Dumbbell Lying Supination
Muscles worked
Instructions
- 1Lie sideways on a flat bench with one arm holding a dumbbell and the other hand on top of the bench folded so that you can rest your head on it.
- 2Bend the elbows of the arm holding the dumbbell so that it creates a 90-degree angle between the upper arm and the forearm.
- 3Now raise the upper arm so that the forearm is parallel to the floor and perpendicular to your torso (Tip: So the forearm will be directly in front of you). The upper arm will be stationary by your torso and should be parallel to the floor (aligned with your torso at all times). This will be your starting position.
- 4As you breathe out, externally rotate your forearm so that the dumbbell is lifted up in a semicircle motion as you maintain the 90 degree angle bend between the upper arms and the forearm. You will continue this external rotation until the forearm is perpendicular to the floor and the torso pointing towards the ceiling. At this point you will hold the contraction for a second.
- 5As you breathe in, slowly go back to the starting position.
- 6Repeat for the recommended amount of repetitions and then switch to the other arm.
table_chartRecommended sets and reps
These ranges vary depending on your training goal — adjust the load accordingly.
| Goal | Sets | Reps | Rest |
|---|---|---|---|
| boltStrength | 3–4 | 6–8 | 2–3 min |
| fitness_centerHypertrophy | 3–4 | 10–15 | 60 s |
| timerEndurance | 2–3 | 15–20 | 30–45 s |
About Dumbbell Lying Supination
The dumbbell lying supination, performed lying on your side, is the mirror movement of pronation: it isolates the forearm's supinator muscles, which rotate the wrist outward. Lying on your side with the elbow bent at 90 degrees and the upper arm still against the torso, you rotate the forearm through a semicircle to raise the dumbbell until it points toward the ceiling, then lower it back under control. Like its pronation counterpart, it's a technical, lightly loaded exercise that targets a movement pattern often overlooked but essential for elbow health and rotational performance.
check_circleBenefits
- check_circleSpecifically strengthens the forearm's supinator muscles
- check_circleBalances out the pronator work for well-rounded forearms
- check_circleGood for elbow health and rotational movements
lightbulbExecution tips
- lightbulbKeep the upper arm completely still against your torso
- lightbulbUse a light dumbbell and prioritize control
- lightbulbRotate the forearm until it points toward the ceiling
- lightbulbLower slowly to stay under tension
warningCommon mistakes
- warningLoading too heavy and losing control of the rotation
- warningLetting the upper arm move during the movement
- warningRushing without full range of motion
- warningUsing the shoulder to compensate
helpFrequently asked questions
Should I do pronation and supination in the same session?expand_more
That's a good idea — the two movements complement each other for balanced forearms and a healthy elbow.
Why lie on your side for this exercise?expand_more
This position lets the forearm move through a full semicircle while keeping the upper arm stable against the torso.
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