The conduct of metabolic balances during simulated deep dives

Metabolic balance studies were carried out during a series of simulated deep saturation dives at a Government Research Laboratory at which the physiology of deep diving is under investigation. The methodology employed in controlling diets in the hyperbaric helium-oxygen atmosphere is described in detail. The discussion covers two main areas: dietary problems - including anorexia, changes in taste and food texture - and physiological effects - including nausea and high pressure nervous syndrome (HPNS).