BodyFlex, Oxycise, or LifeLift?!

Question: Out of these three 'aerobic breathing' techniques, which would you recommend?--I've been on and off BodyFlex for ages, and always get good results, but the others seem to also have quite a following.

Or are they all basically the same thing?

---

---

Answers: Out of these three 'aerobic breathing' techniques, which would you recommend?--I've been on and off BodyFlex for ages, and always get good results, but the others seem to also have quite a following.

Or are they all basically the same thing?

---

---

I don't know for sure what it's called...but I do this thing where you tighten and release your stomach muscles. You can do it anywhere anytime. I also force breath out in short puffs and tighten those same muscles. Works for me!! ?

---

---

---

---