Acute effects of the different relaxation periods during passive intermittent static stretching on arterial stiffness.

To clarify whether the relaxation period during stretching affects the degree of elevated shear rate and the degree of reduction of arterial stiffness, we examined relaxation duration to build an adequate stretching protocol. In Experiment 1, the changes in cardiac output, the shear rate in the post...

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Autores principales: Yuya Higaki, Yosuke Yamato, Shumpei Fujie, Kenichiro Inoue, Mio Shimomura, Shosaku Kato, Naoki Horii, Shigehiko Ogoh, Motoyuki Iemitsu
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Publicado: Public Library of Science (PLoS) 2021
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Acceso en línea:https://doaj.org/article/6bd1eca297694c16b6c7384e2b610974
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spelling oai:doaj.org-article:6bd1eca297694c16b6c7384e2b6109742021-12-02T20:13:09ZAcute effects of the different relaxation periods during passive intermittent static stretching on arterial stiffness.1932-620310.1371/journal.pone.0259444https://doaj.org/article/6bd1eca297694c16b6c7384e2b6109742021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0259444https://doaj.org/toc/1932-6203To clarify whether the relaxation period during stretching affects the degree of elevated shear rate and the degree of reduction of arterial stiffness, we examined relaxation duration to build an adequate stretching protocol. In Experiment 1, the changes in cardiac output, the shear rate in the posterior tibial artery, and blood volume in the calf muscle were measured during recovery (0-60 s) from a single bout of one-legged passive calf stretching in 12 healthy young men. In Experiment 2, the effects of different relaxation periods (5-, 10-, 20-, and 60-s) of passive one-legged intermittent calf stretching (30-s × 6 sets) on the femoral-ankle pulse wave velocity (faPWV) as an index of peripheral arterial stiffness were identified in 17 healthy young men. As a result, the stretched leg's shear rate significantly increased from 0 to 10th s after stretching. The muscle blood volume in the stretched leg significantly reduced during stretching, and then significantly increased during the recovery period after stretching; however, cardiac output remained unchanged during stretching and recovery. Additionally, the reduction in faPWV from the pre-stretching value in the stretched leg was significantly larger in the protocol with 10-s and 20-s relaxation periods than that in the non-stretched leg, but this did not differ in the 5-s and 60-s relaxation periods. These findings suggest that the relaxation periods of intermittent static stretching that cause a high transient increase in shear rate (via reperfusion after microvascular compression by the stretched calf muscles) are effective to reduce arterial stiffness.Yuya HigakiYosuke YamatoShumpei FujieKenichiro InoueMio ShimomuraShosaku KatoNaoki HoriiShigehiko OgohMotoyuki IemitsuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11, p e0259444 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Yuya Higaki
Yosuke Yamato
Shumpei Fujie
Kenichiro Inoue
Mio Shimomura
Shosaku Kato
Naoki Horii
Shigehiko Ogoh
Motoyuki Iemitsu
Acute effects of the different relaxation periods during passive intermittent static stretching on arterial stiffness.
description To clarify whether the relaxation period during stretching affects the degree of elevated shear rate and the degree of reduction of arterial stiffness, we examined relaxation duration to build an adequate stretching protocol. In Experiment 1, the changes in cardiac output, the shear rate in the posterior tibial artery, and blood volume in the calf muscle were measured during recovery (0-60 s) from a single bout of one-legged passive calf stretching in 12 healthy young men. In Experiment 2, the effects of different relaxation periods (5-, 10-, 20-, and 60-s) of passive one-legged intermittent calf stretching (30-s × 6 sets) on the femoral-ankle pulse wave velocity (faPWV) as an index of peripheral arterial stiffness were identified in 17 healthy young men. As a result, the stretched leg's shear rate significantly increased from 0 to 10th s after stretching. The muscle blood volume in the stretched leg significantly reduced during stretching, and then significantly increased during the recovery period after stretching; however, cardiac output remained unchanged during stretching and recovery. Additionally, the reduction in faPWV from the pre-stretching value in the stretched leg was significantly larger in the protocol with 10-s and 20-s relaxation periods than that in the non-stretched leg, but this did not differ in the 5-s and 60-s relaxation periods. These findings suggest that the relaxation periods of intermittent static stretching that cause a high transient increase in shear rate (via reperfusion after microvascular compression by the stretched calf muscles) are effective to reduce arterial stiffness.
format article
author Yuya Higaki
Yosuke Yamato
Shumpei Fujie
Kenichiro Inoue
Mio Shimomura
Shosaku Kato
Naoki Horii
Shigehiko Ogoh
Motoyuki Iemitsu
author_facet Yuya Higaki
Yosuke Yamato
Shumpei Fujie
Kenichiro Inoue
Mio Shimomura
Shosaku Kato
Naoki Horii
Shigehiko Ogoh
Motoyuki Iemitsu
author_sort Yuya Higaki
title Acute effects of the different relaxation periods during passive intermittent static stretching on arterial stiffness.
title_short Acute effects of the different relaxation periods during passive intermittent static stretching on arterial stiffness.
title_full Acute effects of the different relaxation periods during passive intermittent static stretching on arterial stiffness.
title_fullStr Acute effects of the different relaxation periods during passive intermittent static stretching on arterial stiffness.
title_full_unstemmed Acute effects of the different relaxation periods during passive intermittent static stretching on arterial stiffness.
title_sort acute effects of the different relaxation periods during passive intermittent static stretching on arterial stiffness.
publisher Public Library of Science (PLoS)
publishDate 2021
url https://doaj.org/article/6bd1eca297694c16b6c7384e2b610974
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