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4.2. Vita Index Measurement
The following screen appears when you start the measurement:
Your waveform (known as photoplethysmography
waveform) is detected due to blood volume
changes in the capillaries of your finger. The shape
of the waveform is a very important indicator of
measurement accuracy. Always ensure a consistent
waveform throughout the measuring process. Retake
your measurement if an inconsistent waveform is
observed.
The progress bar shown at the bottom indicates
the remaining duration of the measurement. A full
measurement takes about 30 seconds.
The Ideal waveform: Ensure your waveform
(shown below) follows this shape or retake your
measurement otherwise.