PHYSIOLOGICAL STUDIES PERFORMED 

 AND PARAMETERS MEASURED AND COMPUTED 



Decompression Procedures 



A. Decompression from N2-O2 Saturation Exposures 



B. Decompression from Nonsaturation Exposures to Multiple Inert Gases 

 Nitrogen Narcosis Studies 



A. Cognitive Function Tests B. Taste and Olfactory Perception 



1. Arithmetic Ability C. Psychomotor Function 



2. Perceptual Speed 



3. Inductive Reasoning 1. Information Processing and 



4. Spatial Orientation Response Latency 



5. Short-Term Memory 2. Short-Term Memory Response 



Latency 



Pulmonary Function Studies 



A. Lung Volumes 



1. Vital Capacity 



2. Inspiratory Capacity 



3. Expiratory Reserve Volume 



4. Functional Residual Capacity 



5. Residual Volume 



6. Total Lung Capacity 



B. Lung Dynamics 



1. Maximum Expiratory Flow Rate from 200 to 1200 cc Vg 



2. Maximum Mid-Expiratory Flow Rate 



3. Maximum Mid-Inspiratory Flow Rate 



4. Percent of Vital Capacity Forcefully Expired in 1, 2, and 3 



Seconds 



5. Percent of Vital Capacity Forcefully Inspired in 1 Second 



6. Maximum Voluntary Ventilation 



C. Lung Mechanics 



1. Pulmonary Resistance to Inspiration During Tidal Breathing 



2. Flow Resistive Work of Ventilation During Tidal Breathing 



3. Esophageal Pressures at Functional Residual Capacity 



4. Esophageal Pressures at Total Lung Capacity 



5. Pulmonary Resistance to Expiration During the Forced Vital 



Capacity Maneuver at 507o and 75% of Vital Capacity 



6. Pulmonary Resistance to Inspiration During the Forced Vital 



Capacity Maneuver at 50% of Vital Capacity 



7. Peak Flow Rates During the Expiratory and Inspiratory Cycles 



of the Forced Vital Capacity Maneuver 



IX-28 



