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- Shota Enomoto
- Center for Liberal Arts, Meiji Gakuin University, Yokohama 244-8539, Japan
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- Tomonari Shibutani
- Institute of Sports Sciences, International Pacific University, Okayama 709-0863, Japan
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- Yu Akihara
- Graduate School of Education, Hyogo University of Teacher Education, Kato 673-1494, Japan
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- Miyuki Nakatani
- Center for Liberal Arts, Meiji Gakuin University, Yokohama 244-8539, Japan
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- Kazunori Yamada
- Department of Community Child Studies, Niijimagakuen Junior College, Takasaki 370-0068, Japan
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- Toshiaki Oda
- Graduate School of Education, Hyogo University of Teacher Education, Kato 673-1494, Japan
説明
<jats:p>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° (r = 0.53, P = 0.006), 10° (r = 0.43, P = 0.030), and −10° (r = 0.60, P = 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 (partial η2 = 0.093, P > 0.05). These findings suggest that dermal suction increases passive muscle stiffness and has a limited impact on passive joint stiffness.</jats:p>
収録刊行物
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- Healthcare
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Healthcare 9 (11), 1483-, 2021-10-31
MDPI AG