Logoped Phoniatr Vocol. 2014;4:1-6.
The aim of the study was to determine the impact of body height on speaking fundamental frequency (SF0) while controlling for as many as possible influencing factors such as habits, biophysical conditions, medication, diseases, and others. Fifty-eight females were analyzed during spontaneous speech (i.e. explaining driving directions or a cooking recipe) of at least 60 seconds at comfortable pitch and loudness. The subjects showed a moderate negative and significant correlation between body height and SF0 (r = -0.40, P = 0.002). With r2 = 0.16, however, a reasonable portion (16%) of the variance in SF0 is explained by the variance in body height. In comparison with other factors for which a correlation with SF0 was mentioned in literature (hypothyrodism, hemodialysis, auditory-maleness after female-to-male transsexualism, body weight, body mass index, and body fat), body height accounted for most of the proportion of SF0 in females. It is therefore possible to validate body height as a factor to account for in clinical F0 measurement.