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International Journal of Vascular Medicine
Volume 2013, Article ID 948769, 6 pages
Clinical Study

Efficacy of Micromobile Foot Compression Device in Increasing Lower Limb Venous Blood Flow

1Medical Research Institute of New Zealand, Private Bag Box 7902, Wellington 6242, New Zealand
2Pacific Radiology Ltd., Wellington 5010, New Zealand
3Capital & Coast District Health Board, Wellington 6242, New Zealand
4University of Otago Wellington, Wellington 6242, New Zealand

Received 30 April 2013; Accepted 24 September 2013

Academic Editor: Robert M. Schainfeld

Copyright © 2013 Thomas Charles et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. A novel, micromobile foot compression device (MMC) has been developed to reduce the risk of venous thromboembolism associated with prolonged seated immobility. Objective. To compare the efficacy of the MMC with graduated compression stockings in augmenting lower limb venous blood flow. Patients/Methods. Twenty participants were randomised to wear the MMC or a graduated compression stocking (GCS) on either the left or right leg while seated. Doppler ultrasound measurements of popliteal vein blood flow and leg circumference measurements were made and minutes (baseline) and +30 and +60 minutes following application of the interventions. The primary outcome variable was peak systolic velocity. A mixed linear model was used, with covariates including baseline measurement, randomised side, time, and a time by interaction term. Results. The mean popliteal vein peak systolic velocity at 60 minutes with the MMC was 20.1 cm/s which was significantly higher than with the GCS (difference 14.1 cm/s 95% CI 12.1–16.2), representing a 3.8-fold increase from baseline. Conclusion. The MMC resulted in a marked increase in lower limb venous blood flow which suggests that it may have efficacy in reducing the risk of venous thromboembolism associated with prolonged seated immobility, such as long distance air travel.