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ENHow to Start With Interval Training (Beginner-Friendly Guide)
1. Start Small and Build Up
If you’re new to interval training, begin with shorter intervals like 6 repetitions of 400 meters. These are easier to pace and recover from compared to longer ones. Over time, you can increase the number of reps — for example from 6 × 400m to 10 × 400m as your fitness improves. Once you're comfortable with that, you can add longer intervals like 600m, 800m, 1000m, and 1500m as part of your workouts.
2. Why Interval Training?
Interval training alternates between faster running and easier recovery jogging. Because you run short bursts at higher intensity, you can spend more time near your race pace or aerobic limits compared to a steady run. This stresses your cardiovascular system in a way that improves speed and overall conditioning.
3. Warm-up!!!
Always warm up before doing intervals with at least 10–15 minutes of easy running and mobility exercises. After your intervals, do a proper cooldown to help recovery and reduce injury risk.
Heart Rate and Interval Training
Training by heart rate helps ensure your effort is at the right intensity, especially once you move beyond “just go fast.” Here’s how heart rate zones generally work for runners:
• Zone 1–2 (Easy)
Easy jogging or warm-ups — you can talk comfortably.
• Zone 3 (Moderate)
Slightly harder, harder to hold a conversation.
• Zones 4–5 (Hard / Interval Zones)
These are higher intensities used during intervals: your heart rate might be around 87–93% of max for anaerobic intervals and even up to 95–100% for very intense efforts. Training in this zone improves VO₂max and speed endurance.
Example Heart Rate % Targets for Interval Training:
Short intervals (~400m): near 95–100% max HR
Medium intervals (~800–1000m): 90–95% max HR
Longer intervals (longer than 1000m): 85–92% max HR
Keep in mind that heart rate responds slightly slower than pace, so it’s less reliable on short distances.
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