Effect of changes in finger skin temperature on vibrotactile perception threshold. 2007

Barbara Harazin, and Agnieszka Harazin-Lechowska
Occupational Health Protection Unit, Public Health Faculty, Medical University of Silesia, Katowice, Poland. bharazin@slam.katowice.pl

OBJECTIVE The purpose of the study was to determine the influence of finger skin temperature on the vibrotactile perception threshold at fingertips, determined according to the method described in ISO 13091-1 standard. METHODS The effect of the cooling and warming of hands on vibration perception was investigated in 21 healthy women. Vibration perception measurements were conducted using P8 pallesthesiometer (EMSON-MAT, Poland) designed according to ISO 13091-1 standard requirements. Vibrotactile perception threshold was measured in two series of experiments performed on the index finger of the right hand at frequencies of 4 Hz, 25 Hz and 125 Hz and skin temperature of 33 degrees C, 28 degrees C, 23 degrees C, 18 degrees C and 15 degrees C. RESULTS The findings of the study showed that as the finger skin temperature decreased, the vibrotactile perception threshold increased, but only at the frequency of 125 Hz. The changes in finger skin temperature did not affect the vibration perception at 4 Hz and 25 Hz. No significant differences in VPT were found between the two experimental series. CONCLUSIONS A short-time cooling and warming of hands had a significant impact on increasing or decreasing vibrotactile perception threshold, only at the highest frequency mediated by Pacinian mechanoreceptors.

UI MeSH Term Description Entries
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011044 Poland A country in central Europe, east of Germany. The capital is Warsaw. Polish People's Republic,Republic of Poland
D005260 Female Females
D005385 Fingers Four or five slender jointed digits in humans and primates, attached to each HAND. Finger
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012881 Skin Temperature The TEMPERATURE at the outer surface of the body. Skin Temperatures,Temperature, Skin,Temperatures, Skin
D014110 Touch Sensation of making physical contact with objects, animate or inanimate. Tactile stimuli are detected by MECHANORECEPTORS in the skin and mucous membranes. Tactile Sense,Sense of Touch,Taction,Sense, Tactile,Senses, Tactile,Tactile Senses,Tactions,Touch Sense,Touch Senses
D014732 Vibration A continuing periodic change in displacement with respect to a fixed reference. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Vibrations
D016273 Occupational Exposure The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation. Exposure, Occupational,Exposures, Occupational,Occupational Exposures

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