Janel Bilal shows the correct way to do biceps curls: Press the shoulders down and squeeze the rhomboids (the muscles in the upper back) to maintain stability. (Karen Tapia-Andersen / Los Angeles Times)
Another view of a proper biceps curl. There should be no rotation of the wrists or movement in the lower back. (Karen Tapia-Andersen / Los Angeles Times)
Janel Bilal shows improper form on a seated row with her shoulders rotated forward and her back slumped. (Karen Tapia-Andersen / Los Angeles Times)
Janel Bilal shows proper form on a seated row: shoulders are pinned down with back and chest up. (Karen Tapia-Andersen / Los Angeles Times)
