"Peter Duniho" wrote in message
Valsalva, actually. It's not just the Air Force that uses the term.
Though, I suppose they could have been the ones to corrupt it into "valve
salvo"...but I'm guessing that's just you, since I've never heard it
called
"valve salvo" before.


Yes. Valsalva, or more properly "Valsalva's maneuver". Forcing expiration
pressure against a closed airway. Named for Antonio Valsalva, Italian
medico of the early 18th century, I believe.