I only do this on my last set, though. And I think those few extra partials would add up over time to get you better mid-back gains. 'On every rep of preacher curls, I only ever go about half — maybe ...
In a study done on wrestlers, a weight-training programme involving dumbbell hammer curls, tricep dumbbell extensions, preacher curls and incline dumbbell curls, among others, for the upper body ...