Oxygen Saturation and Pulse Rate.

The graph below (left) shows the development of heart rate (pulse) and oxygen saturation as a function of time and elevation. The units on the (horizontal) X-axis are days.
The upper curves are heart rate (pulse) per six second interval, while the lower curves are oxygen saturation/pulse.

Legend:
BLACK: Elevation in thousand meter on the given days.                                                                         This figure shows the lower curves from the previous plot in more detail.
BLUE: Petter, age 60.
GREEN: Duane, age 60.
RED: Rob, age 50.
CYAN: &Adam W., age 28.
Petter seems consistently less affected by altitude than the rest of the team.
All measurements are taken in the morning before getting up.
Often an additional measurement was taken in the afternoon,
this would typically reflect a higher level of activity, almost always giving a higher heart rate reading.
A normal saturation/pulse quotient would be near 2, for example an oxygen saturation of 98 and rest heart rate (pulse) of 49. A ratio less than one is a clear sign of acclimatization trouble.

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