Face cooling with mist water increases cerebral blood flow during exercise: effect of changes in facial skin blood flow
Facial cooling (FC) increases cerebral blood flow (CBF) at rest and during exercise; however, the mechanism of this response remains unclear. The purpose of the present study was to test our hypothesis that FC causes facial vasoconstriction that diverts skin blood flow (SkBFface) toward the middle c...
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| Format: | Online |
| Language: | English |
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Frontiers Media S.A.
2012
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3429079/ |
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pubmed-3429079 |
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pubmed-34290792012-08-29 Face cooling with mist water increases cerebral blood flow during exercise: effect of changes in facial skin blood flow Miyazawa, Taiki Horiuchi, Masahiro Ichikawa, Daisuke Subudhi, Andrew W. Sugawara, Jun Ogoh, Shigehiko Physiology Facial cooling (FC) increases cerebral blood flow (CBF) at rest and during exercise; however, the mechanism of this response remains unclear. The purpose of the present study was to test our hypothesis that FC causes facial vasoconstriction that diverts skin blood flow (SkBFface) toward the middle cerebral artery (MCA Vmean) at rest and to a greater extent during exercise. Nine healthy young subjects (20 ± 2 years) underwent 3 min of FC by fanning and spraying the face with a mist of cold water (~4°C) at rest and during steady-state exercise [heart rate (HR) of 120 bpm]. We focused on the difference between the averaged data acquired from 1 min immediately before FC and last 1 min of FC. SkBFface, MCA Vmean, and mean arterial blood pressure (MAP) were higher during exercise than at rest. As hypothesized, FC decreased SkBFface at rest (−32 ± 4%) and to a greater extent during exercise (−64 ± 10%, P = 0.012). Although MCA Vmean was increased by FC (Rest, +1.4 ± 0.5 cm/s; Exercise, +1.4 ± 0.6 cm/s), the amount of the FC-evoked changes in MCA Vmean at rest and during exercise differed among subjects. In addition, changes in MCA Vmean with FC did not correlate with concomitant changes in SkBFface (r = 0.095, P = 0.709). MAP was also increased by FC (Rest, +6.2 ± 1.4 mmHg; Exercise, +4.2 ± 1.2 mmHg). These findings suggest that the FC-induced increase in CBF during exercise could not be explained only by change in SkBFface. Frontiers Media S.A. 2012-08-02 /pmc/articles/PMC3429079/ /pubmed/22934059 http://dx.doi.org/10.3389/fphys.2012.00308 Text en Copyright © 2012 Miyazawa, Horiuchi, Ichikawa, Subudhi, Sugawara and Ogoh. http://www.frontiersin.org/licenseagreement This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc. |
| repository_type |
Open Access Journal |
| institution_category |
Foreign Institution |
| institution |
US National Center for Biotechnology Information |
| building |
NCBI PubMed |
| collection |
Online Access |
| language |
English |
| format |
Online |
| author |
Miyazawa, Taiki Horiuchi, Masahiro Ichikawa, Daisuke Subudhi, Andrew W. Sugawara, Jun Ogoh, Shigehiko |
| spellingShingle |
Miyazawa, Taiki Horiuchi, Masahiro Ichikawa, Daisuke Subudhi, Andrew W. Sugawara, Jun Ogoh, Shigehiko Face cooling with mist water increases cerebral blood flow during exercise: effect of changes in facial skin blood flow |
| author_facet |
Miyazawa, Taiki Horiuchi, Masahiro Ichikawa, Daisuke Subudhi, Andrew W. Sugawara, Jun Ogoh, Shigehiko |
| author_sort |
Miyazawa, Taiki |
| title |
Face cooling with mist water increases cerebral blood flow during exercise: effect of changes in facial skin blood flow |
| title_short |
Face cooling with mist water increases cerebral blood flow during exercise: effect of changes in facial skin blood flow |
| title_full |
Face cooling with mist water increases cerebral blood flow during exercise: effect of changes in facial skin blood flow |
| title_fullStr |
Face cooling with mist water increases cerebral blood flow during exercise: effect of changes in facial skin blood flow |
| title_full_unstemmed |
Face cooling with mist water increases cerebral blood flow during exercise: effect of changes in facial skin blood flow |
| title_sort |
face cooling with mist water increases cerebral blood flow during exercise: effect of changes in facial skin blood flow |
| description |
Facial cooling (FC) increases cerebral blood flow (CBF) at rest and during exercise; however, the mechanism of this response remains unclear. The purpose of the present study was to test our hypothesis that FC causes facial vasoconstriction that diverts skin blood flow (SkBFface) toward the middle cerebral artery (MCA Vmean) at rest and to a greater extent during exercise. Nine healthy young subjects (20 ± 2 years) underwent 3 min of FC by fanning and spraying the face with a mist of cold water (~4°C) at rest and during steady-state exercise [heart rate (HR) of 120 bpm]. We focused on the difference between the averaged data acquired from 1 min immediately before FC and last 1 min of FC. SkBFface, MCA Vmean, and mean arterial blood pressure (MAP) were higher during exercise than at rest. As hypothesized, FC decreased SkBFface at rest (−32 ± 4%) and to a greater extent during exercise (−64 ± 10%, P = 0.012). Although MCA Vmean was increased by FC (Rest, +1.4 ± 0.5 cm/s; Exercise, +1.4 ± 0.6 cm/s), the amount of the FC-evoked changes in MCA Vmean at rest and during exercise differed among subjects. In addition, changes in MCA Vmean with FC did not correlate with concomitant changes in SkBFface (r = 0.095, P = 0.709). MAP was also increased by FC (Rest, +6.2 ± 1.4 mmHg; Exercise, +4.2 ± 1.2 mmHg). These findings suggest that the FC-induced increase in CBF during exercise could not be explained only by change in SkBFface. |
| publisher |
Frontiers Media S.A. |
| publishDate |
2012 |
| url |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3429079/ |
| _version_ |
1611552595226132480 |