What Have the Round Deltoid and Latissimus Dorsi Done for Your Arms?
Regarding the things beside the scapula, we've covered many articles about them before, and this isn't the last one.
Today's main character is the large round muscle and the latissimus dorsi, which, aside from fitness enthusiasts, few people will notice. Even if you discover you experience shoulder pain after playing basketball, chopping wood, playing games, or doing gymnastics, you might rarely consider whether it's due to them being overused.
This is because they are located in the back of the shoulder, the large round muscle and the latissimus dorsi converge and attach to the front of the humerus, close to the top end. If you feel pain here, when you try to touch it, you will often feel a string-like sensation. A gentle press will intensify the pain.
These two muscles allow your arms to lower, bring your arms closer to your chest, and help with elbow flexion. Their other function, with the assistance of the latissimus dorsi's posterior bundle, is to extend your arms backward.
If the large round muscle has trigger points, then when you rest your elbow on a table or upward and forward pick up things, you will feel stabbing pain in the latissimus dorsi. If the trigger points of the adjacent latissimus dorsi are also activated, the same action will cause pain in the mid-back, at the lower corner of the scapula. Trigger points at the lower end of the latissimus dorsi will cause abdominal pain. If the trigger points of the latissimus dorsi are particularly active, the pain may also radiate to the inner side of the arm, all the way to the ulnar side (little finger) and the fourth and fifth fingers. The trigger points of the large round muscle and the latissimus dorsi limit the muscles from fully stretching, thus hindering the upward or forward extension of the arms. Latissimus dorsi pain may occur at night, which will affect sleep.
Therefore, we need to try to avoid actions such as arching upwards or pressing downwards with our arms, and we need to pay special attention to actions that repeatedly use muscles in front and upward stretching. Girls shouldn't wear too tight clothes, as this is also a cause of the activation of the latissimus dorsi trigger points,
As shown in the figure above, we can easily catch the large round muscle and the latissimus dorsi,
Of course, I still recommend using a fascia ball to massage them against the wall. You can use a rolling ball to slowly find the painful point, then massage it specifically. The principle of rest and massage is to be gentle and progressive. If it's too painful, you won't want to press a second time,
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