[dcgm]

If you spent a lot of time training indoors, feel free to ignore this post, but otherwise consider the possibility that you may be dealing with a heat issue. If you don’t have a giant floor fan pointed right at you and maybe a couple of windows open or the a/c cranked, the heat buildup with indoor cardio is just crazy and will absolutely change the relationship between HR and pace over the course of an hour.

[dcgm]

the rate of ventilation (volume of air inhaled and exhaled in a minute) increases fasted than than the rate oxygen is extracted by your muscles (VO2).

I think this was a misunderstanding on my part–I didn’t quite realize that VT looks at relative rate rather than absolute rate (and even some reasonably erudite sources aren’t very clear on this point.). Thanks.

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