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Sunday, December 4. 2016

Can you gain muscle mass over age 55?


Without heavy regular use, muscle fibers die (never to be recovered) or atrophy (can be recovered with effort). Such is the fate of the middle-aged body. Young people can add new muscle fibers with exertion, old people can not.


In later years, it is easier to improve strength and endurance than bigger muscles.  See discussion.



Posted by Bird Dog at 13:42 | Comments (4) | Trackbacks (0)

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What if PEDs (Performance Enhancing Drugs) are used?
#1 feeblemind on 2016-12-04 14:06 (Reply)
BD, perhaps true for the time being, but there is potential for bringing back Bret Favre to Green Bay in the future.

Restoring Systemic GDF11 Levels Reverses Age-Related Dysfunction in Mouse Skeletal Muscle
http://science.sciencemag.org/content/344/6184/649

Young blood reverses age-related impairments in cognitive function and synaptic plasticity in mice
http://www.nature.com/nm/journal/v20/n6/full/nm.3569.html

http://www.nature.com/news/ageing-research-blood-to-blood-1.16762

https://www.newscientist.com/article/2112829-blood-from-human-teens-rejuvenates-body-and-brains-of-old-mice/
#2 jaybird on 2016-12-04 15:57 (Reply)
closer, if you are a mouse.
#2.1 jaybird on 2016-12-04 16:17 (Reply)
If you consider testosterone to be a PED, then yes.

"Normal" T levels are considered to be 300-2100. That's almost a 3 octave range, and the only hormone considered "normal" over that large a range. The 2100 is a healthy 20 year old,while the 300 is a 70 year old who isn't in a wheelchair.

I once watched an online debate between a proponent of T supplementation and an opponent. When asked if he would do nothing if he was presented with a 25 year old man with a t level of 300, the opponent tap danced all over. The proponent tried to get him to admit that anything under 800 should be considered treatable with t supplementation, but he kept wiggling about considering age.

The proponent said what I was thinking by that point: (paraphrased)
"In other words, you old geezers should just sit in a corner and die quietly."
#3 bud on 2016-12-04 19:28 (Reply)

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