Knee Extension Test: Knee Extension Test is used to assess the flexibility and strength of the knee joint. It involves flexing the leg against a therapist-held resistance and measuring the amount of force applied. This test may be performed with the subject in a seated or standing position.Cook's Cluster: Cook's Cluster is a form of rehabilitative exercise used to strengthen the muscles controlling knee and hip joints. It consists of multiple exercises that are both dynamic and static, including strength