Re: Re: Fat Loss as a Percentage of Total Weight Loss

[Guest guest]

This covers Preferential visceral fat mobilization.

I'm still looking at why the "fat that won't come off", but I think there is some metabolic effect at work.

Regards.

Clinics in Geriatric MedicineVolume 20 • Number 2 • May 2004Copyright © 2004 W. B. Saunders Company

Exercise and aging"Decreases in total adipose tissue accumulation and its abdominal (visceral) deposition are achievable by aerobic [66] [67] [68] and resistive training [69] [70] [71] . Significant changes in total body fat usually are seen only in conjunction with an energy-restricted diet [72] [73] [74] or high volumes of energy expenditure in exercise (5–7 hours per week of high-intensity activity). Preferential visceral fat mobilization often is seen in response to exercise and dietary interventions [75] [76] [77] [78] , however, which means that small amounts of total body weight or fat mass (5%) may be associated with substantial changes in visceral fat (=20%). This selectivity has important metabolic implications for the prevention or treatment of the insulin resistance syndrome [74] [79] , a precursor to atherosclerosis and type 2 diabetes. Such targeting of excess adiposity is both protective and therapeutic for many common chronic diseases, offering significant risk reduction in the case of osteoarthritis; cardiovascular disease; gall bladder disease; type 2 diabetes; breast, colon, and endometrial cancer; hypertension; stroke; and vascular impotence, for example [8] [80] [81] [82] [83] [84] . Although generalized obesity is associated with excess mortality, cardiovascular disease, osteoarthritis, depression, mobility impairment, and disability, it is predominantly excess visceral fat that is associated with sleep apnea; dyslipidemia; elevated fibrinogen, cortisol, and cytokines; hyperinsulinemia; glucose intolerance or diabetes; endothelial cell dysfunction; hypertension; and cardiovascular disease."

----- Original Message -----

From: citpeks

Sent: Saturday, July 31, 2004 9:59 PM

Subject: [ ] Re: Fat Loss as a Percentage of Total Weight Loss

>>>>From: "Rodney" <perspect1111@y...>Date: Sat Jul 31, 2004 5:59 pmSubject: Re: Fat Loss as a Percentage of Total Weight LossHi Tony:Regarding your comment below, just for clarificaton, are you sayingthat you believe there is practical evidence that that is how fatloss behaves under CR conditions? Or are you saying that it seemslogical that that might be the way fat would decline under thosecircumstances? TIARodney.> The percentage of body fat during weight loss will be an> asymptotic function with the limit being the minimum capable of> sustaining life.> Tony>>>>>I don't have any references, but it seems to me that a 150-lb personwith 5% fat would lose fat with more difficulty than the same personweighing 180 lb with 20% fat. I realize that weight loss involvesmore than losing fat. The 150-lb person has only 7.5 lb of total fatand much of that will be in the brain considering that the brain is~60% fat. Whereas the 180-lb person has 36 lb of total fat, of which3/4 can be lost.Bodybuilders, who have low percentages of body fat achieve those lowpercentages by increasing muscle bulk and thereby reducing theproportion of fat. They don't have a smaller total weight of fat;they have a smaller *relative* weight of fat. When weightlifters loseweight they lose mostly muscle because they don't have much fat tolose.IMHOTony