Everyday duke activity status index (dasi) problems come down to one relationship between take care of self, climb up a hill or stairs, perform heavy housework, perform light housework, perform moderate housework, perform recreational activities, run, have sexual relations, perform strenuous sports, walk indoors, walk 1–2 blocks and do yardwork. This calculator turns those numbers into dasi score, vo₂ peak and mets, with the working shown so you can check the result rather than simply trust it.
What Is the Duke Activity Status Index (DASI) Calculator?
The duke activity status index (dasi) calculator gives you an estimate of dasi score, vo₂ peak and mets based on take care of self, climb up a hill or stairs, perform heavy housework, perform light housework, perform moderate housework, perform recreational activities, run, have sexual relations, perform strenuous sports, walk indoors, walk 1–2 blocks and do yardwork.
It is a quick reference figure rather than a diagnosis, and it is most useful for tracking how a number moves over time rather than for interpreting a single reading.
How the Duke Activity Status Index (DASI) Estimate Is Worked Out
The calculation follows published reference relationships, so it is a reasonable approximation when the inputs are accurate. It assumes an average adult and does not account for individual variation.
If you are comparing two people, or the same person over a period of weeks, keep the method and the inputs identical. A change in the method can easily look like a change in the person.
What This Calculator Does Not Do
It does not diagnose anything, and it does not replace advice from a clinician. If a figure comes out at an extreme, or if it differs sharply from what you expect, that is a reason to speak to a professional rather than to adjust the inputs.
Nothing you type here is stored or sent anywhere. The whole calculation happens in your browser.
A Worked Example
Working through an example, with take care of self set to 0.000000000000000, climb up a hill or stairs set to 0.000000000000000, perform heavy housework set to 0.000000000000000, the calculator returns dasi score of -, and vo₂ peak of -, and mets of -. Substitute your own figures and the same steps produce the same kind of answer.
Frequently Asked Questions
What do I need to work out dasi score?
Enter take care of self, climb up a hill or stairs, perform heavy housework, perform light housework, perform moderate housework, perform recreational activities, run, have sexual relations, perform strenuous sports, walk indoors, walk 1–2 blocks and do yardwork. The calculator then works through the relationship and reports dasi score, vo₂ peak and mets.
What does the duke activity status index (dasi) actually calculate?
It takes take care of self, climb up a hill or stairs, perform heavy housework, perform light housework, perform moderate housework, perform recreational activities, run, have sexual relations, perform strenuous sports, walk indoors, walk 1–2 blocks and do yardwork and converts them into dasi score, vo₂ peak and mets using the standard relationship for this problem. Each step is applied in turn, so every output is traceable back to the numbers you typed in.
How should I enter take care of self?
Use the value you actually have, in the unit shown next to the field. Enter every value in the same unit system. The calculator assumes the figures you supply are consistent, so it cannot correct a mistake that happens before the calculation starts.
Can I use this for a quick estimate as well as a precise answer?
Yes. The calculator is built for quick checks, so round your inputs to a sensible number of significant figures and the result will be just as useful. If you need more precision, keep the same method and add digits to the inputs rather than adjusting the method itself.
Why does a small change in one value move the answer so much?
That happens when an output depends on a ratio, because dividing by a small number magnifies any change in it. Check the units first, then check whether the value you entered is in the range the relationship was designed for.