How To Master Zone 2 As A Triathlete

9 Apr 2025 · 72 min
Episode

9 Apr 2025 · 72 min

0:00

Joe Friel explains how triathletes should build aerobic fitness with a 5:2 weekly structure: five easy days, two hard. He emphasizes Zone 1-2 work for the first two years, treats Zone 2 as a blend rather than a fixed number, and uses a stamina test of two 20-minute Zone 4 efforts to measure aerobic decline in older athletes.

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