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Proper Form for Single-Arm Preacher Curl:
- Starting Position: Sit at a preacher curl bench and adjust the seat so your armpit rests comfortably at the top of the pad. Hold a dumbbell in one hand with a supinated (palm-up) grip.
- Arm Positioning: Extend your working arm fully along the pad, keeping your upper arm stationary throughout the movement.
- Curl Motion: Contract your bicep and slowly curl the dumbbell toward your shoulder, keeping your wrist stable.
- Peak Contraction: Squeeze your bicep at the top of the curl for a second to maximize engagement.
- Controlled Lowering: Slowly extend your arm back to the starting position, maintaining control of the weight.
Common Mistakes:
- Using Momentum: Swinging the weight or using body movement reduces effectiveness. Keep the motion slow and controlled.
- Lifting Too Heavy: Excessive weight can cause improper form and strain the elbow or wrist. Use a manageable weight.
- Not Fully Extending the Arm: Incomplete range of motion limits muscle activation. Fully extend at the bottom without locking the elbow.
- Wrist Bending: Keep your wrist neutral to avoid unnecessary strain and maintain proper mechanics.
- Elbow Moving Off the Pad: Your upper arm should stay in contact with the pad to isolate the biceps effectively.