INCLINE DUMBBELL CURL
Most guys cheat with curls by allowing their elbow to stray too far behind their bodies or relying on help from the shoulders or back. Those things remove emphasis from the biceps. This specific type of curl practically eliminates any chance of cheating.
How to do it:
• Sit back on an incline bench set at a 30-degree angle with dumbbells in hand and your arms extended toward the floor.
• Keep your elbows close to your body and your shoulder blades pinned to the bench as you curl the dumbbells upward; squeeze your biceps at the top of the movement.
• Slowly lower the dumbbells back to the starting position. Repeat.
NEXT: PLANK