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POCC Status Report SLS-1 

JUNE 6, 1991


Members of the Spacelab Life Sciences 1 crew are busy conducting 
their second day of research in orbit.  Most of today's 
activities are related to baroreflex, pulmonary function, and 
muscle protein metabolism studies.   The baroreflex studies focus 
on how the human blood pressure and heart regulation mechanisms 
work in microgravity.  The pulmonary function tests are the first
studies of lung function in space.  Cardiovascular data to help 
determine cardiac output (the amount of blood pumped out of the 
heart per minute) also is being gathered today.  This activity 
was delayed yesterday while a critical piece of hardware was 
allowed to stabilize. The device, the Gas Anaylzer Mass 
Spectrometer, is now functioning properly. Finally, crewmembers 
will be injected with tracers that will give information related 
to body fluid volumes.  The crew which awoke at approximately 5 
a.m. Central Time began its 12-hour research day about 7 a.m.

Yesterday the crew had a smooth and productive first day in space 
accomplishing a majority of planned science activities.   
Scheduled  metabolic studies were fully accomplished as were the 
activities related to the immunology studies.  Cardiovascular 
data including echocardiographs, blood pressure readings, heart
rate readings, and central venous pressure measurements were all 
accomplished.  The central venous pressure catheter that had been 
inserted into one of the Payload Specialists previous to flight 
was removed as planned.

-- 
Eric Behr, Illinois State University, Mathematics Department
Internet: ejbehr@rs6000.cmp.ilstu.edu    Bitnet: ebehr@ilstu