In the process of playing mahjong, touching and playing cards repeatedly makes the shoulder joint move excessively. Over time, the shoulder will always be in a state of tension, and shoulder pain will occur, which will easily lead to scapulohumeral periarthritis.
People prone to scapulohumeral periarthritis
1, teachers are prone to scapulohumeral periarthritis; Chronic cumulative fatigue injury refers to the chronic fatigue of tissues under repeated gravity for a long time. Although the stress is generally within the soft tissue strength of shoulder joint, the strength and toughness of tissues decrease, and some surfaces have no special changes, but the internal tissue structure has been damaged or diseased.
For example, the teacher's work, writing lesson plans every day and writing blackboard writing in class, consumes little energy, but requires a lot of muscles of shoulders and arms to participate in coordination, so it is easy to cause fatigue of soft tissues such as muscles and tendons. Long-term accumulation will lead to internal chronic injury and become a factor susceptible to periarthritis of shoulder.
2, the elderly are prone to scapulohumeral periarthritis; Older people over 50 years old, especially those with physiological transient autonomic nervous and endocrine system disorders, have metabolic disorders and soft tissue degeneration, and their response to injury is not easy to repair.
Further development will lead to painful spasms and disuse atrophy of some muscles in the shoulder. Especially the abnormal repair and adhesion of inflammatory tissue, can eventually lead to shoulder joint dysfunction and form a typical scapulohumeral periarthritis.
People's Daily Online-Playing mahjong for a long time is easy to cause scapulohumeral periarthritis.