Again in the fitness center.
- Treadmill at 2% grade
- Pace at 9.0 km/h
The idea was to mimic a hard 60′ erg session. Typical my HR will rise slowly through these types of workouts and finish up in the low 170s. I was having all kinds of HR sensor troubles today. Not sure why. I thought it was just a contact issue since it seemed to get better when I would reposition the strap on my chest, but eventually, around 55′, the whole wahoo fitness app crashed on me. When I restarted it, it seemed like the readings were much better behaved, so maybe the app was just in a unhappy state before it died. I think the high HRs recorded are accurate and the low ones are erroneous. The red line is my best guess as to what the HR was actually doing.
I was starting to really struggle in the last 15 minutes, and at 60′, with about 1000m to go, I needed to back off the pace. I slowed down to 8mph and that took a lot of the pressure off.
The training effect was basically what I was looking for. Push HR up into the TR zone in the last third of the workout and work on just grinding it out.
Tomorrow: Long and slow. I will probably do a fitness center triathlon. 4 x 20′ / 1′ rests with a HR cap of 150.