Two Scales, Two Body Fat Readings: Which Do You Trust?
The same 634 mornings, two scales, 6 to 9 points apart on body fat. What the numbers are good for, and which app setting explains almost the whole gap.
Patrick Lehmann
· 7 min read
Journal
Knowledge for your performance. Discover articles on training science, data analysis, and the latest features of obseed.
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Latest Articles
Gained 1.6 kg Overnight? What Your Scale Is Not Telling You
I weigh myself on two scales every morning. After a poker night, both showed +1.6 kg. What in my data is noise, and when you can see the real direction.
Patrick Lehmann
· 6 min read
New Feature: Ask Claude About Your Training
I ask Claude and ChatGPT about my sleep, HRV and training. Now they also log tags and session details, once I confirm in obseed.
Patrick Lehmann
· 4 min read
Thresholds and Maximum Values: The Who's Who of Diagnostics
VO2max only shows what is theoretically possible, not what your body uses. On your second lactate threshold, not even 72 recognised models agree.
Fabian Kremser
· 7 min read
Performance Test vs. Diagnostic: What Is the Difference?
A test shows you WHAT a body can do. A diagnostic shows you HOW it does it. Why that difference decides whether your Zone 2 is actually a Zone 2.
Fabian Kremser
· 8 min read
New Feature: The Mountain That Never Happened
My watch went for a swim in a fountain and invented about 100 metres of climbing. obseed now corrects errors like this automatically, even in old sessions.
Patrick Lehmann
· 4 min read
New Feature: Not How Hot It Was, But When
obseed now breaks your session into five-minute slices and shows the temperature curve instead of a single average, with a heat load reading per slice.
Patrick Lehmann
· 4 min read
Lab or Wearable, That Is the Question: How Do I Know My VO2max Is Right?
A watch does not measure your VO2max, it estimates it. Why that estimate is surprisingly good for recreational athletes and misses for the very best.
Fabian Kremser
· 5 min read
The Tracker Tango in the Data Jungle: Which Device Should I Believe?
Whoop says rest day, Garmin says threshold training. Why wearables contradict each other, and why your measurement method matters more than who is right.
Fabian Kremser
· 4 min read
New Feature: Log the Fuel Behind Every Session
Attach real sport-nutrition products to each session and capture the exact carbs, sodium, caffeine, and calories you took in, next to what you burned.
Patrick Lehmann
· 3 min read
Measure Twice: Understanding Heart Rate Variability and Using It Right
What HRV really measures, why your nervous system sets the tempo, and why twenty seconds before you hit start decide the data quality of an entire session.
Fabian Kremser
· 5 min read
New Feature: Your Training and Sleep, Now in Your Calendar
obseed now offers a personal iCalendar feed: subscribe once to see your sessions, competitions, and sleep in Apple Calendar, Google Calendar, or Outlook.
Patrick Lehmann
· 2 min read