Fitness

Zone 2 Cardio Training

Train Smarter, Not Harder — The Zone 2 Method

12 lessons4 modules9h 0m durationbeginner level

Instructor: StretchLearn Faculty

About this course

Zone 2 cardio — steady-state aerobic work at 60–70% of maximum heart rate — is the training intensity most strongly linked to mitochondrial growth, fat oxidation, and long-term cardiovascular health. Despite being called a beginner topic, it is exactly the zone elite endurance athletes spend 80% of their training volume in. This course walks you through the physiology, measurement methods, and programming tools to make Zone 2 the cornerstone of your fitness routine.

Curriculum

Module 1: The Science of Aerobic Zones3 lessons

The Five Heart Rate Zones ExplainedPreview45m
Mitochondria, Fat Oxidation, and Why Zone 2 Works🔒45m
Zone 2 and Metabolic Health Beyond Sport🔒45m

Module 2: Measuring Your Zone 23 lessons

Heart Rate Monitoring Methods and Devices🔒45m
The Talk Test and Rate of Perceived Exertion🔒45m
Tracking Progress with Pace, Power, and Aerobic Decoupling🔒45m

Module 3: Building Your Zone 2 Program3 lessons

The Polarised Training Model🔒45m
Session Structure and Modality Selection🔒45m
A 12-Week Zone 2 Base-Building Plan🔒45m

Module 4: Real-World Application and Long-Term Progress3 lessons

Adjusting Zone 2 for Heat, Altitude, and Fatigue🔒45m
Combining Zone 2 with Strength Training🔒45m
Troubleshooting Plateaus and Sustaining Long-Term Progress🔒45m