Though its best to learn power yoga in a class with other students and an professional instructor, one can also learn this from good a power yoga DVD. Power yoga is a term used in the West to describe a approach to vinyasa-style yoga which is vigorous and fitness-based The reason that the power yoga class is a better choice if it is available is that the instructor can watch the poses that the student is doing and make corrections so that the technique is right and there is less of a chance of injury. When a person uses a power yoga DVD, there is not an instructor to make any corrections, nor are there usually mirrors available in the person’s house that allow him to see if the poses that he is doing match the poses the instructor is doing in the video. read more..