This season I have really embraced the Zone 2 mindset. In a nutshell, that training philosophy tells me to spend most of my ride time at a moderately low level of intensity to maximize fat oxidation and to increase mitochondrial density. Why I need to maximize fat oxidation should be obvious even to the least critical observer, and I dropped 6.2 pounds in June, so the plan seems to be working. Whether I increased mitochondrial density last month is less certain–I suppose I would have needed sophisticated lab tests at the beginning and end of the month to know for sure–but I feel like I must have, because I followed the advice of the experts. And increased mitochondrial density means increased energy capacity at the cellular level. If you could get it from a pill, then you would swallow the whole bottle.
But riding hour after hour in Zone 2 is an ego check. You know you could go faster and sometimes you would like for other people to know that too. The joke is on you, though, if you give in to pride. When you leave Zone 2, even briefly, it takes a while for your body to go back into maximum fat oxidation mode. During that interval, your heart rate says Zone 2 but your muscles say it’s still time to dip into their glycogen stores.
If you follow my workouts on Garmin Connect, then you know I have been doing a lot of slow rides on the Eisenbahn State Trail. Statistically, these rides have been unimpressive: 90 to 120 minutes at 13-14 mph. On Tuesday, when I took my road bike out for the first time this year, it was something of a relief to find that I could ride faster.
A much bigger test came earlier today: the Thursday evening West Bend group ride. I had not done one since last year, and I didn’t know how well I was going to perform. But on familiar roads and in familiar company–there were 10 of us–I did my fastest ride since August 29, 2024. Uncoincidentally, that also was a Thursday evening West Bend group ride. Ego checks are fine, even essential, when the training plan calls for Zone 2. But ego was prominent this evening and I succeeded in not looking like a schmuck. I was grateful for the compliments of friends with whom I had not ridden since before my hip replacement surgery in November. I didn’t need special accommodations; I was just one of the guys, which is exactly what I wanted to be.
So, am I all the way back to pre-injury form? I don’t know, but my trajectory has been on a steady upward swing since the beginning of June.