STARTING POSITION:
Select the appropriate plates amount to put them on the bar. Support the barbell with the traps and grab it firmly with your hands. Stand straight, spread your feet at shoulder width apart. Contract your pelvic floor and core while keeping your chest up. Your knees should be slightly bent.
MOVEMENT:
Lower your chest by moving your butt back as far as you can keeping your spine in a neutral position. Make sure that you don't move your back and that you do the exercise with your hips. You should reach the maximum range of your hamstring flexibility when your trunk is parallel to the floor. Return to the starting position.
TIPS: Focus on stiffen the spine all the time using your core muscles.