MFO                     Maximal Fat Oxidation & FatMax Function
MFO_df                  MFO test dataframe
MFO_kinetics            Maximal Fat Oxidation Kinetics (SIN Model)
MFOs                    Maximal Fat Oxidation calculation of multiple
                        databases
VO2max_df               Graded exercise test dataframe
basal_df                Basal test dataframe
