Set an incline bench at about 45 degrees and sit back with a dumbbell in each hand, arms fully extended down with palms facing forward. Keep your elbows close to your sides and curl the dumbbells upward by bending at the elbows while keeping your upper arms stationary. Squeeze the biceps at the top, then slowly lower the weights back to the starting position with control. Maintain a neutral wrist and avoid swinging.
Log your dumbbell incline biceps curl sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.