How to train the lower part of the latissimus dorsi

Fitness can be said to be a popular way nowadays, because for some office workers, they can arrange their time reasonably, and with professional fitness coaches, they can shape their bodies better. For men, more attention should be paid to muscle training. However, it is still very difficult to exercise the hundreds of muscles in the body. So, during exercise, do you know how to train the lower part of the latissimus dorsi?

The latissimus dorsi is located subcutaneously on the lower back and posterolateral side of the chest. It is the largest broad muscle in the body and is in the shape of a right triangle. The upper medial part is covered by the trapezius muscle. It originates from the lower 6 thoracic spinous processes, all lumbar spinous processes, and the posterior 1/3 of the outer lip of the iliac crest with aponeurosis.

The latissimus dorsi muscle flap is one of the most commonly used muscle flaps in clinical practice. It is an ideal flap choice because of its hidden location, rich blood supply, large cutting range, and strong anti-infection ability. During surgery, part of the latissimus dorsi muscle is often removed rather than the entire muscle. When the latissimus dorsi flap is used to cover the wound rather than to reconstruct muscle function, the thoracodorsal nerve is also cut when the latissimus dorsi muscle is removed. Therefore, the retained latissimus dorsi muscle loses its function due to lack of nerve supply. In recent years, based on the anatomical characteristics of the thoracodorsal nerve that innervates the latissimus dorsi muscle, we have retained the innervation of the thoracodorsal nerve when harvesting the myocutaneous flap, thereby retaining the function of the unharvested part of the latissimus dorsi muscle, reducing the cost of the donor site, and the transplanted latissimus dorsi muscle flap still has a good blood supply.

Latissimus dorsi and its origin and insertion

Location: on the lower back and posterior and lateral sides of the chest.

Starting point: It originates from the 7th to 12th thoracic vertebrae and all lumbar spinous processes, the median sacral crest, the posterior part of the iliac crest and the outside of the 10th to 12th ribs through the aponeurosis.

Insertion: crest of lesser tuberosity of humerus.

Nerve supply: Thoracodorsal nerve arising from the brachial plexus of the spinal nerves.