Blumpkin wrote:Alex, do you lose any weight from the actual act of sweating? In other words, does sweating itself burn any calories?
Also, it seems a lot of yoga instructors are quite slim and fit in the sense that they have very little body fat. Is this because yoga does a good job at making a person lose fat and slim down as opposed to bulking up (like you can see with plenty of weightlifters)?
Technically you do, but it's so insignificant in the short term (i.e. going to an exercise class) that the slight boost from that would be overcome by drinking the calories in a 1/4 cup of milk. I've developed a fairly extensive FAQ for my clinic for questions that other healthcare practitioners are often asked but don't have evidence on-hand to give, i.e. do "toning shoes" work, does vibration training do anything, what benefits does hot yoga have over regular, etc - all cited from peer-reviewed papers and scientific journals. I can post a snippet here if I grab it from work next week. Otherwise it's just my word vs. other stuff.
The slimness isn't necessarily from doing yoga - it would contribute, but I'd challenge you to find a yoga instructor who doesn't eat healthily. As far as the bulking up....*takes breath*
[wrote a bunch of stuff, looked it over after posting and realized it wasn't related at all]
Where am I going...oh yeah - muscles have to work against an increasing stimulus to tear, repair, and grow. Yoga routines are generally set and contain few variables - you'll hold the position for the same length of time, perhaps in the same order, and with little option to increase the muscle demand (you can certainly increase the stretch though). Because the whole concept behind increasing muscle size is progressive overload, yoga really does nothing for muscle building past the initial phase of adaptation to that particular exercise. If you look at any athlete, they'll modify their volume, intensity, rest etc to gradually increase the stimulus on their body - yoga is flexibility, with some muscle demand thrown in if you're not used to isometric contractions. Most yoga, anyways.
However, you can have some discussion about other factors such as hormone levels and body type - I don't doubt that a naturally skinny guy could do powerlifting every day, eat well and put on less muscle than a mesomorph using HGH and doing yoga.
Losing fat and slimming down is most quickly accomplished by interval training - however, the success of yoga and other fitness classes is that running on a treadmill by yourself every day sucks ass. There's a reason people enjoy all sorts of classes - there's a motivation there and enjoyment that doesn't exist for most people on their own.
And yoga will not lengthen a muscle out in terms of anatomy - insertion points are genetic, and you'll see bodybuilders gripe about their shitty biceps tendon insertions, etc. Everyone is completely variable in their fat reduction response - when I was working with a couple clients who were after general weight loss, we did a 5 site measurement at the start of the program - hips, waist, thighs, chest, arms. Doing the same routines, one girl lost 16 inches total, 4 being from the chest, and the other girl lost about the same amount in completely different ratios. The one losing lots from the chest was irritated.
Anyways, I can't remember what the original question was I'm just rambling....but again, I enjoy yoga...it just doesn't hold comparative merit in terms of weight loss to many other types of exercise. Great for many chronic conditions or general fitness.
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