Äldre har lika lätt att få muskelmassa som yngre

[biffen]

Because of the scarcity of data available from direct comparisons of age and gender groups using the same relative training stimulus, it is unknown whether older individuals can increase their muscle mass as much as young individuals and whether women can increase as much as men in response to strength training (ST). In addition, little is known about whether the hypertrophic response to ST is affected by myostatin genotype, a candidate gene for muscle hypertrophy.

Aging does not affect the muscle mass response to either ST or detraining, whereas gender does, as men increased their muscle volume about twice as much in response to ST as did women and experienced larger losses in response to detraining than women. Young men were the only group that maintained muscle volume adaptation after 31 weeks of detraining. Although myostatin genotype may not explain the observed gender difference in the hypertrophic response to ST, a role for myostatin genotype may be indicated in this regard for women, but future studies are needed with larger subject numbers in each genotype group to confirm this observation.

Effects of Age, Gender, and Myostatin Genotype on the Hypertrophic Response to Heavy Resistance Strength Training
Biological Sciences and Medical Sciences 55:M641-M648 (2000)
Frederick M. Iveya,b, Stephen M. Rotha,c, Robert E. Ferrellc, Brian L. Tracya,d, Jeffrey T. Lemmera,e, Diane E. Hurlbuta, Gregory F. Martela,f, Eliot L. Siegelg, James L. Fozardh,i, E. Jeffrey Metterh, Jerome L. Flegh and Ben F. Hurleya

Rätt intressant studie som menar att åldern inte skulle spela någon roll i att bygga muskelmassa. Vad tror vi om det?

[kbick]

Det tror vi inte på . Testosteron-nivåerna sänks med åldern. Bäst att bygga muskler i tonåren då det är högst koncentration.