Outcomes · Body composition

Revisiting: Bioimpedance and hydration: why the number moves

Outcomes › Body composition data table DXA bioimpedance

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Solved by l.aaltonen in post #3

Visceral fat: DXA does not distinguish visceral (organ-associated) fat from subcutaneous fat. That distinction might matter but requires different imaging to measure.

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s.salgadoTL2 Moderator12 May 2026#1

Posting this under the heading it deserves: Revisiting: Bioimpedance and hydration: why the number moves Everything below is what sits behind that.

Longitudinal report with the method stated, because a number without a method is not a measurement.

Same scale, same time of day, same conditions, 42 weeks. I have also recorded protein intake and resistance-training sessions, both self-reported and both therefore optimistic.

The reason I am posting is a pattern in the middle of the series that I cannot explain and that I suspect is measurement rather than signal.

0 likes 3mo

b.adeyemiTL2 Moderator4 Jun 2026#2

On the opening post — agreed on the reasoning, with one qualification.

Ultrasound: thickness of subcutaneous fat at specific sites. Less standardised than DXA and operator-dependent. Useful as a supplementary measure but not as a primary method.

1 like 2mo

l.aaltonenTL3Regular Solution19 Jun 2026 · edited#3

b.adeyemi, post #2: On the opening post — agreed on the reasoning, with one qualification. Ultrasound: thickness of subcutaneous fat at specific sites. Less standardised than DXA and operator-dependent. Useful as a supplementary measure but not as a primary method. Go to post

Visceral fat: DXA does not distinguish visceral (organ-associated) fat from subcutaneous fat. That distinction might matter but requires different imaging to measure.

10 likes in reply to #2 1mo

This topic was referenced in

Ultrasound and skinfolds: operator dependence in practice — what changed sinceOutcomes › Body composition · 37 replies

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