persists with rest, you have to ask what is causing the symptoms! Muscle stiffness is usually caused by weakness. With very specific muscle strengthening, you will never experience stiffness again and the need to stretch will disappear. Three common stretches that may lead to long term back-, hip- and knee degeneration. If weak muscles (usually stiff ) are stretched persistently, this will lead to muscles becoming weaker. More weakness will cause an increased feeling of stiffness and enhance the need to stretch more. This vicious cycle may lead to joint degeneration, chronic dull ache with no relief from pain medication, chronic tiredness and general weakness. In severe cases this may lead to neurological problems and decreased sensation. Therefore please consider the cause of your stiffness before starting a passive stretching routine. If symptoms persist, it will be wise to consult your physio regarding the cause of your stiffness. Avoid long term complications by not treating your stiffness symptomatically.