| 摘要 |
A device (10) for obtaining metabolic parameters of a subject by determining the oxygen consumption and carbon dioxide production of the subject is provided. The device includes a portable body (12) defining an air flow path (20) between a mouthpiece (14) and a vent-hole (16). Inhaled and exhaled air is passed through the mouthpiece along the air flow path. Air flow meters (26, 30, 34) measure the flow rate of air exhaled through the mouthpiece, inhaled through the mouthpiece and expired into the atmosphere, respectively. At least one removable cartridge (24) is provided in the body, the cartridge having carbon dioxide sequestering material therein for sequestering both the inhaled and exhaled air of carbon dioxide. |
