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 Ascendens Lower Trapezius · right · Shoulder SENIAM

Position: 2/3 on line from trigonum spinae to T8
Orientation: Along the line T8–acromion
Signal check: Abduct the arms; retract the shoulder back and down at 45°.
Crosstalk from: middle trapezius · rhomboids · erector spinae
MVC test: Simulated pull-up: elbows at about 90° flexion, check a frontal and a lateral arm position.
Fixation: Fixed bar or machine; trunk stabilised.
Resistance: Pulling against the fixed bar.

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_ascendens_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