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Broderick, BJ,O'Briain, DE,Breen, PP,Kearns, SR,OLaighin, G
2010
May
Medical Engineering & Physics
A pilot evaluation of a neuromuscular electrical stimulation (NMES) based methodology for the prevention of venous stasis during bed rest
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Optional Fields
NMES Deep vein thrombosis DVT Venous thromboembolism Bed rest Calf muscle pump Electrical stimulation Lower limb hemodynamics Venous stasis INTERMITTENT PNEUMATIC COMPRESSION DEEP-VEIN THROMBOSIS BLOOD-FLOW THROMBOEMBOLIC DISEASE PULMONARY-EMBOLISM MUSCLE FATIGUE LOWER-LIMB DEVICE PROPHYLAXIS FOOT
32
349
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Bed rest poses an increased risk factor for a potentially fatal venous thromboembolism (VTE). Lack of activation of the calf muscle pump during this resting period gives rise to venous stasis which may lead to deep vein thrombosis (DVT) development. Our aim was to investigate the effects that 4 h of bed rest have on the lower limb hemodynamics of healthy subjects and to what extent electrically elicited contractions of the calf muscles can alleviate these effects. Outcome variables included popliteal vein blood flow and heart rate. Primary results indicated that the resting group experienced a significant decline in popliteal venous blood flow of 47% with 13% decrease in heart rate. The stimulated groups maintained a significantly higher venous blood flow and heart rate. Volume flow in the contralateral limb remained constant throughout the study and was comparable to that of the stimulated limb's recovery flow. The results suggest that even short periods of bed rest can significantly reduce lower limb blood flow which could have implications for DVT development. Electrically elicited calf muscle contractions significantly improve lower limb blood flow and can alleviate some debilitating effects of bed rest. (C) 2010 IPEM. Published by Elsevier Ltd. All rights reserved.
DOI 10.1016/j.medengphy.2010.01.006
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