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Clinical · Special populations

Older adults, sarcopenia risk, and the trade-off nobody quantifies — the long version

BV
b.vestergaardTL214 Jul 2025#1

Older adults, sarcopenia risk, and the trade-off nobody quantifies — the long version — setting out what I have, and where I think it stops being reliable.

A narrow question about Older adults, deliberately narrow, because the broad version has been asked here four times and produced four long threads and no answer.

One question, stated units, stated method, and what I have already ruled out.

1 like 12mo
DT
dexa_twice_yearlyTL3Regular20 Jul 2025 · edited#2

Older adults has been discussed here with more heat than it deserves, mostly because two definitions have been in play the whole time.

0 likes 12mo
MB
m.balogunTL224 Jul 2025#3
b.vestergaard, post #1: Older adults, sarcopenia risk, and the trade-off nobody quantifies — the long version — setting out what I have, and where I think it stops being reliable. A narrow question about Older adults, deliberately narrow, because the broad version has been asked here four times and produced four long threads and no answer. One question, stated… Go to post

A note on scope: what I am saying about Older adults applies to the case in the first post and I would not extend it further without checking.

19 likes in reply to #1 12mo
UC
unit_conversionTL3Regular28 Jul 2025#4

Post #3 answers the question as asked. The question underneath it is different.

The most useful contribution here is usually a citation to whichever published document comes closest, with a plain statement of how far it is from the question.

Happy to expand any of that if it is the useful part.

8 likes 12mo
RV
r.vukovicTL21 Aug 2025#5

I think the Older adults question is answerable and has not been answered, which is a more optimistic position than most of this thread.

2 likes 12mo
TP
tracked_parcelTL2Regular4 Aug 2025#6
m.balogun, post #3: A note on scope: what I am saying about Older adults applies to the case in the first post and I would not extend it further without checking. Go to post

Adding a null result on Older adults. I looked, carefully, and found nothing, and null results deserve posting precisely because they never are.

0 likes in reply to #3 12mo
SB
s.balogunTL27 Aug 2025#7

Coming back to post #3, because the follow-up matters more than the original answer.

Hypoglycemia risk: in people already on insulin or sulfonylureas, adding a GLP-1 agonist requires insulin dose reduction and close monitoring for hypoglycemia. This is manageable with attention.

I would want a second opinion before relying on that.

26 likes 12mo
KO
k.otieno_statsTL3Statistician10 Aug 2025#8

Post #7 is right about the mechanism and I think understates the practical bit.

What I would tell a new member reading about Older adults for the first time: the confident posts are not the reliable ones, and the reliable ones are longer.

12 likes 12mo
NI
n.ibarraTL213 Aug 2025#9

No disagreement from me. Posting only so the question does not look ignored.

0 likes 11mo
SS
system_suitabilityTL3Analytical chemist16 Aug 2025#10

Adding the measurement that post #7 says would settle it.

Distinguishing three things in the Older adults discussion that keep getting used interchangeably: the observation, the proposed mechanism, and the recommendation that gets attached to both.

20 likes 11mo
SD
s.dziedzicTL218 Aug 2025#11
n.ibarra, post #9: No disagreement from me. Posting only so the question does not look ignored. Go to post

Post #8 answers the question as asked. The question underneath it is different.

Older adults were included in the trials in smaller numbers than their share of the eventual population, so precision in that subgroup is poor.

Speaking for myself and not for anyone else who has posted here.

24 likes in reply to #9 11mo
SC
so.cardosoTL221 Aug 2025#12

I disagree with the framing of Older adults above, and I think it is a substantive disagreement rather than a terminological one. Setting out why, so it can be checked.

The reasoning depends on an assumption that is doing a lot of work and is never stated. If the assumption holds, the conclusion follows. I do not think it holds generally.

0 likes 11mo
NP
n.petrovTL224 Aug 2025#13

Speaking only to Older adults as I have actually seen it, rather than as it is usually described: the effect is real, it is smaller than the thread suggests, and the variance between people is larger than the effect.

1 like 11mo
BN
b.nilsenTL226 Aug 2025#14
n.ibarra, post #9: No disagreement from me. Posting only so the question does not look ignored. Go to post

Being outside the studied population does not mean a treatment is unsafe. It means the usual evidence is not available and the reasoning has to be explicit.

