{
    "@context": "https://schema.org",
    "@type": "Dataset",
    "name": "M. Biceps Brachii — surface EMG electrode placement",
    "id": "biceps_brachii_l",
    "slug": "biceps-brachii-l",
    "url": {
        "en": "https://emgguide.de/muscle/biceps-brachii-l",
        "de": "https://emgguide.de/de/muscle/biceps-brachii-l",
        "viewer3d": "https://emgguide.de/?muscle=biceps_brachii_l",
        "json": "https://emgguide.de/muscle/biceps-brachii-l.json"
    },
    "names": {
        "latin": "M. Biceps Brachii",
        "en": "Biceps Brachii",
        "de": "Zweiköpfiger Oberarmmuskel"
    },
    "side": "left",
    "region": {
        "key": "UPPER_ARM",
        "en": "Upper Arm",
        "de": "Oberarm"
    },
    "placementStandard": "SENIAM (Hermens et al. 2000)",
    "source": {
        "url": "http://seniam.org/bicepsbrachii.html",
        "short": "SENIAM (Hermens 2000)",
        "citation": "Hermens HJ, Freriks B, Disselhorst-Klug C, Rau G. Development of recommendations for SEMG sensors and sensor placement procedures. J Electromyogr Kinesiol. 2000;10(5):361-74."
    },
    "electrode": {
        "position": {
            "en": "1/3 on line between cubital fossa and medial acromion (measured from the cubital fossa)",
            "de": "1/3 auf Linie zwischen Fossa cubitalis und medialem Acromion (von der Fossa cubitalis aus)"
        },
        "orientation": {
            "en": "Parallel to line cubital fossa–acromion",
            "de": "Parallel zur Linie Fossa cubitalis–Acromion"
        },
        "sensorRules": "bipolar Ag/AgCl, ≤ 10 mm conductive diameter, 20 mm inter-electrode distance, parallel to fibres, reference electrode on bone (SENIAM)"
    },
    "landmarks": {
        "rule": "electrode at fraction t of the line from a to b",
        "a": {
            "id": "cubital_fossa",
            "en": "Cubital fossa",
            "de": "Fossa cubitalis",
            "model_xyz_m": null
        },
        "b": {
            "id": "medial_acromion",
            "en": "Medial acromion",
            "de": "Mediales Akromion",
            "model_xyz_m": null
        },
        "t": 0.333299999999999985167420391007908619940280914306640625,
        "extra": null,
        "note": null,
        "coordinates": "model space of the 3D viewer (metres, y up); for orientation only, not body measurements"
    },
    "anatomy": {
        "function": {
            "en": "Elbow flexion, forearm supination, shoulder anteversion",
            "de": "Flexion im Ellenbogen, Supination des Unterarms, Anteversion im Schultergelenk"
        },
        "origin": {
            "en": "Supraglenoid tubercle (long head), coracoid process (short head)",
            "de": "Tuberculum supraglenoidale (Caput longum), Processus coracoideus (Caput breve)"
        },
        "insertion": {
            "en": "Radial tuberosity, bicipital aponeurosis",
            "de": "Tuberositas radii, Aponeurosis bicipitalis"
        },
        "innervation": {
            "en": "Musculocutaneous nerve (lateral cord), C5–C6",
            "de": "N. musculocutaneus (Fasciculus lateralis), C5–C6"
        }
    },
    "testMovement": {
        "en": "Elbow flexion against resistance with supinated forearm",
        "de": "Ellenbogenflexion gegen Widerstand bei supiniertem Unterarm"
    },
    "placementNotes": {
        "source": "Criswell E. Cram's Introduction to Surface Electromyography. 2nd ed. Jones & Bartlett; 2011, p. 315",
        "site": "Biceps–Brachium",
        "placementType": "specific",
        "signalCheck": {
            "de": "Unterarm beugen; Widerstand verstärkt das Signal.",
            "en": "Flex the forearm; resistance augments the signal."
        },
        "crosstalk": {
            "de": [
                "Brachialis",
                "Deltoideus",
                "Triceps brachii",
                "Unterarm-Extensoren"
            ],
            "en": [
                "brachialis",
                "deltoids",
                "triceps brachii",
                "forearm extensors"
            ]
        },
        "artifacts": null
    },
    "mvcTest": {
        "source": "Konrad P. The ABC of EMG. Noraxon; 2005, p. 31",
        "group": "biceps",
        "en": {
            "position": "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.",
            "control": "Use the latissimus dorsi test as a control exercise.",
            "note": "Without elbow and trunk fixation the effort leaks into the shoulder and the biceps never reaches its maximum."
        },
        "de": {
            "position": "Sitzend oder kniend vor einer Bank, Ellbogen etwa 90°, Unterarm supiniert.",
            "fixation": "Sehr stabile Fixierung von Ellbogen und Rumpf; der Oberarm bleibt senkrecht am Körper.",
            "resistance": "Starrer Widerstand unter dem Handgelenk (Gurt zum Boden, Stange oder manuell), Ellbogenflexion dagegen.",
            "control": "Als Kontrollübung den Latissimus-dorsi-Test mitlaufen lassen.",
            "note": "Ohne Ellbogen- und Rumpffixierung weicht die Kraft in die Schulter aus, der Biceps erreicht sein Maximum nicht."
        }
    },
    "measurability": "surface EMG",
    "license": "Free to cite with attribution to emgguide.de. Electrode placements based on SENIAM (Hermens et al. 2000) and the cited literature; not an official SENIAM product; not a substitute for medical advice.",
    "publisher": {
        "name": "EMG Guide (menios GmbH)",
        "url": "https://emgguide.de/"
    },
    "dateModified": "2026-09-24"
}