{
    "@context": "https://schema.org",
    "@type": "Dataset",
    "name": "M. Latissimus Dorsi — surface EMG electrode placement",
    "id": "latissimus_dorsi_l",
    "slug": "latissimus-dorsi-l",
    "url": {
        "en": "https://emgguide.de/muscle/latissimus-dorsi-l",
        "de": "https://emgguide.de/de/muscle/latissimus-dorsi-l",
        "viewer3d": "https://emgguide.de/?muscle=latissimus_dorsi_l",
        "json": "https://emgguide.de/muscle/latissimus-dorsi-l.json"
    },
    "names": {
        "latin": "M. Latissimus Dorsi",
        "en": "Latissimus Dorsi",
        "de": "Breiter Rückenmuskel"
    },
    "side": "left",
    "region": {
        "key": "SHOULDER",
        "en": "Shoulder",
        "de": "Schulter"
    },
    "placementStandard": "adapted from peer-reviewed literature (see source)",
    "source": {
        "url": "https://pubmed.ncbi.nlm.nih.gov/18528827/",
        "short": "Boettcher et al. 2008",
        "citation": "Boettcher CE, Ginn KA, Cathers I. Standard maximum isometric voluntary contraction tests for normalizing shoulder muscle EMG. J Orthop Res. 2008;26(12):1591-1597."
    },
    "electrode": {
        "position": {
            "en": "4cm below inferior angle of scapula, halfway to spine",
            "de": "4cm unter Angulus inferior scapulae, halbwegs zur Wirbelsäule"
        },
        "orientation": {
            "en": "Oblique, toward inferior angle–humerus",
            "de": "Schräg, Richtung Angulus inferior–Humerus"
        },
        "sensorRules": "bipolar Ag/AgCl, ≤ 10 mm conductive diameter, 20 mm inter-electrode distance, parallel to fibres, reference electrode on bone (SENIAM)"
    },
    "landmarks": null,
    "anatomy": {
        "function": {
            "en": "Retroversion, adduction, internal rotation of arm, accessory respiratory muscle (expiration)",
            "de": "Retroversion, Adduktion, Innenrotation des Armes, Atemhilfsmuskel (Exspiration)"
        },
        "origin": {
            "en": "Proc. spinosi Th7–L5, thoracolumbar fascia, iliac crest, 10th–12th rib",
            "de": "Proc. spinosi Th7–L5, Fascia thoracolumbalis, Crista iliaca, 10.–12. Rippe"
        },
        "insertion": {
            "en": "Crest of lesser tubercle of humerus",
            "de": "Crista tuberculi minoris des Humerus"
        },
        "innervation": {
            "en": "Thoracodorsal nerve (posterior cord), C6–C8",
            "de": "N. thoracodorsalis (Fasciculus posterior), C6–C8"
        }
    },
    "testMovement": {
        "en": "Pull arm from elevation downward-backward against resistance (pull-up motion)",
        "de": "Arm aus Elevation nach unten-hinten ziehen gegen Widerstand (Klimmzugbewegung)"
    },
    "placementNotes": {
        "source": "Criswell E. Cram's Introduction to Surface Electromyography. 2nd ed. Jones & Bartlett; 2011, p. 341",
        "site": "Latissimus Dorsi",
        "placementType": "specific",
        "signalCheck": {
            "de": "Arm strecken, adduzieren oder innenrotieren.",
            "en": "Extend, adduct or medially rotate the arm."
        },
        "crosstalk": {
            "de": [
                "Teres major",
                "unterer Trapezius"
            ],
            "en": [
                "teres major",
                "lower trapezius"
            ]
        },
        "artifacts": {
            "de": "EKG.",
            "en": "ECG."
        }
    },
    "mvcTest": {
        "source": "Konrad P. The ABC of EMG. Noraxon; 2005, p. 31",
        "group": "pull_up",
        "en": {
            "position": "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.",
            "control": "The same set-up may also produce maxima for the biceps and the lower trapezius.",
            "note": "The pull-up simulation produces the highest latissimus innervation; the lower trapezius and teres major share the set-up."
        },
        "de": {
            "position": "Simulierter Klimmzug: Ellbogen etwa 90° gebeugt, frontale und seitliche Armposition prüfen.",
            "fixation": "Fixierte Stange oder Gerät; Rumpf stabilisiert.",
            "resistance": "Zug gegen die fixierte Stange.",
            "control": "Derselbe Aufbau kann auch Maxima für Biceps und unteren Trapezius liefern.",
            "note": "Die Klimmzug-Simulation erzeugt die höchste Latissimus-Innervation; unterer Trapezius und Teres major teilen sich den Aufbau."
        }
    },
    "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": "2026-10-21"
}