How to perform:
Setup
Stand with your feet comfortable width apart and engage your core. Get a bumper plate/block/aerobic step to make this exercise as a deficit to give more range of motion and make it harder.
Movement
Take a large step back, steady your balance, then drop your trunk down between both legs as you bend the front and back knee, keeping trunk upright. Make sure that back leg almost touch the floor. Step forward and return to start position.
Tip
Offset your feet, do not stand in a straight line
Do not let your knees fall inward as you bend and straighten them
Pretend as if your trunk is sinking down into quicksand between your legs as you descend with the weight.