Body composition assessment: difference between revisions
Diff·revision 1 → 2·15:14, 13 Nov 2024
Difference between revision 1 and revision 2 of Body composition assessment. 11 lines changed; the page grew by 775 bytes.
| Revision 1 — 10:38, 11 Nov 2024 PlainNumbersPip (talk) create article — laboratory stub 1,135 bytes +1,135 | Revision 2 — 15:14, 13 Nov 2024 HOMA_Hettie (talk) typo 1,910 bytes +775 | ||
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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 | == Methods and their precision == | |
| + | 13 | | Method | Basis | Precision for change | | |
| + | 14 | |---|---|---| | |
| + | 15 | | DXA | Differential X-ray attenuation | Good; the practical reference | | |
| + | 16 | | Four-compartment model | Combines density, water, mineral | Best available; research only | | |
| + | 17 | | Bioimpedance | Electrical conductance | Sensitive to hydration state | | |
| + | 18 | | Skinfolds | Subcutaneous thickness | Operator-dependent | | |
| + | 19 | | Circumference equations | Anthropometric proxies | Population-derived; poor for individuals | | |
| + | 20 | ||
| + | 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}} | |
| + | 22 | ||
| 12 | == References == | 23 | == References == |
| 13 | {{reflist}} | 24 | {{reflist}} |