The lat pulldown is a common gym machine used to target the muscles in the back, specifically the latissimus dorsi (lats). It typically consists of a seat, a pulley system, and a long bar attached to a weight stack. To perform a lat pulldown: 1. Adjust the seat height so that your thighs are supported and your feet are flat on the floor. 2. Sit down and grasp the bar with an overhand grip, slightly wider than shoulder-width apart. 3. Lean back slightly, keeping your back straight and your chest up. 4. Pull the bar down towards your upper chest, squeezing your shoulder blades together as you do so. 5. Pause for a moment at the bottom of the movement, then slowly release the bar back to the starting position. 6. Repeat for the desired number of repetitions. It's important to maintain proper form and avoid using momentum to perform the exercise. Start with a weight that allows you to complete the desired number of reps with good form, and gradually increase the weight as you get stronger.