1 Income statement - This statement measures how well a company is performing financially during a specific time period. 2  Statement of retained earnings - This statement shows the effect of any profit or loss on the retained earnings of a company for a specific time period.
Chin-ups, like most pull-ups, target the latissimus dorsi muscle of the back as a shoulder extensor, scapular downward rotator and scapular depressor, in bringing the spine to the humerus. This is assisted by elbow flexors (brachialis, brachioradialis, biceps brachii) which bring the humerus to the forearm.
Muscles Worked. The target muscle is the erector spinae, which runs the length of your back from neck to tailbone. But this exercise also stretches and works the stabilizers of the posterior chain, including the hip abductors, gluteus maximus, and hamstrings. The antagonist stabilizers for the bridge are the rectus abdominis and the obliques.