The seated row with resistance tubing is a great back exercise. The largest muscle in the back is scientifically known as the latissimus dorsi. You might see it referred to as the "lats" or "wings." The lats are used any time you pull something. For example, when you open a fridge or a car door, you are primarily using your lat muscles.
This exercise can be done on the floor, chair, bench, ball, etc. First, anchor the resistance tubing around any secure object. From a seated position, grasp the tubing handles and fully extend your arms. Pull the tubing into your abdomen. Slowly return to the starting position and repeat the movement.
It is important to keep your upper back straight and your chest up high at all times. This will ensure that the spine is in the proper position. As you pull the resistance tube, try to keep your elbows in close to your body. You should exhale as you pull the tubing into your abdomen.
Grasp resistance tubing. Sit down with arms extended.
Pull the tubing into the abdomen, then exhale.
Return to starting position and repeat several times.