[Metabolic disorders in men kept in an environment with a low ammonia content and their correction by physical...

In two series of prolonged studies metabolic changes of men kept in an environment with an ammonia concentration of 2 and 5 mg/m3 were investigated. In this chronic study the following changes were seen: acetone in the exhaled air increased; glycolysis and lactate dehydrogenase enhanced; catalase decreased; changes of acid-base equilibrium manifested as metabolic acidosis of varying degree. The use of exercises of different workloads showed that those at 50% VO2max were most beneficial.