single arm barbell deadlifts (135 lbs)

While similar to the deadlift in that muscles used are upper back, lower back and hamstrings, I actually use this motion for development of the oblique muscles in the abdominals. By holding the bar on one side of the body, the lifter is forced to use the oblique muscles on the opposite side (contra-laterally) to stabilize. Start your bar at a height that ensures you can properly arch your lower back. As you lift the weight, make sure both shoulders stay parallel to the ground. Selection of weight is up to the lifter's abilities, but I would recommend starting the bar elevated off the ground if using smaller plates (either using platforms under plates or in a power rack using spotter bars).