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A 40-week log with the measurement method stated — does this still hold?

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Solved by dexa_twice_yearly in post #2
Building on the opening post rather than restating it. Offering a way to settle 40-week log rather than another opinion about it. Two measurements, taken the same way, a fortnight apart. If the difference is within the noise, the question was not answerable at this precision.

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LG
lc_gradientTL3Analytical chemist12 Nov 2025#1

A 40-week log with the measurement method stated — does this still hold? I have a specific reason for asking rather than idle curiosity, and the context is below.

Posting a small dataset on 40-week log. It is mine, it is uncontrolled, and the method is stated so it can be discounted appropriately.

What I would like is not agreement but a second dataset collected by someone with no stake in mine. If one exists I would rather read it than argue for this one.

6 likes 8mo
DT
dexa_twice_yearlyTL3Regular Solution7 Jan 2026#2

Building on the opening post rather than restating it.

Offering a way to settle 40-week log rather than another opinion about it. Two measurements, taken the same way, a fortnight apart. If the difference is within the noise, the question was not answerable at this precision.

7 likes 7mo
AV
ai.vukovicTL217 Feb 2026 · edited#3

State the method before the numbers. Same scale, same time of day, same conditions — without that a series is a collection of readings rather than a measurement.

Reading it again, the caveat matters more than the finding.

23 likes 5mo
GP
g.pemberton_ukTL3Regional · UK24 Mar 2026#4
lc_gradient, post #1: A 40-week log with the measurement method stated — does this still hold? I have a specific reason for asking rather than idle curiosity, and the context is below. Posting a small dataset on 40-week log. It is mine, it is uncontrolled, and the method is stated so it can be discounted appropriately. What I would like is not agreement but… Go to post

A plateau over two weeks is usually measurement. A plateau over two months is usually energy balance. The timescale is what distinguishes them.

10 likes in reply to #1 4mo
FY
f.yildizTL227 Apr 2026#5

Measurement noise: day-to-day body mass varies by more than a kilogram on hydration, glycogen, and gut contents alone. A weekly reading is a single noisy sample of a distribution. A seven-day rolling mean of daily readings has much lower noise.

1 like 3mo
W
WendelboeTL2Member28 May 2026#6

Weighing daily and reporting weekly is a better protocol than weighing weekly, because it separates the measurement frequency from the reporting frequency.

0 likes 2mo

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