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Fredrik Mentzoni

@fredrikmentzoni.bsky.social
107 followers 147 following 18 posts

PhD engineer working at Olympiatoppen, the Norwegian Olympic Sports Center.

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Fredrik Mentzoni @fredrikmentzoni.bsky.social · 16/03/2026
Is there no consensus on how running power should be estimated? This is from an 80 min easy run I did yesterday. Similar perceived intensity would be ~200 W on the bike. Markers are 30s bins (both sources originally sampled at 1Hz).
A Bland-Altman plot comparing running power estimations. It shows that the Garmin Forerunner 965 (with HRM 600) estimates higher power than the Stryd Next Gen Duo, with an average bias of 81 Watts.
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Fredrik Mentzoni @fredrikmentzoni.bsky.social · 18/12/2024
Above or below threshold? Simultaneous measurements of the same blood using two analyzers from the same brand. 1/2
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Fredrik Mentzoni @fredrikmentzoni.bsky.social · 02/12/2024
Want to increase your V̇O₂max? Switching testing equipment might be the easiest way...
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Fredrik Mentzoni @fredrikmentzoni.bsky.social · 25/11/2024
How accurate and precise are handheld blood lactate analyzers? Raincloud plots illustrating the relative difference between four commonly used handheld analyzers and the Biosen C-line stationary analyzer. Pretty (and) informative? 1/2
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Fredrik Mentzoni @fredrikmentzoni.bsky.social · 14/11/2024
Can wearables really unlock the secrets of your health? A discussion on heart rate variability (HRV) +++ with @dsquintana.bsky.social, Marco Altini and Henrik B. Jacobsen. youtu.be/jASGg7PJc2A 🧵1/5
youtu.be
Facts and myths about wearables and HRV
YouTube video by Mind Body Lab UiO
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