Measurement of stapes mobility in guinea pigs and rabbits

Hiroshi Wada, Takuji Koike, Yu Yuasa, Tetsuaki Kawase, Hiroaki Fujii

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


In tympanoplasty, it is essential to know the condition of the stapes. However, it has been difficult to evaluate stapes mobility in routine measurement. With the eye on improving future clinical practice, in this study we developed a new, easy system of measuring stapes mobility quantitatively and, as a first step, applied it to measurement of the relationship between the load and displacement of the stapes in guinea pigs and rabbits. The stapes displacement increased linearly with an increase in load in the small displacement region, and increased nonlinearly in the large displacement region. The slope of the regression line of this stiffness curve in the small displacement region was used as an index of the stapes mobility. The values in the guinea pigs and rabbits were 16±7 N/m and 115±25 N/m, respectively. A significant difference between the two species was observed.

Original languageEnglish
Pages (from-to)158-164
Number of pages7
JournalHearing Research
Issue number1-2
Publication statusPublished - 2001


  • Measurement
  • Mobility
  • Sensor
  • Stapes
  • Stiffness

ASJC Scopus subject areas

  • Sensory Systems


Dive into the research topics of 'Measurement of stapes mobility in guinea pigs and rabbits'. Together they form a unique fingerprint.

Cite this