Stiffness felt throughout your back muscles comes from increased tension in your muscle tissue. The stiffness and back pain may occur in your upper back -- the thoracic and cervical regions -- or your lower back -- the lumbar region. Causes of increased muscle tension include trauma, overuse and poor posture. read more
The truth is that there are plenty of muscle groups which connect to the back. If a muscle gets tight, it may pull on part of the back and this is when the back pain will strike. In particular, the lower back is prone to pain which relates to tight and/or stiff lower back muscles and muscles which connect to the lower back. read more