New Delhi, Feb. 21 -- The preacher curl is a staple exercise when it comes to arms workout. The best part about it is just how easily it can be tweaked in multiple ways for greater or lesser difficulty. Depending on the time under tension, the weight load, rep pattern, and range of motion while performing the exercise, the preacher curl has something for everyone. But it would be a waste to perform just its most conventional form. It is a classic biceps exercise, but it needs a modern twist to stay interesting.

First, it's good to know the right technique to master the conventional form. In case you didn't know, the preacher curl can be done in two ways: on a machine with an in-built pulley and weights-that can be changed just like in a ...