Re: The Fastup/Slowdown Principle //

[Guest guest]

Hi folks:

Here is the abstract of one article (referenced in Tony's '

Berardi' link in post #14169) which provides support, in part, for

the data in the tables of the Berardi article - which suggests to me

there is likely a benefit to a Fastup/Slowdown strategy. Note

especially the part I have triple-asterisked below:

" Body Fat Content Influences the Body Composition Response to

Nutrition and Exercise

GILBERT B. FORBESa

University of Rochester School of Medicine and Dentistry, Rochester,

New York 14642, USA

aAddress for correspondence: Gilbert B. Forbes, M.D., University of

Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Box

777, Rochester, NY 14642, Voice: 716-275-5803; fax: 716-244-6097.

In most situations involving a significant change in body weight,

both fat-free body mass (FFM) and body fat participate, but the

relative contribution of FFM and fat to the total weight change is

influenced by the initial body fat content. Overfeeding: In

experiments of at least 3-weeks' duration, the weight gain of thin

people comprises 60-70% lean tissues, whereas in the obese it is 30-

40%. Underfeeding: In humans, there is an inverse curvilinear

relationship between initial body fat content and the proportion of

weight loss consisting of lean tissue. The same trend holds for

animals and birds, including loss during hibernation. ***Another

factor is the magnitude of the energy deficit: as energy intake is

reduced, lean tissue makes up an increasing fraction of the total

weight loss.*** Exercise: If individuals lose much weight with

exercise, the result is usually some loss of lean tissue as well as

fat, and once again the proportion of lean loss to total weight loss

is greater in thin people than in those who have larger body fat

burdens. Members of twin pairs often differ in weight. In thin

individuals, lean accounts for about half of the intrapair weight

difference, whereas in the obese it accounts for only one quarter.

Body fat content must be taken into account in evaluating body

composition changes induced by nutrition and exercise. "

Rodney.

--- In , " Rodney " <perspect1111@y...>

wrote:

>

> Hi Tony:

>

> A couple of additional points to add to the comments below

regarding

> the possible benefits of cycling weight with different rates of

> weight gain and loss. Perhaps it could be called the

Fastup/Slowdown

> principle?

>

> ***IF*** it works over periods of months (which is FAR from

proven),

> then might the same principal also apply to daily fluctuations in

> caloric intake? In other words, would a similar LBM building

effect

> result from pigging out on all-you-can-eat chinese one day, thereby

> putting on a half pound of net weight with a high proportion of

LBM,

> followed by a couple of weeks with a daily caloric deficit of 100

> calories, with a comparatively minor loss of LBM? Thereby

achieving

> a gain in LBM while weight has been net stable. (Or even on an

> intraday basis - one large meal per day with small snacks the rest

of

> the day?)

>

> Of course this is all speculation arrived at by taking the data in

> one table in the article you linked to its logical conclusion. But

> if the data in that table are accurate then this is highly

> significant to everyone here, imo.

>

> It also TOTALLY destroys any vestige of belief that FASTING is

> beneficial. Fasting is the exact opposite of this, and could not

be

> better calculated to destroy LBM no matter how hard you tried - of

> course ***IF*** it is true.

>

> Perhaps it is also worth noting that the average SAD dieter is one

> who slowly gains ten pounds over three years and then tries to lose

> it all in a couple of months. Again - if this principal is

correct -

> that is the exact opposite of what is desirable.

>

> Food for thought.

>

> Rodney.