How can I safely perform deadlifts with a barbell attached to the floor?

To safely perform deadlifts with a barbell attached to the floor, start by standing with your feet hip-width apart and the barbell over the middle of your feet. Bend at your hips and knees to grip the barbell with both hands, keeping your back straight. Engage your core and lift the barbell by straightening your hips and knees. Keep the barbell close to your body throughout the movement and lower it back down with control. Avoid rounding your back and use proper form to prevent injury.