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Marco Altini’s Substack

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That's a Wrap for 2025

Heart rate variability (HRV), endurance coaching, training talk, wearables, entrepreneurship, and some ramblings.
READ THE LATEST
[Podcast] 1% Better: HRV, HRV Guided Training and HRV Misconceptions - Dr Marco Altini
A conversation with Xylon van Eyck and David Lipman
 • Marco Altini
[Podcast] Ciclismo KOMpetente - Marco Altini, flessibilità metabolica, nutrizione periodizzata, HRV (ITA)
Una chiaccherata con Mattia Gaffuri
 • Marco Altini
[CoachCorner] The Aerobic Threshold: A Look at Ventilation, Lactate, Heart Rate, Perceived Effort and Substrate Utilization
Today I was in the lab to collect some data around the “aerobic threshold”.
 • Marco Altini
Recent articles and updates [November 2025]
Heart rate variability (HRV), endurance coaching, training talk, wearables, entrepreneurship, and some ramblings.
 • Marco Altini
What HRV Can Or Can’t Tell You About Nutrition
I’m often asked about the relationship between HRV and nutrition.
 • Marco Altini
[Research] Intensity as the Primary Driver of Autonomic Change (In Team Sports Too!)
A new study brings HRV analysis to Basketball players, showing similar patterns to what we have seen in endurance athletes.
 • Marco Altini
[TrainingTalk] Learnings From a Year of Periodized Nutrition and Metabolic Testing
Acute and chronic changes in response to dietary modifications, fat oxidation rates, impact of training vs nutrition, shifts in substrate utilization…
 • Marco Altini
Marco Altini’s Substack
Marco Altini’s Substack
Heart rate variability (HRV), Endurance Coaching, Technology, Life, and other ramblings
My Work
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