Medically reviewed by Amy Kwan, PT Your latissimus dorsi (your "lats") is a broad, flat, triangle-shaped muscle that spans your middle and lower back and extends to the front of your humerus (upper ...

This may include the latissimus dorsi, teres major, and pectoralis major muscles, for example ... swelling, and pain, among other symptoms. Other forms of infection, such as fungal infections ...

The symptoms: poor contact with the ... IF YOU FAILED: The inverted triangular-shaped muscle of your upper back, known as the latissimus dorsi or "lat," is too tight. This causes your swing ...

This can lead to muscle strain and pain. Symptoms associated with latissimus dorsi pain from spinal issues can include: Dull, aching pain Muscle spasms Muscle tightness and stiffness Reduced ...