Isometric Stretching: Isometric stretching is a type of static stretching (meaning it does not involve motion) which involves the resistance of muscle groups through isometric contraction of the stretched muscles.. The use of isometric stretching is one of the fastest ways to develop increased static-passive flexibility and is much more effective than either passive stretching or active stretching alone. Isometric stretches also help to develop strength in the tensed muscles (which helps to develop static-active flexibility), and seems to decrease the amount of pain usually associated with stretching. The most common ways to provide the needed resistance for an isometric stretch are to apply resistance manually to one’s own limbs, to have a partner apply the resistance, or to use an apparatus such as a wall (or the floor) to provide resistance.