The chest-supported row is one of the best and most underrated exercises for building your back and arms. By bracing against a bench, you eliminate lower-back stress and more or less eliminate the momentum that can creep into traditional bent-over rows. A few tips for getting this exercise right: 1. Stretch and squeeze your shoulder blades. Let your shoulder blades stretch apart as you lower the weights, then squeeze them together as you lift (imagine gripping a pencil between them). 2. Think el