[Question] FFMI — what am I missing here
FFMI — what am I missing here — that is what I am asking, and I have already read the wiki twice.
On comparing yourself to composition figures from trials.
Published composition data comes from supervised populations with structured protocols, standardised scanning, and analysis populations that have been defined in advance. Your two scans at a local clinic, taken in different states of hydration, are not the same measurement.
Use your own baseline. The question worth asking is whether your own trajectory is going the way you want given what you are actually doing, and the honest answer usually requires measuring protein rather than estimating it and being truthful about training frequency. Neither of those is advice — a programme and a target are things to work out with somebody who knows your history.
Some lean mass loss accompanies weight loss in any deficit. Resistance training and adequate protein intake are the two interventions with the best evidence for limiting the proportion.
DEXA has a meaningful coefficient of variation, and it differs between machines and protocols. Comparing scans from different clinics adds a systematic offset that is invisible on the report.
Tell me where this is wrong. That is the useful part of posting it.
best — the order this archive was captured in
Fat-free mass index is a ratio of fat-free mass to height squared. It moves when either term does, which makes it awkward to interpret during active weight change.
Nothing here is a training or nutrition prescription. Targets and programmes are matters for somebody who knows your history and your training background.
Three scans over eighteen months, same machine, same conditions. Only the third one made the first two interpretable.
Have the lifts held, dropped, or moved around?
What was the rate of weight change over that window?
Protein was the whole problem. Appetite dropped and I was eating well under target without noticing for a month.