Design of calculators
Modeling
The calculators of the site use mathematical models built from reliable scientific information.
They are designed to better estimate a field reality, which means with the lowest possible error margin.
As the formulas are established for the most cases, and not for special or extreme cases, they may sometime give results that do not exactly coincide with others coming from laboratory measures.
Making
The calculators are programmed in JavaScript, and PHP for the more complex. Unlike JavaScript, PHP runs on the server hosting the site.
The units of measurement used are those of the international system (ISO).
For the power calculators, the VO2max level is graphically symbolized by a scale varying from 1 to 5:
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40 to 50 ml/min/kg |
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50 to 60 ml/min/kg |
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60 to 70 ml/min/kg |
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70 to 80 ml/min/kg (maximum of women) |
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80 to 90 ml/min/kg (maximum of men) |
Improvement
The calculators are done to be useful, therefore your comments, suggestions or requests for improvement are welcome.