The dumbbells are curled to the shoulders
At the top position dumbbells are rotated outward so palms are facing forward
Dumbbells are lowered to starting position and returned to original position
Google “Zottman curls” and you’ll find the usual nonsense that this exercise will give your arms “new age gains,” will “build bigger biceps,” and the classic “works the biceps and the forearms.” There’s even a demonstration of seated Zottman curls that are a lazy man’s bodybuilding secret.
The “benefit” that Zottman curls work forearms is laughable because any
exercise done holding any kind of weight works forearms. Also, bodybuilders use wrist straps for pulling exercises, and these straps actually remove the forearms from the equation. But that’s the nonsense behind all of the bodybuilding secrets.
Arm strength, and the concomitant size of biceps and triceps, is developed by performing heavy pulling and pushing exercises and not by doing Zottman curls. Muscular development occurs as a result of lifting (and holding) heavy weights without the aid of wrist wraps or straps. The bodybuilding secrets that deal with exercises for biceps and triceps are a waste of time and effort.