EMG session sheet

Electrode positions, signal check and MVC test on one sheet

emgguide.de
25.10.2026

Date

Subject / ID

Examiner

Device · sampling rate

Recording set-up per Konrad 2005: Inter-electrode distance 2 cm (centre to centre) · Skin impedance: aim < 10 kΩ, up to 30 kΩ acceptable, above 50 kΩ prepare again · Band-pass 10–500 Hz · Sampling ≥ 1000 Hz · no notch filter

S1 M. Vastus Medialis Vastus Medialis · left · Thigh Anterior SENIAM

Position: 80% on line from ASIS to the joint space in front of the anterior border of the medial ligament
Orientation: Almost perpendicular to that line
Signal check: Seated: extend the knee; standing: partial squat.
Crosstalk from: rectus femoris · adductor longus · adductor magnus
MVC test: Seated, single-leg knee extension held between 90° and 70° knee flexion.
Fixation: Thigh and pelvis fixed on the seat; a strap at the ankle holds the knee angle.
Resistance: Fixed strap at the ankle, extension against it.

Skin prepared ImpedancekΩ Signal check ok MVC peakµV Note

Sources: SENIAM (Hermens 2000) · Signal check & crosstalk: Criswell 2011 · MVC test & set-up: Konrad 2005
Live on the 3D model: emgguide.de/?muscle=vastus_medialis_l
Visualise the activation live: easyEMG · Educational reference, not a medical device. For use by trained persons following the manufacturer's instructions. emgguide.de/disclaimer