Is Bikram Yoga an aerobic activity?

The word aerobic literally means "in the presence of oxygen." Aerobic activity trains the heart, lungs and cardiovascular system to process and deliver oxygen more quickly and efficiently to every part of the body.
Bikram yoga elevates the heart rate to its target level, promoting an aerobic workout.
Use this formula to find your target heart rate: subtract your age from 220 and multiply by 60 and 90 percent. For example, a 30-year old would calculate his target zone using the above formula: 220-30=190. 190x60%=114 and 190x90%=171. This individual would try to keep his heart rate between 114 (low end) and 171 (high end) beats per minute.