Whole-body vibration dosage alters leg blood flow

Journal article


Lythgo, Noel Desmond, Eser, Prisca, De Groot, Patricia and Galea, Mary. (2009). Whole-body vibration dosage alters leg blood flow. Clinical Physiology and Functional Imaging. 29(1), pp. 53 - 59. https://doi.org/10.1111/j.1475-097X.2008.00834.x
AuthorsLythgo, Noel Desmond, Eser, Prisca, De Groot, Patricia and Galea, Mary
Abstract

The effect of whole-body vibration dosage on leg blood flow was investigated. Nine healthy young adult males completed a set of 14 random vibration and non-vibration exercise bouts whilst squatting on a Galileo 900 plate. Six vibration frequencies ranging from 5 to 30 Hz (5 Hz increments) were used in combination with a 2·5 mm and 4·5 mm amplitude to produce twelve 1-min vibration bouts. Subjects also completed two 1-min bouts where no vibration was applied. Systolic and diastolic diameters of the common femoral artery and blood cell velocity were measured by an echo Doppler ultrasound in a standing or rest condition prior to the bouts and during and after each bout. Repeated measures MANOVAs were used in the statistical analysis. Compared with the standing condition, the exercise bouts produced a four-fold increase in mean blood cell velocity (P < 0·001) and a two-fold increase in peak blood cell velocity (P < 0·001). Compared to the non-vibration bouts, frequencies of 10–30 Hz increased mean blood cell velocity by approximately 33% (P < 0·01) whereas 20–30 Hz increased peak blood cell velocity by approximately 27% (P < 0·01). Amplitude was additive to frequency but only achieved significance at 30 Hz (P < 0·05). Compared with the standing condition, squatting alone produced significant increases in mean and peak blood cell velocity (P < 0·001). The results show leg blood flow increased during the squat or non-vibration bouts and systematically increased with frequency in the vibration bouts.

Keywordsblood flow response; common femoral artery; doppler ultrasound; isometric squat; vibration
Year2009
JournalClinical Physiology and Functional Imaging
Journal citation29 (1), pp. 53 - 59
PublisherBlackwell Publishers Inc
ISSN1475-0961
Digital Object Identifier (DOI)https://doi.org/10.1111/j.1475-097X.2008.00834.x
Page range53 - 59
Research GroupSports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre
Place of publicationUnited Kingdom
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