Active flexibility is muscle assisted stretches that builds strength and length in the participant. A great example of an active stretch would be a seated hamstring stretch. By flexing the feet and engaging the quadriceps it draws your body deeper into the posture using your own internal strength.
Active stretching builds more coordination in the body and allows the body to hold positions without any support system such as hands or straps.
This training is great for dancers, gymnasts, aerial artists and acrobatics.