Hemodynamic Changes in the Masseter and Superior Orbicularis Oris Muscles before and after Exercise Load: A Comparison between Young Adult Women and Middle-Aged to Old Adult Women

Figure 1

(a, b) A facemask was used for the measurement of the superior orbicularis oris muscle. Silicone impression material was placed onto a headrest, a chin cup, and an upper bow positioned above the root of the nose and fitted to the face in order to ensure accurate repositioning to the same position. (c) A pressure sensor was attached to a mounting base and fixed with adhesive tape.

(a)

(b)

(c)