Position - Place one foot on the force plate so that the hip, knee, and toe are in line. Do not put the foot in the middle of force plate. The other leg is straight off to the side and out of the way. Place your hands on the grips provided. Keep your back pressed against the support and head straight.
Movement - Lower the weight until the back of your knee breaks a 90 degree angle. When pressing and straightening out your legs, do not lock out your knee.
Repeat - Complete the prescribed reps and then perform the exercise with the other leg.