Figure 4.

The relative variable importance for the 15 most important amplicon sequence variants (ASVs), annotated with the highest taxonomic classification and receiver operating characteristic (ROC) curve, from the machine learning of the population stratified by physical activity (PA) based on the monitoring method: (a) objective PA monitoring (AUC 0.81 ± 0.08, n = 162); (b) subjective PA monitoring (AUC 0.69 ± 0.02, n = 1309). The microbes classified as either the genus Blautia or the family Lachnospiraceae are colored with dark or light blue, respectively.