gentle
45-Minute Zone 2 Cardio Session
Zone 2 cardio is the aerobic foundation that all other fitness is built on — consistent moderate-intensity long cardio is irreplaceable.
45 min · Kit: Nothing
The session
- 1Maintain heart rate at approximately 60–70% of maximum throughout (conversational pace — able to speak full sentences)
- 2Any activity: walking, cycling, swimming, rowing, elliptical
- 3Consistent pace; no intervals; 45 minutes continuous
Worth knowing
- Zone 2 is where mitochondrial adaptations happen — the foundation of all aerobic capacity
- You could feel like you are going "too easy" — this is correct
- Most people spend too much time in Zone 3 (moderate/hard) and not enough in Zone 2
- 3–4 Zone 2 sessions per week is the evidence-backed foundation for aerobic health
