{
    "@context": "https://schema.org",
    "@type": "Dataset",
    "name": "M. Teres Major — surface EMG electrode placement",
    "id": "teres_major_l",
    "slug": "teres-major-l",
    "url": {
        "en": "https://emgguide.de/muscle/teres-major-l",
        "de": "https://emgguide.de/de/muscle/teres-major-l",
        "viewer3d": "https://emgguide.de/?muscle=teres_major_l",
        "json": "https://emgguide.de/muscle/teres-major-l.json"
    },
    "names": {
        "latin": "M. Teres Major",
        "en": "Teres Major",
        "de": "Großer Rundmuskel"
    },
    "side": "left",
    "region": {
        "key": "SHOULDER",
        "en": "Shoulder",
        "de": "Schulter"
    },
    "placementStandard": "none: no documented surface EMG electrode position for this muscle (no SENIAM recommendation, no peer-reviewed source)",
    "source": null,
    "electrode": {
        "position": {
            "en": null,
            "de": null
        },
        "orientation": {
            "en": null,
            "de": null
        },
        "sensorRules": null
    },
    "landmarks": null,
    "anatomy": {
        "function": {
            "en": "Retroversion, adduction and internal rotation at shoulder joint",
            "de": "Retroversion, Adduktion und Innenrotation im Schultergelenk"
        },
        "origin": {
            "en": "Inferior angle of scapula (dorsal surface)",
            "de": "Angulus inferior der Scapula (dorsale Fläche)"
        },
        "insertion": {
            "en": "Crest of lesser tubercle of humerus",
            "de": "Crista tuberculi minoris des Humerus"
        },
        "innervation": {
            "en": "Lower subscapular nerve (posterior cord), C5–C6",
            "de": "N. subscapularis inferior (Fasciculus posterior), C5–C6"
        }
    },
    "testMovement": {
        "en": "Internal rotation of arm against resistance with adducted arm",
        "de": "Innenrotation des Armes gegen Widerstand bei adduziertem Arm"
    },
    "placementNotes": null,
    "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": "no documented surface EMG electrode position",
    "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"
}