Weight goes in the opposite hand as the down leg. Use your back leg as a counterbalance and reach it straight out behind you. Keep a very slight bend in the down leg and pivot at the hip. The low back should not bend at all.
MOST COMMON MISTAKES
Letting the pelvis rotate to either side, especially tilting toward the foot that’s on the ground. This takes the load off the glute and puts it all in the hamstring and adductor. Athletes not keeping their heel on the ground is another big problem.
If the athlete is having a hard time balancing have them look straight ahead while performing the movement.