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  1. #1
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    anabolic effect of testosterone in young and old men
    anabolic effect of testosterone in young and old men


    posted on cuttingedgemuscle by Kml0331


    anabolic effect of testosterone in young and old men
    J Clin Endocrinol Metab. 2004 Nov 23; [Epub ahead of print] Related Articles, Links


    Older Men are as Responsive as Young Men to the Anabolic Effects of Graded Doses of Testosterone on the Skeletal Muscle.

    Bhasin S, Woodhouse L, Casaburi R, Singh AB, Phong Mac R, Lee M, Yarasheski KE, Sinha-Hikim I, Dzekov C, Dzekov J, Magliano L, Storer TW.

    Division of Endocrinology, Metabolism, and Molecular Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059; Division of Respiratory Diseases, Pulmonary Physiology, and Critical Care Medicine, Harbor-UCLA Medical Center, Torrance, CA 90502; Laboratory for Exercise Science, El Camino College, Torrance, CA; Division of Endocrinology, Metabolism, & Lipid Research, Washington University School of Medicine, St. Louis, MO 63110 01-1184 Version 3.

    Although testosterone levels and muscle mass decline with age, many older men have serum testosterone level in the normal range, leading to speculation whether older men are less sensitive to testosterone. We determined the responsiveness of androgen-dependent outcomes to graded testosterone doses in older men, and compared it to that of young men. The participants in this randomized, double-blind, trial were 60 ambulatory, healthy, older men, 60-75 yr of age, who had normal serum testosterone levels. Their responses to graded doses of testosterone were compared with previous data in 61, 19-35 yr old men. The participants received a long-acting GnRH agonist to suppress endogenous testosterone production and 25, 50, 125, 300, or 600 mg testosterone enanthate weekly for 20 weeks. Fat free (FFM) and fat mass, muscle strength, sexual function, mood, visuospatial cognition, hormone levels, and safety measures were evaluated before, during and after treatment. Of 60 older men who were randomized, 52 completed the study. After adjusting for testosterone dose, changes in serum total testosterone (change -6.8, -1.9, +16.1, +49.5, and +101.9 nmol/L, at 25, 50, 125, 300 at 600 mg*wk(-1), respectively) and hemoglobin (change -3.6, +9.9, +20.9, +12.6, +29.4 g/L at 25, 50, 125, 300, and 600 mg*wk(-1), respectively) levels were dose-related in older men and significantly greater in older men than young men (each P < 0.0001). The changes in FFM (-0.3, +1.7, +4.2, +5.6, +7.3 kg, respectively in five ascending dose groups) and muscle strength in older men were correlated with testosterone dose and concentrations, and were not significantly different in young and older men. Changes in fat mass correlated inversely with testosterone dose (r0.54, P < 0.001) and were significantly different in young and older men (P < 0.0001); young men receiving 25 and 50 mg doses gained more fat mass than older men (P < 0.0001). Sexual function, mood, and visuospatial cognition did not change significantly in either group. Frequency of hematocrit >54%, leg edema, and prostate events was numerically higher in older men than in young men. Conclusion. Older men are as responsive as young men to testosterone's anabolic effects; however, older men have lower testosterone clearance rates, higher increments in hemoglobin, and a higher frequency of adverse effects. Although substantial gains in muscle mass and strength can be realized in older men with supraphysiological testosterone doses, these high doses are associated with high frequency of adverse effects. The best trade-off was achieved with a testosterone dose (125 mg) that was associated with high normal testosterone levels, low frequency of adverse events and significant gains in fat-free mass and muscle strength.

  2. #2
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    Nice.

    I always assumed side effects were more frequent in older men but never knew if the gains they made were as good as those of their younger counterparts.

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    Quote Originally Posted by Satan
    Nice.

    I always assumed side effects were more frequent in older men but never knew if the gains they made were as good as those of their younger counterparts.

    I'm getting up in years, and do very long moderate dose cycles, without any noticeable sides. I get bloodwork approx every six months and everything always looks good. I do very few orals though.

  4. #4
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    Quote Originally Posted by liftsiron
    I'm getting up in years, and do very long moderate dose cycles, without any noticeable sides. I get bloodwork approx every six months and everything always looks good. I do very few orals though.

    What about hair loss and prostate health? Do you notice things to be pretty much the same in those areas? How old are you if you don't mind me asking?

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    Quote Originally Posted by Satan
    What about hair loss and prostate health? Do you notice things to be pretty much the same in those areas? How old are you if you don't mind me asking?

    I'm not prone to mpb so I have a full head of hair. Test doesn't seem to bother my prostate but antihistimines do, so I take 320mgs of stadardized saw palmettto extract each day. I'm 48.

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    Anabolic Steroids
    I read all your comment,and i have some few words as a steroid seller. Please do not get my comment wrong,i just want to find a way upon agreement.We and buyers not doing any legal issue,so it is so normal to have some unlucky situations.Normally, a man's metabolism is balanced, with the 'male' or androgenic factors of testosterone and DHT countering, in fact dominating, the 'female' or estrogenic factors of estradiol and other estrogens.and who want to known about effect anabolic.you can get more information my website gymcandy.com/

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