Muscle Stress in Older People
The Influence of Aging on the Unfolded Protein Response in Human Skeletal Muscle at Rest and after Acute Exercise
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Gene activity doesn’t predict protein levels after exercise
Most people assume if a gene turns on, the corresponding protein increases—but here, changes in UPR gene expression didn’t consistently lead to more UPR proteins like CHOP or BiP.
Practical Takeaways
Keep lifting weights—even if you're older, your muscles can still activate critical repair systems.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Gene activity doesn’t predict protein levels after exercise
Most people assume if a gene turns on, the corresponding protein increases—but here, changes in UPR gene expression didn’t consistently lead to more UPR proteins like CHOP or BiP.
Practical Takeaways
Keep lifting weights—even if you're older, your muscles can still activate critical repair systems.
Publication
Journal
Medicine & Science in Sports & Exercise
Year
2024
Authors
Kelly L. Michie, Hawley E Kunz, S. Dasari, Ian R. Lanza
Related Content
Claims (5)
Older adults with more activity in certain stress-related genes in their muscles tend to have weaker legs, but their heart and lung fitness stays the same — meaning these genes might only affect muscle strength, not overall endurance.
Older people who have a stronger cellular stress response after a workout tend to have stronger muscles, but this link isn't as strong as it is in younger people.
Just because muscle genes turn on after a workout doesn’t mean the proteins they make show up right away—especially for stress-response proteins, and this is true for both younger and older people.
Older adults who seem perfectly healthy may still have stressed muscle cells compared to younger people — this stress shows up as higher levels of certain proteins, even if they’re not weak or sick yet.
Older adults' muscles respond to a tough workout just like younger people's do when it comes to turning on important repair genes — aging doesn’t seem to weaken this part of the body’s recovery system.