Figure 5.

Delta of Qinghai score for Chronic Mountain Sickness (CMS) diagnosis in adult human subjects after a 12-week treatment with spray-dried extract of maca (red or black) or with a placebo at high altitude. Data are mean ± standard error of the mean. Placebo: p > 0.05 over time. Red maca: p < 0.05 at week 4 and p < 0.01 at weeks 8 and 12 with respect to values at time 0. Black maca: p < 0.05 at weeks 8 and 12 with respect to values at time 0. Red maca group: p < 0.05 at weeks 4 and 8 with respect to the placebo and p < 0.01 with respect to the placebo at week 12.