Stand with your feet shoulder-width apart under a Smith machine bar resting on your upper back. Brace your core, then bend at the hips and knees to lower into a full squat, keeping your chest up and back straight. Push through your heels to return to standing with control through the entire range of motion.
Log your smith full squat sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.