I did a VO2max + lactate test the other day hoping to get a clue what my AT was. Both tests were conducted while walking and jogging on a threadmill. I suspect my lactate level reached 4 mmol/L long before 4 minutes had passed. Results:
- VO2max (couldn't reach it due to dizziness) at 07:30: 46,8 ml/kg/min. HR was at 204 bpm.
- Lactate baseline 1,4 mmol/L: at 04:00 it had increased to 4,2 mmol/L while jogging at 7 km/h. HR was 174 bmp.
- Lactate levels increased to 9,7 mmol/L until the test ended at 13:00.
The VO2"max" value places me in the "good" category, indicating that my lungs are functioning well. The therapist who conducted the test suspected I was able to reach an even higher value, but something else stood in my way. I'm suspecting my POTS/ortostatic hypertension in combination with high levels of lactic acid, although the latter I barely noticed. I've always had a high threshold for pain and discomfort. What seemed to surprise the instructor was my body and face not gasping or looking worn out. Of course my partner PEM kicked in after an hour or so. I had a throbbing headache, my legs were awfully stiff, and I struggled to keep my neck and head up while doing research on my laptop. Day1 after the test I woke up with a stiff neck, fingers, underarms, legs, hips, etc. Along with a feeling of having been hit by a train. Day 2 (48 h later), which is today, is definitely the worst so far.
I'm contemplating doing another test of my lactate threshold, but this time measuring at baseline, 01:00, 02:00 and 03:00 too. Any comments on why I seem to be accumulating lactate, but have well functioning lungs?