Stand inside a Smith machine with the bar positioned at about mid-torso height. Cradle the bar in the crooks of your elbows and brace your core. With feet slightly wider than shoulder-width, lower into a squat by bending your knees and hips while keeping your chest up. Push through your heels to return to standing, maintaining a controlled pace and upright posture throughout the movement.
Log your smith zercher squat sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.