K H Hyatt, P C Johnson, G W Hoffler, P C Rambaut, J A Rummel, S B Hulley, J M Vogel, C Huntoon, C P Spears
In the course of Apollo 15, physiologic abnormalities, manifested by ectopic activity on the ECG and unusual alterations in excerise tolerance, occurred in the crew of the Lunar Excursion Module. These were associated with decreases in total body potassium, measured by 42K, of 10% and 15%. The possibility of inadequate potassium (K plus) intake existed. A simulation study was performed prior to Apollo 16, corresponding in duration to Apollo 15. Subjects endured the same sleep aberrations and caloric expenditure as the Apollo 15 astronauts...
January 1975: Aviation, Space, and Environmental Medicine