Ella-
I am by no means an expert about yoga, but I have been doing it for 3 yrs. now. I do believe that it promotes muscle 'building' for lack of a better word. Done regularly, in the Ashtanga style, as you mentioned, it can give me as good muscle tone as lifting weights. BUT, it does seem to be a DIFFERENT type of muscle--longer and leaner looking, more like a dancer or something. I do lose slowly, BUT, I do notice I get smaller. Haven't been on the scale in eons (scales make me crazy) but when doing yoga as I've done lately- regularly- I do get SMALLER.
I pay little attn. to the scale. I know it matters a lot for some people, but I like measurements more, and my reflection in the mirror to tell me how I'm doing.
It may slow your wt. loss ON THE SCALE for a little while , but if you LIKE yoga (I love it) it does a body good. The ashtanga (flowing style) is a LOT more aerobic than anyone can imagine, also, wouldn't you say?
Some more intermediate tapes that I bought lately (if you
re in pretty good shape- don't do more than you can-yoga is not a contest
) are Bryan Kest's power yoga and Living Arts now has a tape out called Intermediate yoga w/ Rodney Yee. They are TOUGH, but you still get the same effect- a good workout that leaves you stretched, worked, tingly, energetic, but strangely relaxed at the same time.
I know it's hard NOT to worry about the scale, but if you SEE changes, isn't that great too?
Be looking forward to seeing you post more about your yoga on this board!
yb