Typically, a person is stronger at a certain point of a lift than they are at others (e.g. half squat vs full squat). To overcome the differentiation in resistance, bands are used to accommodate changes in strength at different phases of the movement. Ultimately, your muscles will have to work harder because of the bands.

How to Setup Heavy Duty Resistance Bands (PDF)

Here's what you can expect to feel while squatting with powerlifting bands:

• Exercise may feel awkward at first due to the change in directional forces
• A progressive weight increase as the bands are stretched
• A tendency for the bands to lock you into a groove (like a Smith machine)

The following are instructions for performing squats with powerlifting bands:

First, anchor the bands in place. Heavy dumbbells work great for securing bands. Once the bands are setup, disengage the bar from the rack and position your feet shoulder width apart or wider. Your toes should be pointed slightly outward. Next, squat down until your thighs are parallel to the floor. Be sure to keep a straight back posture as you squat. Finally, ascend to the starting position.  Be sure to exhale as you stand up. Squats should be done slowly and with control. Do not bounce out of the squat position.