Need some advice from someone who has had this experience:
-Been exclusively running under aerobic threshold of 128, my VT1 from a metabolic cart test for 3 months to address aerobic deficiency. Averaging 45 mi/week. VT1 matched my perception of breathing changes.
-VT1 now feels like it is somewhere around 130-132. Breathing becomes more rapid and nose breathing becomes difficult.
-Recently bought a lactate plus meter. Did a treadmill test (attached) and do not get to 1 mmol above baseline until 150bpm. Have completed 3-4 outside runs since the test w/ last 5-6 mins sitting at 140-142bpm with lactate levels at 0.9-1.1 mmol at 1 min after the runs. Lactate plus is working and has been calibrated against the high and low standards. Following all instructions. Feel the data is solid.
Lactate clearly indicates AeT is in the low 150s now. Cannot nose breath at that heart rate.
Plan to continue 3 more months of base training to finish addressing aerobic deficiency before adding AnT work. When setting the top of my new aerobic zone, should I base it on the lactate results and spend more time in the high 140s, or use what clearly feels like my VT1 and train more in the low 130s?
Have read that the VT1 and lactate derived AeT should be pretty close since VT1 is a reflection of the metabolism.
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