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FIELD JOURNAL
Tracking Astronaut Health, Important on ISS
by Janis Davis-Street
May 1, 2000
Interviewer: Lori Keith
Since I last wrote, we have been busy preparing for
our next round of calcium kinetics experiments that will fly on STS-107.
These experiments will track the effects of space flight on bone metabolism
and the movement of calcium throughout the body. We will be looking at
different hormonal markers of bone health in blood and urine. STS-107
will be a 16-day shuttle flight, and our calcium kinetics study is part
of a complement of four life science experiments called the PhAB-4 (Physiology
and Biochemistry - 4). This is very exciting for us, as we've flown this
protocol (experiment) on long duration missions (months) like the Mir
program, but never on short duration (weeks) Shuttle flights.
Getting this experiment ready, to fly on the Shuttle,
takes a lot of preparation and planning. Everyone in my group has attended
their share of meetings to make this happen. There are many meetings,
forms, and documents required, and it is a long process to integrate an
experiment/payload to fly on-board the shuttle. We must be able to meet
the space and power constraints (among other things), and we must have
willing subjects. To me, it is an amazing process what must be accomplished
to fly a payload on the Space Shuttle. We have also been working on our
Nutritional Status Assessment protocol, which is a group of tests that
look at astronaut health before, during and after space flight. This has
been made a medical requirement for all long duration crews. Every astronaut
who lives on the International Space Station will take part in this protocol.
One of the requirements is the Food Frequency Questionnaire, which we
have revised. The questionnaire is computerized, and will be filled out
weekly by each crewmember. We have completed pre-flight assessments for
the prime and back up U.S. crews for Expedition I. The next assessments
will be performed during the L-45 to L-30 timeframe (30 - 45 days before
launch). We are looking forward to being an integral part of crew health
on ISS.
I was involved in a few activities during National
Engineers Week. I visited Fleming Middle School, in Houston's Fifth Ward
area. It was such a wonderful experience for me. The kids were so hungry
to learn about the space program, and asked some of the best questions
I have ever been asked. I think these students were definitely a compliment
to their science teachers. I spoke to about 150 students and teachers
about bone and the bone loss attributed to human space flight. I learned
a lot from these very enthusiastic young people, and I think they did,
too. I also did a Space Team Online Chat for Black History Month. I always
enjoy these chats.
The rest of my time has been spent working on manuscripts
for publication of our findings, and helping with proposal writing. We
have a lot of data collected, which we need to summarize and interpret
in response to our research questions.
Besides work, I have been busy as the Chair of Community
Outreach for the Wyle National Management Association. We just had our
American Enterprise Speech Contest, a contest open for high school students.
I always enjoy working with young people. Our chapter also works with
Habitat for Humanity - and I have enjoyed painting during our workdays
in Dickinson. We are also helping to raise funds for the March of Dimes
WalkAmerica, and the St. Jude's Children's Research Hospital. Last, but
not least, I have been very busy with my boys and their baseball.
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