Repetitive Motion Movement applied to muscles and joints the same way all the time may contribute to early wear and tear. This is probably because the constant repetitve motion focuses the damage to one area of the body. Basically, the constant force leads to over use . Over Use Using muscles and joints after they have become fatigued, or overly tired, increases the likelihood of injury. Overloaded muscles and soft tissues without proper rest have no chance to recover fully.
All body tissues are in a constant state of change.
Small damages occur continuously, which the body must repair in the normal course of a day. The damage gets ahead of the body's ability to easily repair the damage quickly. The tissues become weaker. They may begin to hurt - to cause symptoms . The weaker the tissues become, the more likely that they will suffer even more damage.