What causes RSI/OOS?
Many factors acting together lead to RSI. They include: • Doing something with your arms repeatedly for too long. • Working with equipment that doesn’t fit your body. • Working too fast. • Not having breaks. • Holding your muscles in the same position for a long time. • Lack of training in the safest way to carry out a task. • Long work hours. • Lack of variety in the type of work you do. • Working in cold conditions. The underlying cause common to all RSI-type conditions is damage to muscles and tendons (and the nerves that run through them) through repeated micro-trauma. Whenever muscles are used, tiny tears can occur in muscle tissue. The local area becomes inflamed for a short time as the body attempts to repair the damage. Without enough rest, more activity causes further damage and more inflammation, thickening, scar tissue and pain. Nerves are also damaged by RSI. Tingling feelings are caused by the compression of nerves. Nerves run through muscles, and if muscle health is poor,