The barbell hack squat exercise is a variation of the basic squat that focuses more on strengthening and building the quad muscles

Steps :

1.) Start off by placing a barbell on the floor just behind your legs, standing with your feet shoulder width apart and your toes pointing forward

2.) With your feet firmly placed on the floor reach down and grasp the barbell from behind with and overhand grip.

3.) Lift the barbell by extending your hips and knees, be careful not to lock your knees.

4.) Squat down until your thighs are parallel to the floor and hold the position for a count.

5.) Slowly raise yourself up to starting position.

6.) Repeat for as many reps and sets as desired.