T-Bar Row's are a great exercise to add variety to your back workout. They can be done in a machine or with a barbell loaded at one end . Like any compound back movement, bring the weight up and imagine your shoulder blades squeezing together. Keep you head up and pull with your lats, not your biceps. Picture your arms as hooks for your lats, which should do most of the work. After you hit peak contraction, lower the weight slowly, keeping tension on your back.