Stretching is a form of physical exercise in which a specific muscle or tendon is deliberately flexed or stretched in order to improve the muscle's felt elasticity and achieve a feeling of increased muscle control, flexibility, and range of motion. Stretching is also used therapeutically improve function in daily activities by increasing range of motion. Stretching can be detrimental when performed incorrectly. Dr. De Jesus is certified in proper stretching techniques.

Static stretching involves holding the stretch for a long period of time, whereas dynamic stretching involves short stretches that are repeated several times. Active isolated stretching is considered a form of dynamic stretching. Active Isolated Stretching (AIS) is a technique that helps people maximize the effectiveness of stretching to become more agile and less injured.