Back in the 1970's I spent two months at Brooks City Base (then called Brooks AFB) taking part in a research program. Part of that was geeting to ride the centrifuge during a radioactive chromium-51 red cell survival study under G loads.
http://www.mgh.org/lab/CATALOG/TESTS/149.HTM
http://afrotc.tamu.edu/wing/pictures.asp?mainf=Fall%202004&subf=Brooks%20AFB%20Centrifuge
Yes, they shut down the runways years ago. How much need is there for an Air Force Base with inactive runways.