I just measured myself on the Tanita body composition machine after a 10 day boozing/bucks party holiday.
Before I went on holiday my body fat had been steadily reducing from 21 down to 15 over a few months.
After the boozing, the machine told me I had not gained or lost any weight, but instead lost 5 kilos of muscle… meaning I had replaced it with 5 kilos of fat…
Seems pretty unlikely no???
Is it even possible to lose 5 kilos of muscle in 10 days?
I assume 5 Kg is about 5% of your body weight, considering that that type of instrument has a 4% error, it’s really meaningless. Take multiple reading at different times of day and take the average. I’m still not sure that you will have a reliable reading.
That said, alcohol and partying is very catabolic and it’s likely you would have had significant muscle loss. 5 Kg does seem like a lot though.
I use an Omron handheld rather than a Tanita. My observed measurements seem to hold within a plus or minus 2.5% range at most, with about a 1% variance being normal.
This is good enough for me because I track daily and use an exponential weighted average with 10% smoothing to calculate the actual number. I found that calipers were more precise but less accurate.
These machines are totally useless crap.
Do you think they can analyze your body composition ?
Bone density ? lean mass ? fats , water… ?
They can’t. They just spit out some info based on statistics.