Strength Training · Bodybuilding
Dumbbell Pronation and Supination
Dumbbell pronation and supination trains your forearm rotators by turning your palm up and down against light resistance while your forearm stays supported.
- Beginner
- Isolation
- Low injury risk
- Rest 1 min
How to do it
- Sit on a bench with your feet flat on the floor.
- Rest your forearm on your thigh with your elbow bent about 90 degrees and your hand beyond your knee.
- Grip a very light dumbbell near one end of its handle with your thumb pointing up.
- Rotate your forearm to turn your palm upward as far as comfortable.
- Rotate your forearm in the opposite direction to turn your palm downward as far as comfortable.
- Return to the thumb-up position to finish the repetition.
Form cues
- Keep your wrist straight.
- Keep your shoulder quiet.
- Turn slowly in both directions.
Common mistakes
- Rolling the elbow off your thighKeep the elbow in contact with your thigh so the movement comes from forearm rotation.
- Squeezing the handle too hardUse only enough grip pressure to keep the dumbbell secure.
- Forcing the end of the turnReverse direction before you feel a hard stop or need to compensate.
Safety
An off-center grip increases leverage, so even a small dumbbell can strain your wrist or elbow if the load is too heavy or drops into rotation.
- Rehearse the motion without weight before choosing the lightest available dumbbell.
- Increase resistance only when you can control every repetition.
- Stop the set if you feel wrist or elbow pain.
- Use your free hand to help take the dumbbell out of position after the set.
If you have an existing wrist or elbow injury, use an unloaded version or ask a physiotherapist before adding resistance.
Muscles worked
Primary muscles
Equipment
- Dumbbell
- Flat Bench
Sets and reps
- Sets
- 2–3
- Target
- 10–15 reps per arm
- Rest
- 1 min
Count one palm-up and palm-down cycle with a return to neutral as one rep.