Active isolated stretching (AIS) is a technique used to improve flexibility and reduce muscle tightness by using controlled, repeated movements. In AIS, the individual actively engages muscles to move into a stretch and holds it for a brief period (2-3 seconds) before releasing. The process is repeated several times to achieve increased muscle length and flexibility.

This technique is beneficial for athletes, individuals recovering from injury, or those experiencing muscle stiffness, as it helps lengthen muscles, improve joint mobility, and enhance circulation. AIS is often used to prepare the body for physical activity and to restore function after rehabilitation.

Active isolated stretching is an effective way to improve range of motion, increase flexibility, and prevent muscle imbalances, making it a valuable component of rehabilitation programs.