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tonka97:In fact the Valsalva Maneuver is required to equalize barometric forces in the middle ear, and to optimize sound transmission.
Hi tonka97,
You're very much mistaken there, my friend. The Valsalva manuever proper is never required.
What is required is equalization of the differential pressure gradient across the eardrum and this can be achieved by, amongst others, the:
Toynbee maneuver
Beance tubaire volontaire (BTV)
Roydhouse maneuver
Edmonds technique
Lowry technique
Twitch
Regards,
DocVikingo