| 摘要 |
A method of measuring expended energy of a moving body (e.g. human body), comprises the steps: i) providing at least one first sensor for measuring position data and/or orientation data and/or dynamic data of a first part of the moving body; ii) providing at least one second sensor for measuring relative position data and/or orientation data and/or dynamic data of a second part of the moving body, wherein the second part is moveable relative to the first part; iii) using the at least one first sensor to make a first measurement of the position and/or orientation and/or dynamics of the first part over a period of time and subsequently calculating a global expended energy of the first part relative to a reference frame from the first measurement; iv) using the at least one second sensor to make a second measurement of the position and/or orientation and/or dynamics of the second part over said period of time and subsequently calculating a relative expended energy of the second part relative to the first part from the first and second measurements; and v) calculating the total expended energy of the moving body by summing the global expended energy with the relative expended energy;wherein the at least one first sensor comprises a global positioning system (GPS) sensor and/or an inertial measurement unit and/or a first plurality of reference indicia measurable by an image capture device; and the at least one second sensor comprises an inertial measurement unit and/or a second plurality of reference indicia measurable by an image capture device. A corresponding apparatus is also disclosed.
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