Body composition assessment: difference between revisions
Diff·revision 4 → 5·21:27, 11 Dec 2024
Difference between revision 4 and revision 5 of Body composition assessment. 7 lines changed; the page grew by 1,286 bytes.
| Revision 4 — 01:31, 1 Dec 2024 CoI_Corin (talk) expand §Lean mass loss during weight reduction 1,910 bytes ±0 | Revision 5 — 21:27, 11 Dec 2024 UACR_Ulric (talk) correct the analyte name to the recommended nomenclature 3,196 bytes +1,286 | ||
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| 10 | The reference methods are dual-energy X-ray absorptiometry and multi-compartment models combining several measurements. Field methods — bioimpedance, skinfolds, circumference-based equations — are more accessible and considerably less precise.{{r|heymsfield2015}} | 10 | The reference methods are dual-energy X-ray absorptiometry and multi-compartment models combining several measurements. Field methods — bioimpedance, skinfolds, circumference-based equations — are more accessible and considerably less precise.{{r|heymsfield2015}} |
| 11 | 11 | ||
| + | 12 | The question this measurement is usually asked in this field is how much of the weight lost under incretin therapy is lean mass, and whether the proportion differs from that seen with other forms of caloric restriction. See [[Sarcopenia]] and [[Lean mass preservation]].{{r|wilding2021}} | |
| + | 13 | ||
| 12 | == Methods and their precision == | 14 | == Methods and their precision == |
| 13 | | Method | Basis | Precision for change | | 15 | | Method | Basis | Precision for change | |
| ⋮ | ⋮ | ||
| 21 | Bioimpedance is the method most often used outside research and the one whose limitations are least appreciated. It infers composition from conductance, which depends on total body water; changes in hydration produce apparent changes in lean mass that did not occur.{{r|heymsfield2015}} | 23 | Bioimpedance is the method most often used outside research and the one whose limitations are least appreciated. It infers composition from conductance, which depends on total body water; changes in hydration produce apparent changes in lean mass that did not occur.{{r|heymsfield2015}} |
| 22 | 24 | ||
| + | 25 | 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}} | |
| + | 26 | ||
| 23 | == References == | 27 | == References == |
| 24 | {{reflist}} | 28 | {{reflist}} |
| 25 | <ref name="heymsfield2015">Heymsfield SB, Gonzalez MC, Shen W, Redman L, Thomas D. "Weight loss composition is one-fourth fat-free mass: a critical review and critique of this widely cited rule." ''Obesity Reviews'' 15(4):310–321 (2014). PMID 24447775.</ref> | 29 | <ref name="heymsfield2015">Heymsfield SB, Gonzalez MC, Shen W, Redman L, Thomas D. "Weight loss composition is one-fourth fat-free mass: a critical review and critique of this widely cited rule." ''Obesity Reviews'' 15(4):310–321 (2014). PMID 24447775.</ref> |
| + | 30 | <ref name="wilding2021">Wilding JPH, Batterham RL, Calanna S, et al. "Once-weekly semaglutide in adults with overweight or obesity." ''New England Journal of Medicine'' 384(11):989–1002 (2021). PMID 33567185.</ref> | |
| + | 31 | <ref name="ada2024">American Diabetes Association. "Standards of Care in Diabetes." ''Diabetes Care'' 47(Suppl 1) (2024).</ref> | |
| + | 32 | <ref name="rubino2021">Rubino D, Abrahamsson N, Davies M, et al. "Effect of continued weekly subcutaneous semaglutide vs placebo on weight loss maintenance (STEP 4)." ''JAMA'' 325(14):1414–1425 (2021). PMID 33755728.</ref> | |
| 26 | 33 | ||
| 27 | {{DEFAULTSORT:Body composition assessment}} | 34 | {{DEFAULTSORT:Body composition assessment}} |