Wrist Curls with Barbell for Forearms
Stand upright holding a barbell behind your glutes with an overhand grip, hands about shoulder-width apart. Keep arms extended down.
Keeping your upper arms stationary, slowly curl the bar up by flexing at the wrist joint. Focus on using just your forearms.
Curl the bar as high as you can, maintaining tension in your forearms. Squeeze at the top.
Slowly lower back down until your wrists are fully extended again. Control the bar on the descent.
Maintain proper alignment - don't hunch over or arch your back. Keep arms fixed behind you.
Use a light enough weight that you can complete all reps with proper form and technique.
Breathe naturally and keep your core muscles engaged for stability.
Barbell wrist curls behind the back isolate and strengthen the forearm flexor muscles. Go slow with good control.
Proper form is important, so use a reasonable weight and maintain muscle tension.