Figure 4
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fcc8005/MediaObjects/13054_2009_Article_7436_Fig4_HTML.jpg)
Near-infrared spectroscopy plot at altitude. Typical near-infrared spectroscopy plot from 5,300 m-b (same subject as Figure 2). A, start of unloaded cycling; B, start of loaded cycling; C, maximum oxygen consumption.
Near-infrared spectroscopy plot at altitude. Typical near-infrared spectroscopy plot from 5,300 m-b (same subject as Figure 2). A, start of unloaded cycling; B, start of loaded cycling; C, maximum oxygen consumption.