Acute Effects of Dermal Suction on Passive Muscle and Joint Stiffness

The aim of the present study was to examine the acute effects of dermal suction on the passive mechanical properties of specific muscles and joints. Dermal suction was applied to the calves of 24 subjects. Passive plantar flexion torque was measured with the right knee fully extended and the right a...

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Autores principales:	Shota Enomoto, Tomonari Shibutani, Yu Akihara, Miyuki Nakatani, Kazunori Yamada, Toshiaki Oda
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	elastography flexibility medial gastrocnemius shear wave velocity ultrasound Medicine R
Acceso en línea:	https://doaj.org/article/1bff021334ca4cdab5899a3aa68021d5
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spelling	oai:doaj.org-article:1bff021334ca4cdab5899a3aa68021d52021-11-25T17:44:36ZAcute Effects of Dermal Suction on Passive Muscle and Joint Stiffness10.3390/healthcare91114832227-9032https://doaj.org/article/1bff021334ca4cdab5899a3aa68021d52021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9032/9/11/1483https://doaj.org/toc/2227-9032The aim of the present study was to examine the acute effects of dermal suction on the passive mechanical properties of specific muscles and joints. Dermal suction was applied to the calves of 24 subjects. Passive plantar flexion torque was measured with the right knee fully extended and the right ankle positioned at 20°, 10°, 0°, and −10° angles, where 0° represents the ankle neutral position, and positive values correspond to the plantar flexion angle. The shear wave velocity (SWV) (m/s) of the medial gastrocnemius was measured in the same position using ultrasound shear wave elastography. The relationship between the joint angle and passive torque at each 10° angle was defined as passive joint stiffness (Nm/°). Passive muscle and joint stiffness were measured immediately before and after the dermal suction protocol. When the ankle joint was positioned at 20° (<i>r</i> = 0.53, <i>P</i> = 0.006), 10° (<i>r</i> = 0.43, <i>P</i> = 0.030), and −10° (<i>r</i> = 0.60, <i>P</i> = 0.001), the SWV was significantly higher after dermal suction than that before dermal suction. Regarding joint stiffness, we found no significant difference between the pre- and post-dermal suction values (<i>partial η</i><sup>2</sup> = 0.093, <i>P</i> > 0.05). These findings suggest that dermal suction increases passive muscle stiffness and has a limited impact on passive joint stiffness.Shota EnomotoTomonari ShibutaniYu AkiharaMiyuki NakataniKazunori YamadaToshiaki OdaMDPI AGarticleelastographyflexibilitymedial gastrocnemiusshear wave velocityultrasoundMedicineRENHealthcare, Vol 9, Iss 1483, p 1483 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	elastography flexibility medial gastrocnemius shear wave velocity ultrasound Medicine R
spellingShingle	elastography flexibility medial gastrocnemius shear wave velocity ultrasound Medicine R Shota Enomoto Tomonari Shibutani Yu Akihara Miyuki Nakatani Kazunori Yamada Toshiaki Oda Acute Effects of Dermal Suction on Passive Muscle and Joint Stiffness
description	The aim of the present study was to examine the acute effects of dermal suction on the passive mechanical properties of specific muscles and joints. Dermal suction was applied to the calves of 24 subjects. Passive plantar flexion torque was measured with the right knee fully extended and the right ankle positioned at 20°, 10°, 0°, and −10° angles, where 0° represents the ankle neutral position, and positive values correspond to the plantar flexion angle. The shear wave velocity (SWV) (m/s) of the medial gastrocnemius was measured in the same position using ultrasound shear wave elastography. The relationship between the joint angle and passive torque at each 10° angle was defined as passive joint stiffness (Nm/°). Passive muscle and joint stiffness were measured immediately before and after the dermal suction protocol. When the ankle joint was positioned at 20° (<i>r</i> = 0.53, <i>P</i> = 0.006), 10° (<i>r</i> = 0.43, <i>P</i> = 0.030), and −10° (<i>r</i> = 0.60, <i>P</i> = 0.001), the SWV was significantly higher after dermal suction than that before dermal suction. Regarding joint stiffness, we found no significant difference between the pre- and post-dermal suction values (<i>partial η</i><sup>2</sup> = 0.093, <i>P</i> > 0.05). These findings suggest that dermal suction increases passive muscle stiffness and has a limited impact on passive joint stiffness.
format	article
author	Shota Enomoto Tomonari Shibutani Yu Akihara Miyuki Nakatani Kazunori Yamada Toshiaki Oda
author_facet	Shota Enomoto Tomonari Shibutani Yu Akihara Miyuki Nakatani Kazunori Yamada Toshiaki Oda
author_sort	Shota Enomoto
title	Acute Effects of Dermal Suction on Passive Muscle and Joint Stiffness
title_short	Acute Effects of Dermal Suction on Passive Muscle and Joint Stiffness
title_full	Acute Effects of Dermal Suction on Passive Muscle and Joint Stiffness
title_fullStr	Acute Effects of Dermal Suction on Passive Muscle and Joint Stiffness
title_full_unstemmed	Acute Effects of Dermal Suction on Passive Muscle and Joint Stiffness
title_sort	acute effects of dermal suction on passive muscle and joint stiffness
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1bff021334ca4cdab5899a3aa68021d5
work_keys_str_mv	AT shotaenomoto acuteeffectsofdermalsuctiononpassivemuscleandjointstiffness AT tomonarishibutani acuteeffectsofdermalsuctiononpassivemuscleandjointstiffness AT yuakihara acuteeffectsofdermalsuctiononpassivemuscleandjointstiffness AT miyukinakatani acuteeffectsofdermalsuctiononpassivemuscleandjointstiffness AT kazunoriyamada acuteeffectsofdermalsuctiononpassivemuscleandjointstiffness AT toshiakioda acuteeffectsofdermalsuctiononpassivemuscleandjointstiffness
_version_	1718412029931290624

Acute Effects of Dermal Suction on Passive Muscle and Joint Stiffness

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