Author: Jawed Y1, Beli E2, March K3, Kaleth A4, Loghmani MT5
Affiliation: <sup>1</sup>Division of Pulmonary, Critical Care, Sleep and Occupational Medicine, School of Medicine, Indiana University, 541 Clinical Dr., CL 260, Indianapolis, IN 46202. <sup>2</sup>Indiana Diabetes Research Center, School of Medicine, Indiana University, 635 Barnhill Dr., MS 2031A, Indianapolis, IN 46202. <sup>3</sup>Center for Regenerative Medicine, College of Medicine, University of Florida, M-108 Health Science Center, P.O. Box 100216, Gainesville, FL 32610. <sup>4</sup>Department of Kinesiology, School of Health and Human Sciences, Indiana University, 901 W. New York Street, Indianapolis, IN 46202. <sup>5</sup>Department of Physical Therapy, School of Health and Human Sciences, Indiana University, 1140 W. Michigan Street, CF320A, Indianapolis, IN 46202.
Conference/Journal: Mil Med.
Date published: 2020 Jan 7
Other: Volume ID: 185 , Issue ID: Supplement_1 , Pages: 404-412 , Special Notes: doi: 10.1093/milmed/usz247. , Word Count: 216
INTRODUCTION: Whole-body vibration training (WBVT) may benefit individuals with difficulty participating in physical exercise. The objective was to explore the effects of WBVT on circulating stem/progenitor cell (CPC) and cytokine levels.
METHODS: Healthy male subjects each performed three activities randomly on separate days: (1) standing platform vibration, (2) repetitive leg squat exercise; and (3) in combination. Pre- and post-activity blood samples were drawn. Cell populations were characterized using flow cytometry. Biomarkers were analyzed using enzyme-linked immunosorbent assays.
RESULTS: CPC levels increased significantly 21% with exercise alone (1465 ± 202-1770 ± 221 cells/mL; P = 0.017) and 33% with vibration alone in younger participants (1918 ± 341-2559 ± 496; P = 0.02). Angiogenic CPCs increased 39% during combined activity in younger (633 ± 128-882 ± 181; P = 0.05). Non-angiogenic CPCs increased 42% with vibration alone in younger (1181 ± 222-1677 ± 342; P = 0.04), but 32% with exercise alone in older participants (801 ± 251-1053 ± 325; P = 0.05). With vibration alone, anti-inflammatory cytokine interleukin-10 increased significantly (P < 0.03), although inflammatory interleukin-6 decreased (P = 0.056); tumor necrosis factor-alpha (P < 0.01) and vascular endothelial growth factor levels increased (P < 0.005), which are synergistically pro-angiogenic.
CONCLUSIONS: WBVT may have positive vascular and anti-inflammatory effects. WBVT could augment or serve as an exercise surrogate in warfighters and others who cannot fully participate in exercise programs, having important implications in military health.
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PMID: 32074302 DOI: 10.1093/milmed/usz247