Aerobic Control – Peak Phase 1 | Week 1 | Run 2

My Road to TOWaterfront 42K


Another cool September morning, and the aerobic focus was clear: stay in Z2 and let the legs tick along. I kept cadence consistent and watched HR climb and settle with the hills. This one was about patience and rhythm.


šŸ“Š Metrics at a Glance

  • Duration: 45:07
  • Distance: 6.72 km
  • Average Pace: 6:43/km (10:49/mi)
  • NGP: 6:26/km
  • Calories: 594 kcal
  • Elevation Gain/Loss: 157 m / 156 m
  • Average HR: 146 bpm | Max HR: 160 bpm
  • Pa:HR: 5.09%
  • rTSS / hrTSS: 71 / 50
  • IF (pace): 0.92 | IF (HR): 0.78
  • Cadence: 165 spm avg | Max 176 spm
  • VAM: 209 m/h (ā‰ˆ 1.04 W/kg)

šŸ“¦ What the Numbers Say

  • Pa:HR (5.1%) is right on the aerobic stability line – efficient given the climbing.
  • NGP (6:26/km) shows you worked a bit harder than raw pace implies.
  • HR sat comfortably in mid-Z2, with only brief touches higher on climbs.
  • Cadence (165 spm) remained consistent, keeping form economical.

🧢 Coach’s Corner

Execution vs Plan
Planned as 45 minutes steady in Z2. āœ”ļø Executed perfectly: 45:07 on the watch, with pace, cadence, and HR right where they should be.

Performance Quality
Quality was strong: you balanced terrain with discipline, and Pa:HR was kept well below 6%, which shows aerobic control.

Advisability
Completely advisable – you didn’t overreach. A solid aerobic base session that complements the intensity of Run 1.

Hilliness Impact
157 m of climbing made this a hilly aerobic run, but HR never spiked out of control. NGP and VAM confirm you handled the terrain smoothly.

Efficiency Check
Compared to early September’s baselines, your Pa:HR is down significantly. Aerobic efficiency is improving even in hillier terrain – exactly the trend we want moving into Peak Phase.

Takeaway
This was a steady, disciplined aerobic run: efficient, controlled, and right on target for Peak Phase Week 1.


Conclusion

Peak Phase isn’t only about speed – it’s also about aerobic control. Today’s run added another brick to the aerobic wall, proving the foundation is solid.

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