The LiveArdent Journal · Issue 003 · 6 min read
The Training Plan Was Written for Someone Else
Most plans assume a blank calendar. The physiology is correct. The context is fiction.
By John Byrnes · April 2026
This issue
What to protect when the week compresses.
You spend real time building a training plan — or you buy one, or you download one from the internet. It's solid. Structured. It has the right progression, the right intensity distribution, the right long run mileage.
And then your week shows up. Not the week on the plan. Your actual week. The one with a 7pm all-hands that eats your Tuesday workout. The one where your toddler spikes a fever and you're up until 2am and your Friday long-run alarm feels like a personal insult. The one where the project at work detonates and suddenly your carefully preserved 6am training window is now a 6am triage window.
Most training plans are built for a blank calendar. The physiology is correct. The context is fiction. So the question isn't how to find more hours. It's what to do with the hours you actually have.
The Problem
The blank calendar assumption
Training plans are designed to maximize adaptation across an idealized week. They are not designed to survive contact with real life.
The implicit assumption in most plans — even well-structured periodized ones — is that you'll hit 80–90% of prescribed sessions. That buffer exists. But when life compresses your week from 6 training days to 3, you can't just scale volume proportionally. You need to rethink which sessions are actually doing the work.
Not all sessions are created equal. The research on endurance adaptation is consistent on this: frequency matters less than the quality of the sessions you do run. Work by Seiler and colleagues on intensity distribution in endurance sports has shown repeatedly that the majority of adaptation comes from a small number of high-quality stimulus sessions — not from accumulated easy volume. The easy volume is insulation for the hard sessions. When you can't have both, protect the hard sessions and cut the insulation.
This isn't permission to train less. It's a framework for training smarter when less is what you have.
The Framework
The session hierarchy
When I know a week is going to get compressed, I work backwards from a session hierarchy. For my current phase — focused on 5K/10K speed work — it looks like this:
Session priority framework — speed phase
Protect at all costs: The interval session (track work — this is the physiological point of the entire phase) and the long run (aerobic base, the engine everything else runs on).
Keep if possible, cut if needed: The tempo run (valuable, but the interval session partially covers this stimulus). Strength work (critical for injury prevention, but timing is flexible).
First to go: Easy recovery runs and the second easy run of the week. These accumulate volume — they don't create adaptation.
This hierarchy changes by phase. In a marathon base block, the long run is the session you'd rearrange the week around. In a speed block, it's the intervals. The key is knowing which sessions are generating the adaptation — and when something has to give, giving the right things.
The Method
Building the week backwards
The mistake most people make is trying to fit a full training plan into a compressed week. The right move is to build the compressed week from scratch.
1. Map the real windows. Before writing any workouts, identify where you genuinely have 45–90 uninterrupted minutes this specific week. Not where you hope to have them. Where they actually exist.
2. Place the non-negotiables first. The top two sessions in your hierarchy go into those slots. If you only have two real windows, those are your workouts. That's the week.
3. Fill any remaining windows. A third slot gets an easy run or strength work. A fourth slot, if it exists, is a bonus. If neither exists, neither gets invented.
4. Don't compensate forward. The instinct to make up missed sessions the following week is almost universally wrong. A missed easy run is gone. You don't double the following week to "catch up." That's how you spike your load and end up injured three weeks later without knowing why.
The Long Game
A compressed week isn't a failed week
I used to treat a compressed week as a failed week. If I didn't hit the session count, I spent the rest of the block feeling behind. That framing is wrong, and worth naming directly.
"Consistency across months beats optimization within any single week."
The athlete who hits 70% of planned sessions for 12 straight weeks outperforms the athlete who hits 100% for three weeks and then breaks down — from injury, burnout, or the grinding reality of a life that was always going to include these interruptions.
The goal isn't the plan. The goal is November. And November requires me to still be running in October. A sustainable training week isn't a compromise. For athletes with full lives, it's the entire strategy.
This week's action — one thing, do it before Friday
Map your actual training windows
Map your actual available training windows for this week — not the ones you wish you had, the ones that exist given what's already on your calendar.
Then place your two highest-priority sessions in those slots first. Everything else is bonus.
If you've never done this explicitly, it takes about 10 minutes. It will probably also reveal that your training week has been built on hope rather than reality — and that one shift alone changes how consistently you execute.
Next issue
The Three Goals Are the Same Goal
A 5K PR seven months before a 50-mile ultramarathon — and the performance equivalency math that reframes sub-20, sub-6, and 3:00 as one unified fitness target.
Read Issue 004 →
