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.
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In 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 time
Connect with The Endurance Lab:
📩 Email: jusman@theendurancelab.run
Chapters:
00:00 Are You Really Zone 2?
03:00 What Zone 2 Means
06:02 Ventilation vs Lactate
10:32 Why Heart Rate Misleads
15:20 Measuring Physiological State
22:25 Why Generic Zones Fail
26:25 Power Needs Physiology
29:11 Zone 3 Stagnation
30:17 Anar’s Background
34:00 Ventilation as Ground Truth
37:39 Ventilation vs Heart Rate
39:41 How Tymewear Measures Breathing
45:26 Finding VT1 and VT2
50:59 Where Ventilation Fails
56:04 Breathing Rate vs Tidal Volume
58:36 Tymewear Vital Pro
1:03:57 Training in Heat
1:07:49 What Is Durability?
1:11:28 Other Real-Time Tools
1:13:48 Stress and Breathing
1:14:54 Training Breathing Muscles
1:17:13 ISOCapnic BWB
#runningover40 #marathontraining #zonetwotraining #heartratetraining #endurancetraining
