Cargando…
Effect of Different Local Vibration Frequencies on the Multiscale Regularity of Plantar Skin Blood Flow
Local vibration has shown promise in improving skin blood flow (SBF). However, there is no consensus on the selection of the best vibration frequency. An important reason may be that previous studies utilized time- and frequency-domain parameters to characterize vibration-induced SBF responses. Thes...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7712514/ https://www.ncbi.nlm.nih.gov/pubmed/33287056 http://dx.doi.org/10.3390/e22111288 |
_version_ | 1783618389218951168 |
---|---|
author | Liao, Fuyuan Zhang, Keying Zhou, Lingling Chen, Yanni Elliott, Jeannette Jan, Yih-Kuen |
author_facet | Liao, Fuyuan Zhang, Keying Zhou, Lingling Chen, Yanni Elliott, Jeannette Jan, Yih-Kuen |
author_sort | Liao, Fuyuan |
collection | PubMed |
description | Local vibration has shown promise in improving skin blood flow (SBF). However, there is no consensus on the selection of the best vibration frequency. An important reason may be that previous studies utilized time- and frequency-domain parameters to characterize vibration-induced SBF responses. These parameters are unable to characterize the structural features of the SBF response to local vibrations, thus contributing to the inconsistent findings seen in vibration research. The objective of this study was to provide evidence that nonlinear dynamics of SBF responses would be an important aspect for assessing the effect of local vibration on SBF. Local vibrations at 100 Hz, 35 Hz, and 0 Hz (sham vibration) with an amplitude of 1 mm were randomly applied to the right first metatarsal head of 12 healthy participants for 10 min. SBF at the same site was measured for 10 min before and after local vibration. The degree of regularity of SBF was quantified using a multiscale sample entropy algorithm. The results showed that 100 Hz vibration significantly increased multiscale regularity of SBF but 35 Hz and 0 Hz (sham vibration) did not. The significant increase of regularity of SBF after 100 Hz vibration was mainly attributed to increased regularity of SBF oscillations within the frequency interval at 0.0095–0.15 Hz. These findings support the use of multiscale regularity to assess effectiveness of local vibration on improving skin blood flow. |
format | Online Article Text |
id | pubmed-7712514 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-77125142021-02-24 Effect of Different Local Vibration Frequencies on the Multiscale Regularity of Plantar Skin Blood Flow Liao, Fuyuan Zhang, Keying Zhou, Lingling Chen, Yanni Elliott, Jeannette Jan, Yih-Kuen Entropy (Basel) Article Local vibration has shown promise in improving skin blood flow (SBF). However, there is no consensus on the selection of the best vibration frequency. An important reason may be that previous studies utilized time- and frequency-domain parameters to characterize vibration-induced SBF responses. These parameters are unable to characterize the structural features of the SBF response to local vibrations, thus contributing to the inconsistent findings seen in vibration research. The objective of this study was to provide evidence that nonlinear dynamics of SBF responses would be an important aspect for assessing the effect of local vibration on SBF. Local vibrations at 100 Hz, 35 Hz, and 0 Hz (sham vibration) with an amplitude of 1 mm were randomly applied to the right first metatarsal head of 12 healthy participants for 10 min. SBF at the same site was measured for 10 min before and after local vibration. The degree of regularity of SBF was quantified using a multiscale sample entropy algorithm. The results showed that 100 Hz vibration significantly increased multiscale regularity of SBF but 35 Hz and 0 Hz (sham vibration) did not. The significant increase of regularity of SBF after 100 Hz vibration was mainly attributed to increased regularity of SBF oscillations within the frequency interval at 0.0095–0.15 Hz. These findings support the use of multiscale regularity to assess effectiveness of local vibration on improving skin blood flow. MDPI 2020-11-13 /pmc/articles/PMC7712514/ /pubmed/33287056 http://dx.doi.org/10.3390/e22111288 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Liao, Fuyuan Zhang, Keying Zhou, Lingling Chen, Yanni Elliott, Jeannette Jan, Yih-Kuen Effect of Different Local Vibration Frequencies on the Multiscale Regularity of Plantar Skin Blood Flow |
title | Effect of Different Local Vibration Frequencies on the Multiscale Regularity of Plantar Skin Blood Flow |
title_full | Effect of Different Local Vibration Frequencies on the Multiscale Regularity of Plantar Skin Blood Flow |
title_fullStr | Effect of Different Local Vibration Frequencies on the Multiscale Regularity of Plantar Skin Blood Flow |
title_full_unstemmed | Effect of Different Local Vibration Frequencies on the Multiscale Regularity of Plantar Skin Blood Flow |
title_short | Effect of Different Local Vibration Frequencies on the Multiscale Regularity of Plantar Skin Blood Flow |
title_sort | effect of different local vibration frequencies on the multiscale regularity of plantar skin blood flow |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7712514/ https://www.ncbi.nlm.nih.gov/pubmed/33287056 http://dx.doi.org/10.3390/e22111288 |
work_keys_str_mv | AT liaofuyuan effectofdifferentlocalvibrationfrequenciesonthemultiscaleregularityofplantarskinbloodflow AT zhangkeying effectofdifferentlocalvibrationfrequenciesonthemultiscaleregularityofplantarskinbloodflow AT zhoulingling effectofdifferentlocalvibrationfrequenciesonthemultiscaleregularityofplantarskinbloodflow AT chenyanni effectofdifferentlocalvibrationfrequenciesonthemultiscaleregularityofplantarskinbloodflow AT elliottjeannette effectofdifferentlocalvibrationfrequenciesonthemultiscaleregularityofplantarskinbloodflow AT janyihkuen effectofdifferentlocalvibrationfrequenciesonthemultiscaleregularityofplantarskinbloodflow |