title: 21-day Balneotherapy Improves Cardiopulmonary Function and Physical Capacity of Pilots
abstract: [Purpose] The purpose of this study was to investigate the effects of balneotherapy on the cardiopulmonary function and physical capacity of pilots. [Subjects] Thirty-six healthy male pilots were recruited. [Methods] All subjects received entire-body immersion bath therapy in thermomineral water for 30 min a day for 21 days. Electrocardiograms, carotid pulse traces, and phonocardiograms were recorded using a cardiac function measuring device. Pulmonary function tests were performed using a Pony 
journal: Journal of Physical Therapy Science