NCT02109796.

Trial name or title	A controlled, randomised study evaluating the immediate effect of one tDCS session on quadriceps strength in hemiparetic patients
Methods	Randomised cross‐over trial
Participants	Estimated enrolment: 30 Inclusion criteria: written informed consent; stroke > 6 months prior to enrolment; hemiparesis; ability to walk with or without technical assistance; following rehabilitation program for lower limbs Exclusion criteria: patient with bilateral brain lesion; cerebellar syndrome; apraxia; aphasia; previous orthopedic surgery in paretic lower limb (< 6 months); usual tDCS contraindications; pregnancy
Interventions	No detailed information provided except the following quotation: "We test a new electrode configuration: a anodal stimulation opposite to the cortical representation area of the injured hemisphere and a simultaneous stimulation opposite to the homonyme the cortical representation area of the healthy hemisphere. We hypothesis that one session of tDCS with this electrode configuration allow to improve paretic quadriceps strength in hemiparetic patients after stroke."
Outcomes	Outcomes will be recorded at baseline and 2 hours after the end of intervention Primary outcome measure Maximum voluntary strength of knee extensors Secondary outcome measures Resistive peak torque during passive knee flexion Angle related to the resistive peak torque generation of the knee extensors Amplitude of the interpolation twitch EMG activation of the knee flexors and extensors during the strength evaluations (active and passive) Functional evaluation of the gait performance and balance
Starting date	February 2015
Contact information	Roche Nicolas, MD PH Raymond Poincare Hospital Garches, France, 92380
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