Sir
I am from India, what we regularly do is easy and simple, breath control called 'Pranayama'. Breathing exercise, you will be amazed at the calories you can burn with that, all the time you could do it (Different types of course), can go on in little more detail , if you permit me to. in a nutshell, here are a few
(a) Kapal Bati :- Youtube has a lot of video on it, you could see the video of Baba Ramdev, this one is a burner. exceptional for middle torso, eyesight, etc,
(b) Anulom Vilom :- another super stuff, not as powerful as the previous done well you could go off to sleep and sleep like a baby (while still burning)
(d) Brahmiri :- i found this the best for getting into breathing rhythm to consume least air while diving, i am yet to come across some who consumes less than me (With an exception of some real good young children, they practically don't breathe because of their body size probably). Brahmiri and its vibration is i believe spiritually good too (though i am not spiritual (into spirits, yes
)).
what Brahmiri actually does is balances your hunger levels (That is if you are anorexic, makes you hungry and opposite for opposite)
(e) There is also this sudershan Kriya, again like the Kapal Bati, little more powerful and needs to be done under guidance
Dont be intimidated by these names, they are simple and extremely easy to follow along, especially for divers,
Best Part, it is not strenuous at all, in fact after a while it becomes an habit, to be in a state constant Pranayama and be sensitive to change of your own breath
PS
I guess, this bump will do someone good[/B]