Medically reviewed by Amy Kwan, PT Your latissimus dorsi (your "lats") is a broad, flat, triangle-shaped muscle that spans ...

These stretches will help to loosen that upper back in ... pre- and post-workout, the muscles will tighten up,” says Obayuvana. But the mental impact on muscle tightness can’t be overlooked, ...

Muscles feeling tight after a long work day at your desk? Here are some stretches that will help you loosen up.