Sit tall with legs extended, arms holding straps at shoulder height.
Start with elbows bent, hands near chest, palms facing inward.
Open elbows wide, rotating shoulders externally while keeping chest lifted.
Return with control, maintaining upright posture and steady strap tension.
Guía de Ejercicio Préparations au tirage horizontal assis — coudes écartés - Entrenamiento de Traps (milieu du dos) | MuscleWiki