exercises you will NEVER see anybody in the gym do until you actually do it yourself!
The reasons?

First, it's NOT a common exercise, even though it's been around for many years.
Second, it's a tough exercise to do! But as you know, the toughest exercises are always
the most productive.

The Suitcase-Style One Arm Deadlift places extreme torque on the core and will help
you develop an incredibly tight and powerful midsection. Basically, instead of using both
arms and doing a barbell deadlift in front of your body as you normally would, you'll
stand BESIDE the barbell and pick it up with one arm.

Imagine reaching down and picking up a suitcase sitting beside you. That's the Suitcase-
Style One Arm Deadlift but, of course, using a heavy barbell!

How To Do Suitcase-Style One-Arm Deadlifts:

First, if you're doing this exercise off the floor, load a barbell with a 45-lb plate on both
ends. To lift this amount of weight, you should be able to deadlift at least 250 to 275 lbs
in a normal deadlift.

If you wish to use less weight for this exercise, set the safety rails in the power rack to
just below knee height and load the bar with however much weight you want to use.
The reason you'd want to use the rack is, because you're using smaller plates, the bar will
start too low to the ground and you'll need to lean over too much to the side to pick it up.

Stand beside the barbell and reach down and grasp it with one hand. When you do the
One-Arm Deadlift, you should grip the bar slightly off-center. Your thumb and index finger
grip should be about a centimeter (about a half inch or so) from the edge of the center grip
surface. This uneven grip will prevent the bar being lifted unevenly and tilting as you are lifting.

The reason for this is that when you grip the bar with one hand, your thumb and forefinger
grip area become the main pivot point. If that main pivot point is not close to the real center
of the bar, the bar will tilt when you pick it up. By sliding your hand down so that your thumb
and forefinger grip area is closer to the real center, you will have a much easier time keeping
the bar level.

Before you pick up the bar, make sure your shoulders are level and your entire core area
is tightened up very strongly. Pick up the bar, focusing on keeping your shoulders level as
much as possible. The weight of the bar on the one side will place an EXTREME stabilizing
load on the other side of the body. You will be pushing HARD with the same side foot as
you're pulling on the bar, e.g. if you're picking the bar up with your right arm, you'll be
pushing hard with your right foot.

Keep your lower back tight and arched as you stand up.

Come all the way up to the top position and hold for a few seconds then lower the bar
back down slowly.

Here's a side view of the exercise.

Gripping the barbell with one arm in this fashion is also VERY challenging to the grip.
You'll need to hold on tight in order to keep your grip on the bar.

Set the bar down on the floor between reps and relax the core. Re-tighten everything then
start your next rep. This exercise should only be done for low reps, e.g. 3 to 5 reps per set.
Any more than that and the stabilizing muscles of the abs will become fatigued and cause
the torque to go into the lower back instead of the abs, where you want it.

You can go immediately to the other arm to work that next after doing all your reps on
one side.