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Article

Age-Related Changes in the Response of Finger Skin Blood Flow during a Braille Character Discrimination Task

1
Department of Physical and Occupational Therapy, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8520, Japan
2
Department of Physical Therapy, Faculty of Health Sciences, Kyoto Tachibana University, Kyoto 607-8175, Japan
3
Course of Rehabilitation, Department of Health Sciences, Tohoku Fukushi University, Miyagi 981-8522, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Reza Mortazavi
Healthcare 2021, 9(2), 143; https://doi.org/10.3390/healthcare9020143
Received: 1 December 2020 / Revised: 25 January 2021 / Accepted: 27 January 2021 / Published: 1 February 2021
(This article belongs to the Collection Health Care and Services for Elderly Population)
We hypothesized that age-related changes in sensory function might be reflected by a modulation of the blood flow response associated with tactile sensation. The aim of the present study was to clarify how the blood flow response of the fingers during concentrated finger perception is affected by aging. We measured the tactile-pressure threshold of the distal palmar pad of the index finger and skin blood flow in the finger (SBF) during Braille reading performed under blind conditions in young (n = 27) and older (n = 37) subjects. As a result, the tactile-pressure threshold was higher in older subjects (2.99 ± 0.37 log10 0.1 mg) than in young subjects (2.76 ± 0.24 log10 0.1 mg) (p < 0.01). On the other hand, the SBF response was markedly smaller in older subjects (−4.9 ± 7.0%) than in young subjects (−25.8 ± 15.4%) (p < 0.01). Moreover, the peak response arrival times to Braille reading in older and young subjects were 12.5 ± 3.1 s and 8.8 ± 3.6 s, respectively (p < 0.01). A decline in tactile sensitivity occurs with aging. Blood flow responses associated with tactile sensation are also affected by aging, as represented by a decrease in blood flow and a delay in the reaction time. View Full-Text
Keywords: skin blood flow; tactile-pressure threshold; discrimination task; aging skin blood flow; tactile-pressure threshold; discrimination task; aging
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MDPI and ACS Style

Murata, J.; Murata, S.; Kodama, T.; Nakano, H.; Soma, M.; Nakae, H.; Satoh, Y.; Kogo, H.; Umeki, N. Age-Related Changes in the Response of Finger Skin Blood Flow during a Braille Character Discrimination Task. Healthcare 2021, 9, 143. https://doi.org/10.3390/healthcare9020143

AMA Style

Murata J, Murata S, Kodama T, Nakano H, Soma M, Nakae H, Satoh Y, Kogo H, Umeki N. Age-Related Changes in the Response of Finger Skin Blood Flow during a Braille Character Discrimination Task. Healthcare. 2021; 9(2):143. https://doi.org/10.3390/healthcare9020143

Chicago/Turabian Style

Murata, Jun, Shin Murata, Takayuki Kodama, Hideki Nakano, Masayuki Soma, Hideyuki Nakae, Yousuke Satoh, Haruki Kogo, and Naho Umeki. 2021. "Age-Related Changes in the Response of Finger Skin Blood Flow during a Braille Character Discrimination Task" Healthcare 9, no. 2: 143. https://doi.org/10.3390/healthcare9020143

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