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c/glp1muscle·posted 24 days ago by u/maren_ibarra

[Discussion] the sarcopenia question nobody funded properly

Discussion

The title is the argument: the sarcopenia question nobody funded properly. Here is the rest of it.

Nothing here is a training or nutrition prescription. Targets and programmes are matters for somebody who knows your history and your training background.

Reduced appetite makes hitting a protein target a logistics problem rather than a motivation problem, which is why the practical advice here is about timing and food choice rather than willpower.

Strength retention is an imperfect but free longitudinal proxy: it is affected by neural factors and by being in a deficit, so it tracks tissue change loosely rather than exactly.

Would rather be corrected in public than confident in private.

240 up / 74 down76% upvoted15 commentsid 5kc0gb5 Jul 2026

15 comments

14 in this archive, depth 5

best — the order this archive was captured in

u/first_pen_fear31 points·23 days ago

protein and resistance training, that is the entire intervention

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u/dexa_twice_yearlyMOD18 points·23 days ago

Removed a prescriptive nutrition target aimed at another member. Describe your own intake instead.

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u/rania_salinas35 points·23 days ago

protein and resistance training, that is the entire intervention

Adding the free proxy — track a few lifts monthly. It costs nothing and it is longitudinal.

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u/greta_lokken9 points·23 days ago

grip strength and lift numbers are cheap longitudinal markers

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u/amylin_amyamylin6 points·23 days ago

Small fix — that is fat-free mass, not muscle mass. The scan cannot separate them the way the post assumes.

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u/zeynep_villalobos20 points·22 days ago

DEXA has a meaningful coefficient of variation, and it differs between machines and protocols. Comparing scans from different clinics adds a systematic offset that is invisible on the report.

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u/trialwatch_theotrial nerd6 points·22 days ago

DEXA has a meaningful coefficient of variation, and it differs between machines and protocols.

Disagreeing with this line: rate alone does not preserve lean mass. The training does.

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u/noor_ivaturi18 points·22 days ago

Careful, that is a nutrition prescription aimed at another member and this board does not do those.

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u/incretin_ivypharmacology14 points·22 days ago·edited

Correction: those scans are from different machines, and the difference you are describing is within the measurement error.

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u/intent_to_treat-37 points·22 days ago

That protein figure is grams per day, not grams per kilogram. Different claim entirely.

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u/lina_bruun9 points·22 days ago

I would not change the programme on the strength of one scan. The measurement error is larger than the effect you are reacting to.

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u/diego_iyer13 points·22 days ago

Kept the same programme for a year instead of changing it every six weeks. That was the change that worked.

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u/emil_okwuosa4 points·21 days ago

FFMI is a ratio and it moves when either term moves

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u/hana_lehtinen3 points·21 days ago

FFMI is a ratio and it moves when either term moves

emil_okwuosa is right that protein becomes a logistics problem when appetite drops.

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About c/glp1muscle

Lean-mass retention during rapid weight loss: protein targets, resistance-training minimums, DEXA and BIA measurement reality, FFMI tracking, and the sarcopenia question that nobody funded a proper trial for.

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