The 90/90 position has a series of functional range conditioning exercises that open up more joint capsule space and allow for an active range of motion to be paired with core tension and stability. I will cover several of these. The main purpose is to comprehend that most injuries happen at end range joint positions. Traditional static stretching does not allow for end range joint functionality. Thus, functional range conditioning OR (FRC) is now being utilized in the NFL, UFC, MLB, and collegiate agencies. It stresses the importance of recovery in balance with isometric tension and alignment. Try this particular passive life before and leg day and 2 × 3 times per week for hip rotation.