Forearm Supination
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Forearm Supination is a targeted strength exercise that involves holding a dumbbell with your elbow bent at 90 degrees and rotating your forearm to turn the palm upward from a neutral or pronated position, then controlled reversal. Its primary purpose is to build rotational strength and endurance in the forearm muscles, particularly the supinator and brachioradialis. Ideal for athletes in sports requiring grip power like tennis or climbing, or anyone addressing forearm imbalances, it requires only a single dumbbell and enhances wrist stability.
How to Perform Forearm Supination
- 1Sit on a bench or chair with feet flat on the floor, knees bent at 90 degrees.
- 2Rest your forearm on your thigh, palm facing up, elbow bent at 90 degrees, wrist hanging just off the edge of your knee.
- 3Hold a light dumbbell vertically in your hand with a hammer grip (thumb and pinky along the handle's long axis).
- 4Inhale, then exhale as you rotate your wrist outward (supinate) to turn your palm upward, keeping your elbow fixed.
- 5Pause briefly at the top for a 1-second squeeze in your forearm.
- 6Inhale as you slowly rotate your wrist back inward (pronate) to the starting hammer grip position.
- 7Repeat for desired reps, then switch to the opposite arm.
- 8Key form tips: Keep your upper arm and elbow stationary—movement comes only from the wrist and forearm. Use a light weight to maintain control; avoid swinging or using momentum. Common mistakes: Allowing the elbow to lift off your thigh or rushing the eccentric (lowering) phase.
