The classic Romanian deadlift using a barbell hits the muscles of the posterior chain: the low back, glutes, and hamstrings. And the dumbbell variation has some advantages over using a barbell.
Dumbbell RDLs allow for a larger range of motion since there are no tall plates contacting the ground. Sure, you can increase the range of motion by standing on top of a platform, but when extending the ROM while using a barbell, lifters often go deeper than they can control because they've been taught to target the floor.
They're more focused on how close they get to the floor than they are on maintaining alignment. This isn't the case when doing RDLs with dumbbells. The focus switches to maintaining alignment throughout the extended range of motion.
With all the cardio options out there, it's no wonder we're confused about the best way to incorporate it into our workouts! Coach Robertson summarizes the pros and cons of each variation and helps us with fat-burning program design.
If you've been around weight training for any length of time, you've probably read or tried an arm specialization routine. There are a bunch of these around with different cool names for what amounts to the same old shit: do a bunch of arm exercises. Yeah, the exercises change and the sets and reps change, but it still amounts to just doing more arm work.