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. Brachioradialis Brachioradialis · right · Forearm Literature

Position: On the muscle belly slightly distal to the innervation zone in the proximal third (line lateral epicondyle – radial styloid process), on the longitudinal midline; avoid the most proximal part of the belly
Orientation: Parallel to the radius
Signal check: Flex the forearm.
Crosstalk from: extensor carpi radialis longus/brevis — a major issue at this site per Criswell
MVC test: Seated or kneeling in front of a bench, elbow at about 90°, forearm supinated.
Fixation: Very stable fixation of elbow and trunk; the upper arm stays vertical at the side.
Resistance: Rigid resistance under the wrist (strap to the floor, bar or manual), elbow flexion against it.

Skin prepared ImpedancekΩ Signal check ok MVC peakµV Note

Sources: Merlo et al. 2021 · Signal check & crosstalk: Criswell 2011 · MVC test & set-up: Konrad 2005
Live on the 3D model: emgguide.de/?muscle=brachioradialis_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