27/02/2025
Supinated, Mid, and Pronated Curls 💪
After countless questions about hand position in bicep curls, we are here to clarify! While all elbow flexors are engaged in every variation, your grip choice shifts the emphasis to different muscles.
✅ Supinated Grip (Biceps Curl)
The biceps brachii is a strong elbow flexor and forearm supinator, making this position mechanically advantageous. While the brachialis and brachioradialis assist, the biceps generate force.
✅ Mid-Position (Hammer Curl)
The brachioradialis becomes more involved due to its optimal leverage. The brachialis also contributes significantly since it is not affected by forearm rotation, while the biceps brachii remains active but less dominant.
✅ Pronated Grip (Reverse Curl)
The biceps brachii is mechanically disadvantageous, reducing its involvement. This grip shifts more load to the brachialis, which is unaffected by the forearm position, and the brachioradialis, which plays a key role in elbow flexion in this grip.
All three muscles are active in every variation, but your grip shifts the focus!
Want to see the muscles in action? Explore the Muscle and Motion Strength Training App! 🔥📲