Muscle Tightness and Cramps, Why?   Almost everyone has experienced tight muscles at one time or another. They can be painful, lead to injury,  limit movement and decrease performance.  Preventing and managing tight muscles is the key to avoiding injuries.   There are a few common reasons and times that muscles can tighten up.  The most frequent times when muscle tightness can occur are during periods of prolonged inactivity, during exercise,…