active vs passive stretching

Dynamic stretching is a gradual transition from one body position to another, and a progressive increase in range of motion as the movement is repeated several times in a controlled, smooth and deliberate manner. It is performed through an extended range of motion without exceeding a person’s static-passive ability. Pilates exercises involve a lot of dynamic stretching.
Static stretching involves slowly stretching a muscle or tendon group and holding the position for a period of 10-30 seconds. It can be active or passive. Active static stretching is holding the stretched position using the strength of the agonist muscle without any outside assistance for the stretch. This is common in yoga.