Additional file 8: of Cardiorespiratory fitness as a predictor of intestinal microbial diversity and distinct metagenomic functions

Optimal clustering selection of bacterial data. The number of optimal clustering of all data was determined using the Calinski-Harabasz (CH) index. Optimal number of clusters did not identify the classical three enterotypes but rather favored a two cluster partitioning. (TIFF 11074Â kb