So I did a guided LT test today:
https://connect.garmin.com/modern/activity/4002046922?share_unique_id=2
The test came up with 4:41 min/km @ 128 BPM.
The 4:41 might be accurate, but the 128 bpm most certainly is not. My HR I usually >160 when doing 5:30 min/km.
Also I had enough energy to keep going for another round or two at higher pace but test ended.
Is the test broken or did I do anything wrong?
This is the HR chart from your linked workout. This doesn't look like what I'd expect from the results of the guided LT test - so I'm a bit confused about a) what happened and b) why it gave you an output at all.
To work, the analysis needs enough data recorded at various intensities above and below your LT. Think of it like filling buckets if that helps. This can - and often does - happen over the course of a normal run. The guided test should help gradually increase your intensity over time in a way that ensures enough data is collected above and below your LT to get the results.
Hope that helped.
