Physiological monitoring devices and methods for noise reduction in physiological signals based on subject activity type

A monitoring device configured to be attached to a bodily location of a subject, the monitoring device comprising:

• a physiological sensor configured to detect and/or measure physiological data from the subject and generate a physiological sensor signal representative thereof;
• a plurality of motion sensors, each configured to detect and/or measure subject motion data and generate a respective motion sensor signal representative thereof;
• and
• at least one processor coupled to the physiological sensor and the plurality of motion sensors, wherein the at least one processor is configured to perform operations comprising:
• processing the respective motion sensor signal received from one of the plurality of motion sensors to identify an activity characteristic of the subject;
• selecting one of the plurality of motion sensors as a noise reference based on identification of the activity characteristic;
• and
• processing the physiological sensor signal received from the physiological sensor using the noise reference to generate an output signal having reduced noise relative to the physiological sensor signal.

A computer program product comprising a non-transitory computer readable storage medium having computer readable program code embodied therein, which, when executed by at least one processor, causes the at least one processor to perform operations comprising:

• processing a motion sensor signal to identify an activity characteristic of the subject;
• selecting one of a plurality of motion sensors as a noise reference based on identification of the activity characteristic;
• and
• processing a physiological sensor signal received from the physiological sensor using the noise reference to generate an output signal having reduced noise relative to the physiological sensor signal.