The Most Accurate Way To Find ZONE 2 | Arnar Lárusson

Anar Larsson from Tymewear explains why heart rate, pace, power, and even lactate can mislead runners when trying to find their real physiological Zone 2. They often end up training in Zone 3 instead. We talk about VT1, VT2, ventilation, fat oxidation, durability, and why many endurance athletes accidentally train too hard even when they think they are doing easy aerobic training. 🫁 Save $100 on Tymewear Pro Training MembershipCode: E-LABTW26👉 https://www.tymewear.com/E-LABTW26🫁 10% off Isocapnic BWB DeviceCode: JusmanSo 👉 https://shop.isocapnic.com?sca_ref=10462834.lsRLwaoT7WUNdYI🏃 5K, 10K, Half & Full Marathon Training Plans👉 https://theendurancelab.run/training-plans🎓 Exclusive Discounts & Resources👉 https://theendurancelab.run/exclusive-discountsIn this episode:• Why many runners are not really in Zone 2• Why heart rate can drift without your physiology changing• Why ventilation may be a better marker of intensity• How VT1 and VT2 define your real training zones• Why fat oxidation matters for endurance performance• How to improve durability and delay fatigue• Why breathing muscles can be trained• How Tymewear Vital Pro measures ventilation in real timeConnect with The Endurance Lab:📩 Email: jusman@theendurancelab.runChapters:00:00 Are You Really Zone 2?03:00 What Zone 2 Means06:02 Ventilation vs Lactate10:32 Why Heart Rate Misleads15:20 Measuring Physiological State22:25 Why Generic Zones Fail26:25 Power Needs Physiology29:11 Zone 3 Stagnation30:17 Anar’s Background34:00 Ventilation as Ground Truth37:39 Ventilation vs Heart Rate39:41 How Tymewear Measures Breathing45:26 Finding VT1 and VT250:59 Where Ventilation Fails56:04 Breathing Rate vs Tidal Volume58:36 Tymewear Vital Pro1:03:57 Training in Heat1:07:49 What Is Durability?1:11:28 Other Real-Time Tools1:13:48 Stress and Breathing1:14:54 Training Breathing Muscles1:17:13 ISOCapnic BWB#runningover40 #marathontraining #zonetwotraining #heartratetraining #endurancetraining