Fig. 5.

Differential metabolites and differential metabolic pathways in the intestinal microbiota of athletes after race. Volcano plot and classification of differential metabolite changes in athletes' microbiota after race (Horizontal dashed line indicates the dashed line corresponding to P = 0.05 taken logarithmically, a vertical dashed line indicates the dashed line corresponding to FC threshold taken logarithmically. The dots meeting above the horizontal dashed line and on both sides of the vertical dashed line are also highlighted, where the red highlight on the right side indicates upward adjustment, and the green highlight on the left side indicates downward adjustment. (Blue dots indicate that the set threshold requirement is not met); Pie charts correspond horizontally to the categorical share of all differential metabolites in the positive/negative ion model (Categories include lipids and lipid-like molecules, organoheterocyclic compounds, organic acids and derivatives; benzenoids, phenylpropanoids and polyketides; organic oxygen compounds, alkaloids and derivatives).