Measuring Maximum Tongue Protrusion Force (MTPF) in healthy normal adults


The purpose of this study is to measure tongue protrusion force and the maximum tongue protrusive force (MTPF) in healthy normal adults.


  • To measure MTPF, you will be seated in an upright posture.
  • The MTFP device will be inserted into your mouth and held in place by biting on the mouthpiece.
  • You will be able to freely breathe around the mouthpiece or through their nose.
  • You will push your tongue forward against the piston as hard as possible for 2-5 seconds.
  • You will then relax, remove the mouthpiece and rest for 1-2 minutes.
  • The force sensor at the base of the piston will provide the MTPF for each effort and is recorded.
  • You will repeat the MTPF measurement 5-10 times.

For additional study details, please contact Paul Davenport: 


18 to 65



Monetary compensation


Can be done from home



healthy volunteers

Principal Investigator

Paul Davenport, PhD



Contact Information

(352) 294-4025

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