Dumbbell Lying Supine Biceps Curl
- Músculo objetivo
- —
- Equipamiento
- Dumbbell
- Parte del cuerpo
- Upper Arms
- Tipo
- Strength
The dumbbell lying supine biceps curl is an upper-arm isolation exercise that targets the biceps and the forearm flexors. You lie face-up on a flat bench with your arms hanging down at your sides, so the dumbbells start below the bench — this position lengthens the biceps at the bottom for a deeper stretch and a strict, momentum-free curl.
Cómo hacer el Dumbbell Lying Supine Biceps Curl
- 1Lie supine (face-up) on a flat bench holding a dumbbell in each hand, with enough of your shoulders near the edge that your arms can hang straight down toward the floor.
- 2Let your arms hang fully extended at your sides so the dumbbells rest below the level of the bench, palms facing forward.
- 3Brace your core and keep your upper arms still, pointing straight down toward the floor throughout the set.
- 4Curl both dumbbells up by bending only at the elbows, squeezing the biceps as you raise the weights.
- 5Continue until your forearms are near vertical and the biceps are fully contracted, keeping your wrists firm and straight.
- 6Pause briefly at the top without letting your elbows drift forward.
- 7Lower the dumbbells under control back to the full stretch below the bench, resisting the weight on the way down.
- 8Complete your reps, then sit up carefully and set the dumbbells down.
Consejos de técnica
- Keep your upper arms fixed and pointing straight down — only your forearms should move, which keeps the work on the biceps.
- Lower slowly to take advantage of the deep stretch at the bottom; the supine position is what makes this curl different from a standing version.
- Keep your wrists neutral and firm rather than curling them inward, so the load stays on the biceps and forearm flexors.
- Start lighter than your standing curl weight — the stretched bottom position and strict form make each rep harder.
- Position yourself so the dumbbells clear the bench and floor at full extension, and keep the path of each dumbbell clear before you start.
Errores comunes
- Swinging the dumbbells or using shoulder movement to start the rep, which shifts work off the biceps and reduces the benefit of the strict position.
- Letting the elbows drift forward or up at the top, which shortens the range and lets the front shoulders take over.
- Cutting the bottom short instead of letting the arms hang fully, which wastes the stretch this exercise is designed to provide.
- Curling the wrists toward you instead of keeping them straight, which strains the wrists and takes tension off the biceps.
- Going too heavy and dropping the weights quickly, losing the controlled lowering phase that builds the most tension.
Preguntas frecuentes
What muscles does the dumbbell lying supine biceps curl work?
It targets the biceps (biceps brachii) as the prime mover, with the forearm flexors assisting to bend the elbow and hold the dumbbells.
Why do this curl lying down instead of standing?
Lying supine lets your arms hang straight down so the dumbbells sit below the bench, lengthening the biceps at the bottom. This adds stretch and removes the leg and torso swing that makes standing curls easy to cheat.
Is this exercise good for beginners?
Yes, but start light. The strict, stretched position makes each rep harder than a standing curl, so choose a weight you can curl smoothly through a full range with no swinging.
How many sets and reps should I do?
For arm growth, 3–4 sets of 10–15 controlled reps works well. Use a weight that lets you reach the full stretch at the bottom and a full squeeze at the top on every rep.
What's a good alternative to this exercise?
The standard standing dumbbell curl or an incline dumbbell curl are close alternatives. An incline curl also keeps the arms behind the torso for extra stretch on the biceps.
