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Journal
Knowledge for your performance. Discover articles on training science, data analysis, and the latest features of obseed.
A watch does not measure your VO2max, it estimates it. Why that estimate is surprisingly good for recreational athletes, and why it misses for the very best.
Whoop says rest day, Garmin recommends threshold training. Why wearables contradict each other, and why picking your measurement method matters more than asking who is right.
obseed now lets you attach real sport-nutrition products to each training session — capturing the exact carbs, sodium, caffeine, and calories you took in, right next to what you burned.
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.
obseed now offers a personal iCalendar feed — subscribe once to see your sport sessions, competitions, and sleep in Apple Calendar, Google Calendar, or Outlook.
On many Garmin watches HRV recording is off by default and gets reset by firmware updates. Here is how to enable it so obseed can analyse your heart rate variability.
Your daily tags now become visual heatmaps. obseed weekly and monthly views reveal supplement gaps, sickness arcs, and caffeine rhythms at a glance.
91 Oura tags flow automatically into obseed — correlating with Garmin, Whoop, Withings, and Wahoo. No double entry. No silos. Your full picture.
Comparing the top HRV apps for runners, cyclists, and triathletes. Oura Gen 3 hits 7.15% MAPE — see how obseed, HRV4Training, Elite HRV, WHOOP, and Garmin Connect stack up on metrics depth and value.
A detailed comparison of sleep tracking accuracy and metrics across Garmin, Oura Ring, and WHOOP. Learn which device gives the most useful sleep insights for endurance athletes.
A practical guide to HRV-guided training for endurance athletes. Learn how to read your morning HRV, when to push hard vs rest, and how to avoid the most common mistakes.
60+ HRV metrics across 9 physiological categories from your wearable. Research-grade analysis: Poincaré, DFA alpha-1, multiscale entropy, personal baseline, and 15-page reports.