I bought these tapes in the hope of learning some useful breathing techniques in that I am a classical singer and have studied many other types of breathing techniques to increase my lung capacity, strength, vocal power and cardio endurance. ( I am also a personal trainer and have over 100 videos). Oxycise were the first videos that I ever returned. The breathing "technique" in Oxycise is not only completely useless, boring and fabricated, but I believe it can cause constriction of the throat and breathing organs. There is no way that these tapes can increase anyone's fitness level in any way. Oxycise is an example of clever marketing and it preys on people who are looking for a quick fix.

Abbe