Failing to do any exercises isolating them and doing to many
exercises for the anterior make the rear deltoids one of the weakest major
muscles for most people in the gym. You can use the Total Gym rear raise to
strengthen the posterior deltoids in one fluid motion.
Doing posterior deltoid flies on the Total Gym involves grabbing the
opposite cable with each hand forming an x with the cables. From an upright
seated position near the top of the Total Gym bench try to keep your arms in
the same angle as you pull both arms as far back as possible.
Most rear deltoid exercises are best performed with a light weight (low
Total Gym bench) and using proper form. Using a weight that is too heavy
will cause you to take the isolation off of the target muscles. It is
unlikely you will have a training
split which has a day strictly for the rear deltoids so you will
either do these Total Gym rear deltoid raises at the end of your shoulders
or back workouts.