Capt. Teressa Petosky, 22nd Medical Operations Squadron physical therapy flight commander, performs an upper-back manipulation on Master Sgt. Stephen Couvillion, 22nd Aircraft Maintenance Squadron first sergeant, Nov. 21, 2017, at McConnell Air Force Base, Kansas. The foam roller was placed under the upper back and Petosky pushed down to adjust Couvillion’s back during his exhale. (U.S. Air Force photo by Airman 1st Class Alan Ricker)
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