Real ChatGPT answer · index seedf7Rmw68x1CYcompleteConsumer electronics · wearablesinformational

How do running watches determine your VO2 max during a marathon training block and what factors cause these estimates to fluctuate?

ChatGPTgpt-62 queries11/1/2026
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SEED QUERY
How do running watches determine your VO2 max during a marathon training block and what factors cause these estimates to fluctuate?
2 real searches · 1 real-search pass
how Garmin estimates VO2 max running heart rate pace factors affecting estimates heat fatigue terrain officialGoogle ↗
OBSERVED
COROS running fitness VO2 max estimate algorithm heart rate pace officialGoogle ↗
OBSERVED

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Classifying 2 queries…

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ChatGPT2 real searches · gpt-6
how Garmin estimates VO2 max running heart rate pace factors affecting estimates heat fatigue terrain official Google ↗
COROS running fitness VO2 max estimate algorithm heart rate pace official Google ↗

Queries

2 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
how Garmin estimates VO2 max running heart rate pace factors affecting estimates heat fatigue terrain official
OBSERVED
Google ↗
AI Mode ↗
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of 1
COROS running fitness VO2 max estimate algorithm heart rate pace official
OBSERVED
Google ↗
AI Mode ↗
————1x
of 1