Metabolic and cardiopulmonary monitor

A system, comprising:

• a control unit configured to be worn by a subject, the control unit comprising:
• one or more processors operatively coupled to a memory;
• a wireless transceiver;
• and
• a power supply for powering the one or more processors;
• a computing device independent of the control unit, the computing device comprising:
• one or more processors operatively coupled to a memory;
• a wireless transceiver in communication with the wireless transceiver of the control unit;
• and
• a display;
• and
• at least one primary sensor mountable relative to the subject, the at least one primary sensor being configured to generate one or more primary signals representative of a respiratory volume of the subject, and to communicate the one or more primary signals to one of the control unit and the computing device;
• one or more secondary sensors mountable relative to the subject, a given sensor of the one or more secondary sensors being configured to generate one or more secondary signals distinct from the one or more primary signals and representative of a flow velocity of a respiratory stream of the subject, and to communicate the one or more secondary signals to one of the control unit and the computing device;
• and
• a sampling module including an interfacing component configured for fluid coupling to the respiratory stream of the subject, the interfacing component comprising a manifold comprising a flow channel configured for directing a flow of the respiratory stream of the subject, the flow channel comprising a support structure comprising a first portion extending across the flow channel in a first direction and a second portion extending across the flow channel in a second direction different than the first direction, wherein the at least one secondary sensor is mounted on the first portion of the support structure and one or more sample ports are mounted on the second portion of the support structure.