Some sample data that Chapman shows: someone with no EIAH might reach 95% oxygen saturation in the blood during exercise at sea level, and 93% at altitude; some with EIAH might get down to 89% at ...

Misleading Graphs: Displaying a Change ... For triangles, it could be the altitude, the base or the area. Here are some examples to make this clearer. Figure 1.

The popular mapping service will tell you elevation changes on your walking route. If that sounds familiar it’s because Google introduced a similar feature for cyclists back in 2014.