is indicative of a voluntary action of the user. A second sensor is adapted to measure a second physiological variable, which is substantially governed by an autonomic nervous system of the user. Circuitry is adapted to receive respective first and second sensor signals from the first and second sensors, and, responsive thereto, to generate an output signal which directs the user to modify a parameter of the voluntary action.
1. Apparatus for measuring mechanical deformation, comprising:
a housing;
a base electrode;
a deformable electrode, mechanically coupled to the base electrode and to the housing, the base electrode and the deformable electrode defining a capacitor having capacitance, such that the capacitance is varied responsive to deformation of the deformable electrode; and
at least one deformable-electrode supporter,
wherein when no force is applied to the deformable electrode, a shortest distance between the base electrode and the deformable electrode varies along a length of the deformable electrode, the base electrode and the deformable electrode converging, at a fixed-region along the length of the base electrode, to a closest possible distance from each other, which is fixed by structure of the apparatus, and
wherein the deformable-electrode supporter is configured to support the deformable electrode at a support region that is remote from the fixed region.
2. Apparatus according to claim 1 , wherein the deformable electrode is adapted to be coupled to a user, such that the deformation is responsive to respiration of user.
3. Apparatus according to claim 1 , and further comprising a member, mechanically coupled to the deformable electrode, such that movement of the member deforms the deformable electrode and varies the capacitance.
4. Apparatus according to claim 3 , and further comprising a belt, adapted to be placed around a torso of a user and to cause movement of the member responsive to a change in circumference of the torso.
5. Apparatus according to claim 3 , wherein the member is adapted to be in physical contact with the deformable electrode.
6. A method for measuring mechanical deformation with apparatus, comprising mechanically coupling a base electrode to a deformable electrode, the base electrode and the deformable electrode defining a capacitor having capacitance, such that:
the capacitance is varied responsive to deformation of the deformable electrode,
when no force is applied to the deformable electrode, a shortest distance between the base electrode and the deformable electrode varies along a length of the deformable electrode, the base electrode and the deformable electrode converging, at a fixed-region along the length of the base electrode, to a closest possible distance from each other, which is fixed by structure of the apparatus, and
the deformable electrode is supported by a deformable electrode supporter at a support region that is remote from the fixed region.