Patent ID: 8585607

Claim:
Apparatus for use with a subject who is undergoing respiration, the apparatus comprising: a motion sensor configured to sense motion of a subject; a control unit comprising: a breathing pattern analysis unit that is configured to analyze components of the sensed motion that result from the subject's respiration, the breathing pattern analysis unit comprising: double-movement-respiration-cycle-pattern-identification functionality that is configured to designate respiration cycles as being double-movement-respiration-cycles by determining that the cycles define two subcycles; and double-movement-respiration-cycle-event-identification functionality configured to identify a double-movement-respiration-cycle event by detecting that the subject has undergone a plurality of double-movement-respiration-cycles; and output-generation functionality configured to generate an output that is indicative of the subject having used accessory muscles in breathing, in response to identification of the double-movement-respiration-cycle event; and a user interface configured to display the output, wherein the double-movement-respiration-cycle-pattern-identification functionality is configured to distinguish between a first cycle that defines two subcycles, and a second cycle that does not define two subcycles, even if the first and second cycles have substantially similar amplitudes to one another.