80/20 ENDURANCE BLOG

8020 Endurance Hero

Letters to the Coaches: Alignment of Power Zones and 80/20 Heart Rate

By Matt Fitzgerald | November 27, 2017

David, I am pushing through first weeks with Garmin + Stryd to track it. I noticed that my power zone…

8020 Endurance Hero

Letters to the Coaches: Trouble Staying in Zone 1 HR

By Matt Fitzgerald | November 8, 2017

Hi Guys, I am planning buying 80/20 program (not sure in 1/2 marathon or marathon) but I want to prepare…

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