Acute Effects of Whole-Body Vibration on Peripheral Blood Flow, Vibrotactile Perception and Balance in Older Adults

M. H. Mahbub, Ryosuke Hase, Natsu Yamaguchi, Keiichi Hiroshige, Noriaki Harada, A. N. M. Nurul Haque Bhuiyan and Tsuyoshi Tanabe
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M. H. Mahbub: Deaprtment of Public Health and Preventive Medicine, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi 755-8505, Japan
Ryosuke Hase: Deaprtment of Public Health and Preventive Medicine, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi 755-8505, Japan
Natsu Yamaguchi: Deaprtment of Public Health and Preventive Medicine, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi 755-8505, Japan
Keiichi Hiroshige: Department of Physical Therapy, Kyushu Nutrition Welfare University, Kitakyushu, Fukuoka 800-0298, Japan
Noriaki Harada: Department of Nursing, Junshin Gakuen University, Graduate School of Health Sciences, Fukuoka 815-8510, Japan
A. N. M. Nurul Haque Bhuiyan: Department of Neonatology, Shaheed Sayed Nazrul Islam Medical College, Kishoreganj 2300, Bangladesh
Tsuyoshi Tanabe: Deaprtment of Public Health and Preventive Medicine, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi 755-8505, Japan

IJERPH, 2020, vol. 17, issue 3, 1-15

Abstract: Background: Non-invasive application of whole-body vibration (WBV) has the potential for inducing improvements in impaired peripheral circulation, cutaneous sensation and balance among older adults. However, relevant studies have frequently applied high magnitudes of vibration and show conflicting and inconclusive results. Therefore, we attempted to ascertain the acute responses in those parameters from exposure of thirty older subjects to WBV of three different magnitudes, defined according to ISO 2631-1 (1997). Methods: Each subject randomly underwent four sessions of intervention (three bouts of 1 min exposure with 1 min between-bout rests): WBV at 15, 20, or 25 Hz with a peak-to-peak displacement of 4 mm, or control condition. Results: Both during and after intervention, dorsal foot skin blood flow increased significantly under 20 and 25 Hz exposure conditions with greater responses under the latter condition, the magnitude of which slightly exceeded the recommended value. Plantar vibrotactile perception showed significant increases after WBV exposure with overall greater responses under higher frequencies of vibration. In contrast, no WBV-induced change in balance was observed. Conclusions: WBV at 20 Hz with a magnitude within the recommended limit can be effective in inducing enhancements in peripheral blood flow; however, the same magnitude of vibration seems insufficient in improving balance among older adults.

Keywords: whole-body vibration; skin blood flow; vibrotactile perception; balance; older adults (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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