Set a barbell on the safety pins of a power rack at about knee height or slightly below. Stand with your feet under the bar, hinge at the hips with a neutral spine, and grip the barbell with hands just outside your legs. Drive through your heels and extend your hips and knees to lift the bar to a standing position, focusing on engaging your posterior chain. Lower the bar back to the rack in a controlled motion and repeat.
Log your barbell rack pull sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.