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. Trapezius Pars Transversa Middle Trapezius · left · Shoulder SENIAM

Position: 50% between medial scapular border and T3
Orientation: Along the line T5–acromion
Signal check: Retract the scapulae; abduct the arms through the full range.
Crosstalk from: rhomboids (hard to separate from the signal per Criswell) · upper trapezius · levator scapulae · erector spinae
MVC test: Prone on a bench, arms hanging, or seated at a rowing machine / cable.
Fixation: Seated: good chest support; prone: the bench itself.
Resistance: Barbell or bilateral manual resistance (prone) or cable/machine (seated); horizontal abduction 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=trapezius_transversus_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