NCT02532556|CompletedResults
Electrical Stimulation of the Muscle Pumps of the Leg
Muscle Pump
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Muscle Pump
Sponsor study identifier
interventional
12
0 countries
N/A
Study Start
May 2015
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
August 2015
Actual (reported)Study Completion
August 2015
Actual (reported)The most efficient way of electrically stimulating the calf muscles has not been identified. The investigators aim to investigate this using a matrix of electrical parameters, and measuring the outcome with vascular ultrasound of the leg.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
August 2015
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
May 2015
Date type not reportedThis date has not been verified as actual or estimated.
August 2015
Actual (reported)August 2015
Actual (reported)August 10, 2015
Actual (reported)August 25, 2015
Actual (reported)November 27, 2020
Actual (reported)Venous Haemodynamic Measurements (Volume Flow Rate)
Measurement by ultrasound, in right femoral vein. Flow rate (ml/min).
Baseline compared to that after 10-mins stimulation (2-mins to take measurements)
Venous Haemodynamic Measurements (Time Averaged Maximum Velocity)
Measurement by ultrasound, in right femoral vein. Time averaged maximum velocity (cm/s).
Baseline compared to that after 10-mins stimulation (2-mins to take measurements)
Pain Grading on Stimulation
During stimulation (10-mins each muscle)
Stimulation of muscle in this order: vastus medials, rectus femoris, vastus lateralis, tibialis anterior, peroneus longus, medial head gastrocnemius, lateral head gastrocnemius
Stimulation of muscle in this order: rectus femoris, vastus lateralis, tibialis anterior, peroneus longus, medial head gastrocnemius, lateral head gastrocnemius, vastus medials
Stimulation with Digitimer (DS7A HV, Digitimer Ltd, UK) over motor point of muscle in protocol. 1Hz, pulse duration 1ms, maximum compliance voltage 200V. Current set to twice motor threshold
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Evans DR, Williams KJ, Strutton PH, Davies AH. The comparative hemodynamic efficacy of lower limb muscles using transcutaneous electrical stimulation. J Vasc Surg Venous Lymphat Disord. 2016 Apr;4(2):206-14. doi: 10.1016/j.jvsv.2015.10.009. Epub 2016 Jan 12.
Alun Davies
Imperial College London
12 participants (actual enrollment reported by the registry).
First Submitted
August 10, 2015
First Posted
August 25, 2015
Study Start
May 2015
Date type not reportedThis date has not been verified as actual or estimated.
Stimulation of muscle in this order: vastus lateralis, tibialis anterior, peroneus longus, medial head gastrocnemius, lateral head gastrocnemius, vastus medials, rectus femoris
Stimulation of muscle in this order: tibialis anterior, peroneus longus, and the medial head gastrocnemius, lateral head gastrocnemius, vastus medials, rectus femoris, vastus lateralis
Stimulation of muscle in this order: peroneus longus, medial head gastrocnemius, lateral head gastrocnemius, vastus medials, rectus femoris, vastus lateralis, tibialis anterior
Stimulation of muscle in this order: medial head gastrocnemius, lateral head gastrocnemius, vastus medials, rectus femoris, vastus lateralis, tibialis anterior, peroneus longus
Stimulation of muscle in this order: lateral head gastrocnemius, vastus medials, rectus femoris, vastus lateralis, tibialis anterior, peroneus longus, medial head gastrocnemius,
Contact the study team to confirm eligibility.
Primary Completion
August 2015
Actual (reported)Study Completion
August 2015
Actual (reported)Last Updated
November 27, 2020
Results First Posted
November 27, 2020
Record last verified: 2020-11
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Source: ClinicalTrials.gov.
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