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Blood flow waveforms from all interventions. Representative waveform from (A) baseline, (B) voluntary contraction, (C) GekoTM, and (D) NUI Galway device. The measurement window for all test conditions included 1 s before stimulation and 11 s of blood flow post stimulation onset. Peak velocity was measured off the crossing point of the blood flow waveform and the horizontal dashed line in green. The TAMEAN is plotted as a solid blue line over the course of the measurement.
