Fig. 2

Certain types of exercise training and athlete diet affected the relative abundance of some microorganisms. a Comparison of gut microbiota relative abundance at the genus level in the three groups. Relative abundance represent log of percentage as whole microbiota. For example, when the relative abundance of a particular genus is 1, it means 10% of whole microbiota, and when it is 0, it means 1% and when it is −1, it means 0.1%. Controls versus bodybuilders: ⁺p < 0.05 or ⁺⁺p < 0.01, bodybuilders versus distance runners: ^*p < 0.05 or ^**p < 0.01, distance runners versus controls: ^¥p < 0.05 or ^¥¥p < 0.01. b Total fat intake negatively correlated with relative abundance of Bifidobacterium in bodybuilders (Correlation coefficient: −0.52, p-value: 0.048). c Total fat intake positively correlated with relative abundance of Sutterella in bodybuilders (Correlation coefficient: 0.58, p-value: 0.023)