Mean Citrate synthase (CS) activity. Citrate synthase is a metabolic enzyme that regulates the first step in the Krebs Cycle. Activity of this enzyme is an indicator of aerobic function.
Mean Lactate hydrogenase activity (LDH). Lactate dehydrogenase is the terminal enzyme in anaerobic glycolysis. Its activity in an organism is an indicator of the individual's anaerobic capacity.
Mean Malate dehydrogenase (MDH) activity. Malate dehydrogenase (MDH) plays a role in the Krebs cycle in addition to other metabolic functions. MDH activity is an indicator of aerobic function.