Lie on your back on the sled machine with your feet placed shoulder-width apart on the platform. Keep your back flat against the pad and your core engaged throughout the movement. Push through your heels to extend your hips and knees, driving the sled away from your body in a controlled motion. Lower the sled back by bending your knees and hips until you return to the starting position, maintaining steady tension in your legs. Avoid locking out your knees and keep the movement smooth and controlled for each repetition.
Log your sled lying squat sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.