EMG session sheet

Electrode positions, signal check and MVC test on one sheet

emgguide.de
26.10.2026

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. Gracilis Gracilis · right · Hip Literature

Position: Medial thigh, approx. 4 cm distal to the pubis; palpate the area during isometric adduction. Note: hip-adductor site per Criswell — cannot be separated from the adductor longus at the surface
Orientation: Oblique along the muscle course, 2 cm inter-electrode distance; avoid the anterior midline of the thigh (crosstalk from rectus femoris)
Signal check: Press the knees together (adduction); walking.
Crosstalk from: adductor longus (inseparable at the surface) · rectus femoris · vastus medialis · adductor magnus
MVC test: Supine or seated with flexed legs; a big, stiff roll cushion is pressed between the knees.
Fixation: The cushion itself provides the rigid resistance; pelvis stable.
Resistance: Isometric adduction against the cushion.

Skin prepared ImpedancekΩ Signal check ok MVC peakµV Note

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