7 likes in reply to #9 11mo
NL
n.laurentTL229 Aug 2025#15

Fine by me. I had wanted a stronger conclusion and there is not one available.

33 likes 11mo
CR
compounding_ruthTL4Pharmacist31 Aug 2025#16

Coming back to post #14, because the follow-up matters more than the original answer.

Adolescents: a distinct evidence base exists. The compounds are not approved for routine adolescent obesity but are being studied. Adolescent physiology and psychology differ from adults' in ways that matter for this medication class.

A weak preference rather than a position.

0 likes 11mo
VB
va.baptistaTL23 Sep 2025#17

Practical note on Older adults: write down what you expect before you look. The number of times I have found what I went looking for is higher than chance would allow.

3 likes 11mo
TV
t.vasquezTL4 Moderator5 Sep 2025#18
system_suitability, post #10: Adding the measurement that post #7 says would settle it. Distinguishing three things in the Older adults discussion that keep getting used interchangeably: the observation, the proposed mechanism, and the recommendation that gets attached to both. Go to post

Older adults is one of those subjects where the general answer and the answer for a specific case diverge, and the thread will go in circles until someone says which one is being asked for.

11 likes in reply to #10 11mo
CN
c.niemelTL3Regular8 Sep 2025 · edited#19

Body weight at the extremes of the studied range affects exposure and the trials rarely reported enough to say by how much.

12 likes 11mo
KH
k.haddadTL210 Sep 2025#20

On Older adults, the part that usually goes wrong is that the question is asked as though it has one answer. It has a range, and the width of the range is the interesting bit.

If you can post the two or three numbers you are working from, several people here will check the arithmetic rather than argue about the conclusion.

25 likes 11mo
T
TamburelloTL2Member13 Sep 2025#21

Coming back to post #19, because the follow-up matters more than the original answer.

Older adults is a question about a distribution, not about a value, and treating it as a value is what produces the confident wrong answers.

0 likes 10mo
LL
l.lundgrenTL215 Sep 2025#22
va.baptista, post #17: Practical note on Older adults: write down what you expect before you look. The number of times I have found what I went looking for is higher than chance would allow. Go to post

Nothing in this subcategory is medical advice and the questions asked here are precisely the ones that need an individual assessment.

18 likes in reply to #17 10mo
CE
crossover_entryTL3Regular17 Sep 2025 · edited#23
n.petrov, post #13: Speaking only to Older adults as I have actually seen it, rather than as it is usually described: the effect is real, it is smaller than the thread suggests, and the variance between people is larger than the effect. Go to post

Older adults: sarcopenia risk is higher, polypharmacy is common, and the clinical trials did not enroll many people over 75. Extrapolating to very old people is extrapolating beyond the data.

The part I am sure of is shorter than the part I have written.

4 likes in reply to #13 10mo
LV
l.vermeulenTL219 Sep 2025#24

This follows post #23 rather than contradicting it.

Genuine question rather than a rhetorical one: has anyone here actually observed Older adults, as opposed to read about it? The thread is long and I cannot tell.

0 likes 10mo
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NardoneTL2Member22 Sep 2025#25

I had written a reply contradicting post #23 and deleted it. Here is what survived.

Adolescents: a distinct evidence base exists. The compounds are not approved for routine adolescent obesity but are being studied. Adolescent physiology and psychology differ from adults' in ways that matter for this medication class.

The literature is thinner on this than the confidence in the thread implies.

26 likes 10mo
TV
t.vargaTL224 Sep 2025#26
va.baptista, post #17: Practical note on Older adults: write down what you expect before you look. The number of times I have found what I went looking for is higher than chance would allow. Go to post

Following this. I have the same question and no better information than the first post.

12 likes in reply to #17 10mo
AK
a.kwiatkowskiTL2Member26 Sep 2025#27

Dedicated trials in under-studied populations are the only real remedy and several are ongoing, which is worth saying rather than speculating.

2 likes 10mo
NK
n.kaufmannTL228 Sep 2025#28
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ThibodeauTL3Regular1 Oct 2025#29

On Older adults I would separate what is worth knowing from what is worth acting on. The first list is long and the second is short, and conflating them is how threads get heated.

19 likes 10mo
LD
l.dialloTL23 Oct 2025#30

Post-surgical populations, particularly after procedures affecting the gastrointestinal tract, interact with a delayed-emptying mechanism in ways that need specialist input.

That is all I can say without guessing.

8 likes 10mo