| 摘要 |
A physiological condition monitor that is usable in determining a user's oxygen consumption (VO2) includes a heart rate monitor that monitors a user's heart rate, a respiration monitor, and a processor. The respiration monitor monitors how much a circumference of the user's chest changes as the user breaths. The respiration monitor may include a material that has electrical characteristics that change as the material expands and contracts. The changes in the electrical characteristics may be proportional to the changes in the circumference of the user's chest. The processor uses the changes in the circumference of the user's chest to approximate the volume of air the user inhales as the user breaths. Using the volume approximation and the user's heart rate, the processor determines the user's level of oxygen consumption (VO2). |
