Since fascia surrounds every muscle in the human body, any tightness or restrictions in this connective tissue will not only increase your risk of injury but decrease athletic performance and recovery. The greater the restrictions, the greater the breakdown in movement and mobility. While you wouldn’t attempt to run a marathon in pants three sizes too small, neither should you attempt to increase mobility or fitness levels with restricted fascia.
Additionally, when it comes to strength training, tight fascia also inhibits muscle growth by preventing nutrients moving in and metabolic waste out of cell.