pound of muscle vs. a pound of fat

You summed it up very well. Teru

thanks.

Bravo, Mitzi.

P.S. Why was this urgent?

Of course you're right...but I MUCH rather weigh 160lbs of muscle than 160lbs of fat. I have lost whole sizes without losing a single pound due to exercise...I absolutely feel and look much better than if I didn't do anything. Not to mention...muscles DO fill your skin...the result is LESS sagging...I'm sure you are aware of that Hugs, Paola

Muscle density is 1.06 g/ml and fat density is (about) 0.9 g/ml. Thus, one liter of muscle would weight 1.06 kg and one liter of fat would weight 0.9 kg. In other words, muscle is about 18% denses than fat. 1. The density of mammalian skeletal muscle is 1.06 g/ml. "... 1.06 g/cm-3 which is the density of mammalian skeletal muscle" Source for quote: The Journals of Gerontology Series A: Biological Sciences and Medical Sciences 56:B191-B197 (2001) Specific Force Deficit in Skeletal Muscles of Old Rats Is Partially Explained by the Existence of Denervated Muscle Fibers Melanie G. Urbancheka, Elisa B. Pickenb, Loree K. Kalliainenc and William M. Kuzon, Jr.a,d http://biomed.gerontologyjournals.org/cgi/content/full/56/5/B191#R23 Reference given by the authors: Mendez J, Keys A, 1960. Density and composition of mammalian muscle. Metabolism 9:184-188. 2. The density of adipose tissue (fat) is about 0.9 g/ml "...by multiplying the density of adipose tissue (0.9196 g/ml)" Source: Association of adiponectin and resistin with adipose tissue compartments, insulin resistance and dyslipidaemia M. S. Farvid1, T. W. K. Ng2, D. C. Chan2, P. H. R. Barrett2 and G. F. Watts2* http://www.blackwell-synergy.com/doi/abs/10.1111/j.1463-1326.2004.00410.x "...on the assumption that the density of adipose tissue is 0.9g/cm3" Source of quote: Pediatric Research 55:437-441 (2004) Distribution of Adipose Tissue in the Newborn TRACEY A.M. HARRINGTON, ELIZABETH LOUISE THOMAS, GARY FROST, NEENA MODI and JIMMY D. BELL Source given by authors: Ross R, Léger L, Guardo R, De Guise J, Pike BG 1991 Adipose tissue volume measured by magnetic resonance imaging and computerized tomography in rats. J Appl Physiol 70: 2164-2172

Every one is objecting to my statement based on density-I am not talking about density--I realize that muscle based on cubic measurments (space, displacement etc., ) would weigh more. My argument is that if you weigh equal amounts( in ounces ) although the two pounds will NOT occupy the same amount of space--they will each weigh a pound. You are all discussing apples and oranges I am only discussing apples compared to apples . I guess that you can have your opinions--and I will keep mine a pound is a pound is a pound- When Gallelio dropped a pound of feathers and a pound of iron from the leaning tower of piza--they landed at the same time--they weighed the same--even though they took up different amounts of space. But you are all welcome to believe what you will! Be Blessed Marian S.C.

Actually Gallelio proved you could drop a grape and an apple at the same time from the same height and they would hit the table at the same time. Even though the apple weighs more than the grape. Something to do with velocity and mass and gravity. Just doing my bit to stir the pot on a slow afternoon. Lynda

Oh! I forgot I wanted to say that I assumed if you dropped Kate Moss and Star Jones from the top of a building, they would splat at exactly the same time. I wonder if they'd volunteer.