The cause of losing top form   By increasing our body’s abilities the use of automatization increases as well, and with increased automatization our control over movement begins to decrease.  Less control over movement decreases the feeling and control over our muscles and our body’s proprioception. That’s why the subconscious control over our muscles and their long term rigidity is increasing. This increases fatigue, a feeling of weakness and poorer coordination of movements as well as cooperation between agonists and antagonists.