"Bully" <bully1@proteinbars.co.ok> schreef:
>>> Interesting. What proportion of muscle is generally composed from
>>> water?
>> I think you will find something here;
>> http://jcem.endojournals.org/cgi/content/full/82/2/407
> "...castrated male animals..." !!!!
And hypogonadal humans...
"Seven hypogonadal men, 19-47 yr of age, after at least a 12-week washout
from previous androgen therapy, were treated for 10 weeks with testosterone
enanthate (100 mg/week) by im injections. Body weight, fat-free mass
measured by underwater weighing and deuterated water dilution, and muscle
size measured by magnetic resonance imaging were assessed before and after
treatment. Energy and protein intake were standardized at 35 Cal/kg·day and
1.5 g/kg·day, respectively."
Interesting eh?
Thats about .7 grams per pound...
"Body weight increased significantly from 79.2 ± 5.6 to 83.7 ± 5.7 kg after
10 weeks of testosterone replacement therapy (weight gain, 4.5 ± 0.6 kg; P =
0.0064). Fat-free mass, measured by underwater weighing, increased from 56.0
± 2.5 to 60.9 ± 2.2 kg (change, +5.0 ± 0.7 kg; P = 0.0004), but percent fat
did not significantly change. Similar increases in fat-free mass were
observed with the deuterated water method. The cross-sectional area of the
triceps arm muscle increased from 2421 ± 317 to 2721 ± 239 mm2 (P = 0.045),
and that of the quadriceps leg muscle increased from 7173 ± 464 to 7720 ±
454 mm2 (P = 0.0427), measured by magnetic resonance imaging. Muscle
strength, assessed by one repetition maximum of weight-lifting exercises
increased significantly after testosterone treatment. L-[1-13C]Leucine
turnover, leucine oxidation, and nonoxidative disappearance of leucine did
not significantly change after 10 weeks of treatment. There was no
significant change in hemoglobin, hematocrit, creatinine, and transaminase
levels."
"Replacement doses of testosterone increase fat-free mass and muscle size
and strength in hypogonadal men. Whether androgen replacement in wasting
states characterized by low testosterone levels will have similar anabolic
effects remains to be studied."
----
Pete