
Weighted Round Arm
- Zielmuskel
- Deltoid Anterior
- Synergistenmuskeln
- Deltoid Lateral, Pectoralis Major Clavicular Head, Serratus Anterior
- Equipment
- Weighted
- Körperregion
- Shoulders
- Typ
- Strength
The Weighted Round Arm is a shoulder isolation exercise that traces a curved arc from the hip to shoulder height, placing primary demand on the anterior deltoid while recruiting the lateral deltoid, pectoralis major clavicular head, and serratus anterior as synergists. The rounded path — rather than a straight front or lateral raise — distributes load across a broader range of deltoid fibers. It is well suited for building anterior shoulder size and improving scapular stability under load.
Weighted Round Arm: So führst du sie aus
- 1Stand tall with feet hip-width apart, holding a dumbbell or weight plate in one hand at your side, palm facing your thigh.
- 2Brace your core, retract your shoulder blades slightly, and keep a soft bend in the elbow of the working arm throughout the movement.
- 3Begin the arc by sweeping the weight forward and slightly out in a smooth, curved path — think of tracing the edge of a large circle in front of your body.
- 4Continue the arc upward and slightly across the midline so your arm reaches shoulder height, with your palm angled slightly downward at the top.
- 5Pause briefly at the top of the arc, maintaining tension in the anterior deltoid without shrugging the shoulder toward your ear.
- 6Reverse the arc slowly and under control, returning the weight along the same curved path back to the starting position at your side.
- 7Complete all reps on one side before switching to the other arm, or alternate arms as your program dictates.
Technik-Tipps
- Keep the arc smooth and deliberate — rushing the movement turns it into a swing and removes tension from the anterior deltoid.
- Avoid letting the shoulder rise toward your ear at the top; think of actively depressing the scapula as the arm climbs.
- A slight forward lean of the torso is acceptable but keep your spine neutral — do not round your lower back to generate momentum.
- Choose a weight that allows you to complete the full arc with control; the anterior deltoid fatigues quickly when isolated in this pattern.
- Focus on the serratus anterior by allowing the shoulder blade to protract (glide forward around the ribcage) naturally as the arm reaches the top of the arc.
Häufige Fehler
- Using too much weight and swinging: excessive load forces you to use hip and torso momentum, bypassing the anterior deltoid and turning the movement into a ballistic swing that stresses the rotator cuff.
- Cutting the arc short: stopping the movement too early reduces time under tension and fails to train the anterior deltoid through its full range of motion.
- Shrugging the shoulder at the top: elevating the scapula at the peak of the arc shifts load onto the upper trapezius and reduces the isolation of the target muscle.
- Locking the elbow straight: a rigid, fully extended elbow increases lever arm length unnecessarily and places undue stress on the elbow joint — keep a soft bend throughout.
- Deviating from the arc path: drifting the arm too far laterally turns the movement into a lateral raise, reducing anterior deltoid involvement and changing the synergist demand.
Häufig gestellte Fragen
What is the difference between the Weighted Round Arm and a standard front raise?
A standard front raise moves the arm straight forward in a single plane, loading the anterior deltoid with minimal lateral deltoid contribution. The Weighted Round Arm follows a curved arc that also recruits the lateral deltoid and clavicular pec, making it a more complete anterior shoulder exercise.
What equipment can I use for the Weighted Round Arm?
A dumbbell is the most common choice because it allows a natural wrist position throughout the arc. A weight plate or cable attachment can also work, though a cable changes the resistance curve compared to free weights.
How heavy should I go on the Weighted Round Arm?
Start lighter than you would for a front raise — roughly 50–60 percent of your front-raise weight — because the arc path and the serratus anterior stabilization requirement reduce how much load the shoulder can control cleanly. Prioritize a full, controlled arc over adding weight.
Where does the serratus anterior fit in this exercise?
The serratus anterior protracts and upwardly rotates the scapula as your arm climbs through the arc, keeping the shoulder blade flush against the ribcage. Without adequate serratus activation, the shoulder blade may wing and reduce stability at the top of the movement.
Can the Weighted Round Arm replace pressing movements for shoulder development?
No — it is an isolation exercise that complements pressing, not a substitute. Use it to add volume for the anterior deltoid and to train the arc of shoulder motion, pairing it with overhead or incline pressing movements for overall shoulder development.







