Body composition assessment: difference between revisions
Diff·revision 9 → 10·00:31, 21 Feb 2025
Difference between revision 9 and revision 10 of Body composition assessment. 6 lines changed; the page grew by 707 bytes.
| Revision 9 — 18:30, 1 Feb 2025 eGFR_Esme (talk) add the standardisation programme the assay is traceable to 3,353 bytes ±0 | Revision 10 — 00:31, 21 Feb 2025 A1c_Alder (talk) rm the extrapolation from a research assay to a clinical one 4,060 bytes +707 | ||
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| 1 | {{Infobox method | 1 | {{Infobox method |
| 2 | | name = Body composition assessment | 2 | | name = Body composition assessment |
| + | 3 | | subtitle = Measurement | |
| 3 | | image = body-comp.svg | 4 | | image = body-comp.svg |
| 4 | | caption = Fat and lean compartments change in different proportions during weight loss. | 5 | | caption = Fat and lean compartments change in different proportions during weight loss. |
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| 26 | 27 | ||
| 27 | For tracking change in one person, the same method on the same device under the same conditions is worth more than a nominally better method used inconsistently — the same principle that governs a [[Baseline laboratory panel|laboratory baseline]].{{r|ada2024}} Composition measured across a withdrawal period behaves differently again, since the compartments do not regain in the proportions they were lost.{{r|rubino2021}} | 28 | For tracking change in one person, the same method on the same device under the same conditions is worth more than a nominally better method used inconsistently — the same principle that governs a [[Baseline laboratory panel|laboratory baseline]].{{r|ada2024}} Composition measured across a withdrawal period behaves differently again, since the compartments do not regain in the proportions they were lost.{{r|rubino2021}} |
| + | 29 | ||
| + | 30 | == Lean mass loss during weight reduction == | |
| + | 31 | Loss of lean mass accompanies loss of fat mass in essentially every form of substantial weight reduction. Reported proportions vary with method, population and rate of loss, and figures in the region of a fifth to a quarter of total loss are commonly cited for caloric restriction.{{r|heymsfield2015}} | |
| + | 32 | ||
| + | 33 | Whether incretin therapy produces a different proportion is disputed. The trials were not designed to answer it, body composition was a secondary outcome measured in subsets, and the comparison group in most analyses is a placebo arm losing very little weight — which makes the proportional comparison awkward.{{r|wilding2021}} | |
| 28 | 34 | ||
| 29 | == References == | 35 | == References == |