Hi, I'm interested in doing reverse bicep curls to target my forearms. Can you describe how to perform this exercise using a barbell?
user
Sure, it's a good idea to warm up by stretching your arms.  I'd recommend a set of bicep curls to get the blood pumping into your arms.  This is different from stretching but good for warming up your biceps.  I'd then suggest you take a few warmup sets of about ten or so using a light weight to build muscle memory.  Then after that, I'd suggest you use a slightly heavier weight with longer periods of contraction.
assistant
Okay, that's the warmup, and I have the barbell ready. Now, how do I perform a reverse bicep curl?
user
The same as any other curl: with the elbow bent so that your forearm is perpendicular to the ground, and the barbell moving vertically.
assistant
So, it's exactly the same as a regular bicep curl? There are no differences whatsoever?
user
Sure, it's exactly the same.  This is just another way to work your bicep, with the forearm in a different position.
assistant
How is my forearm positioned differently?
user
A regular bicep curl works the biceps through flexion, moving your elbow up toward your chest.   Reverse curls work the biceps through extension, moving your elbow back toward your torso.
assistant
Hi, I'm interested in doing reverse bicep curls to target my forearms. Can you describe how to perform this exercise using a barbell?
user
Sure, it's a good idea to warm up by stretching your arms.  I'd recommend a set of bicep curls to get the blood pumping into your arms.  This is different from stretching but good for warming up your biceps.  I'd then suggest you take a few warmup sets of about ten or so using a light weight to build muscle memory.  Then after that, I'd suggest you use a slightly heavier weight with longer periods of contraction.
assistant
Okay, that's the warmup, and I have the barbell ready. Now, how do I perform a reverse bicep curl?
user
The same as any other curl: with the elbow bent so that your forearm is perpendicular to the ground, and the barbell moving vertically.
assistant
So, it's exactly the same as a regular bicep curl? There are no differences whatsoever?
user
Sure, it's exactly the same.  This is just another way to work your bicep, with the forearm in a different position.
assistant
How is my forearm positioned differently?
user
Let's imagine that your forearm is a line of two points, and let's call those points a and b.  A's further down the line than b.  In a regular bicep curl, a is to the right and b is to the left, and the barbell moves up from point
assistant
Hi, I'm interested in doing reverse bicep curls to target my forearms. Can you describe how to perform this exercise using a barbell?