| 摘要 |
According to at least some embodiments of the present invention: (i) a user's non-stationary exertion is detected; (ii) a virtual terrain is provided; and (iii) the detected non-stationary exertion is normalized for the virtual terrain. This is different than any stationary exercise machines that may normalize exertion for a virtual terrain because non-stationary exertion is used. This allows the user to exercise in a non-stationary way, such as by running cross-country. Non-stationary exercise is an advantage of at least some embodiments of the present invention because users often prefer non-stationary exercise to stationary exercise. At least some embodiments of the present invention make it possible to use mapping onto virtual terrains possible even in the non-stationary context. It is further noted that the present invention uses a virtual terrain (see DEFINITIONS section), rather than a virtual course (see DEFINITIONS section) without virtualized terrain factors (see DEFINITIONS section). By virtualizing terrain factors into a virtual terrain, at least some embodiments of the present invention provide a more realistic, realistically competitive and/or pleasing exercise experience for the user(s). By using both non-stationary exertion detection and a virtual terrain, in a single system in combination, exercise can be made more fun, competitive, pleasant and/or less unpleasant.
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