If you’ve ever bounced between “I should run more,” “I should do speedwork,” and “I should probably strength train,” you’re not alone.
Coach Mark Hadley lays out a simple framework that works whether you’re brand new to running or chasing big PRs: five tenets that keep training effective, sustainable, and (most importantly) enjoyable.
TL;DR
The five tenets are:
- Consistency (stack training weeks)
- Capacity (build the amount of work you can handle)
- Frequency (run often enough to adapt)
- Mixture (choose the right workouts in the right order)
- Passion (keep running supportive—not stressful)
If you want help applying these to your schedule and goals, you can get matched with a running coach in just a couple minutes.
The 5 Tenets at a Glance
| Tenet | What it means | What it looks like in real life |
| Consistency | Fitness builds when you repeat stress + recovery cycles | Train most weeks of the year, avoid long layoffs |
| Capacity | The total work you can handle (volume or quality) | Gradually build weekly miles or the amount of quality you can absorb |
| Frequency | Your body adapts to what you do most often | Adding a 5th run (even easy) can be a big upgrade |
| Mixture | The right training “ingredients,” sequenced well | Different phases, targeted workouts, smart progression |
| Passion | Running should fit your life, not hijack it | Training plans that respect time, stress, and enjoyment |
1) Consistency: The Fitness Sport Rule
Running is a fitness sport. The principle is straightforward:
Stress the body → recover → come back better adapted → repeat.
Mark calls each cycle a kind of “base unit”—one hard stimulus and the recovery that follows. When you can stack those base units, fitness rises over time.
This is also why taking two weeks or a month completely off tends to backslide fitness. It’s not that rest is “bad”—it’s that long breaks interrupt the cycle.
Consistency does not mean a run streak
A key clarification from the conversation: consistency isn’t “never take a day off.” Some runners need real rest days to recover well. The goal is simply to keep the overall pattern intact across months, not to win a streak contest.
Apply it this week:
Pick a weekly schedule you can repeat (even if it’s 4–5 runs/week) and protect it.
2) Capacity: Build the Work You Can Absorb
Capacity is your ability to handle training load while staying consistent.
That load can mean:
- Quantity (weekly mileage / long run progression), or
- Quality (how much hard work you can absorb without breaking down)
A big takeaway: capacity isn’t “do more no matter what.” It’s “build what you can recover from.”
One of Mark’s favorite reminders: the body adapts best when you can do the work repeatedly, not when you crush one heroic week and then implode.
If you’re building mileage, use an injury-aware approach like this guide on how to increase running mileage without getting injured.
Apply it this week:
Choose one knob to turn:
- Add a small amount of mileage or
- Add one small quality element
Not both at once.
3) Frequency: Run Often Enough to Adapt
Mark put it plainly: “The body adapts best to whatever we do most frequently.”
That’s why (for many runners) a simple shift like going from 4 runs/week to 5 runs/week can improve efficiency and durability—even if the added run is just an easy 20–30 minutes.
And this is where consistency and recovery matter: frequency helps only if you can recover.
If you’re unsure what “easy” should actually feel like, use this reference on easy run pace and recovery days.
Apply it this week:
If you currently run 3–4 days/week, add one short easy run and keep everything else the same.
4) Mixture: Choose the Right Ingredients (and Sequence Them)
Mixture is what runners love to debate: workouts, long runs, tempos, hills, intervals, phases, tapers.
Mark’s coaching lens is simple:
- Pick the adaptation you want (threshold, VO₂ max, endurance, efficiency)
- Target it clearly in the workout
- Then move on and let it absorb
Mixture also includes sequencing—how training changes across a cycle. That’s why periodization matters: it keeps training from being random and helps you peak when it counts.
If you want a clear explanation of the “phases” idea, this guide on training periodization is a strong companion read.
And if you want a structure you can actually follow, start with RunDoyen’s training plans hub and choose one aligned to your race distance.
Apply it this week:
Look at your last 2–3 weeks and ask:
- Have my workouts had a purpose?
- Or have I been “just working hard” without a target?
5) Passion: The Tenet That Protects All the Others
Passion isn’t fluff. It’s what prevents burnout—and what makes the first four tenets sustainable.
Mark’s point: running should support your life. If training becomes a constant stressor (cramming doubles, always feeling behind, obsessing over perfection), you’ll eventually stop wanting to do it.
A practical coaching moment from the conversation: if someone’s week is already overloaded, the right move can be less—an easy weekend, a reduced long run, or a reset—so that training stays positive.
If you’re in a motivation dip, this article on how to stay motivated to run pairs naturally with the “passion” tenet.
Apply it this week:
Make one decision that protects enjoyment:
- run with a friend once
- swap one “grind” run for a scenic route
- or take a true rest day without guilt
A Simple Weekly Self-Check Using the Five Tenets
Use this quick check every Sunday:
- Consistency: Did I string together the week without long breaks?
- Capacity: Did I add load in a way I could recover from?
- Frequency: Did I run often enough to feel like a runner this week?
- Mixture: Did my workouts have clear purposes?
- Passion: Do I feel pulled toward next week—or relieved it’s over?
If the answer to #5 is “relieved,” that’s not a character flaw. It’s a coaching signal.
FAQ
Do I need to run every day to be consistent?
No. Consistency means repeating stress + recovery cycles over time. Many runners improve with 4–6 days/week if the pattern is repeatable.
How do I know if I’m building capacity too fast?
Warning signs include persistent soreness, declining workouts, nagging aches, or needing frequent “emergency” days off. Build gradually and prioritize recovery.
Is adding a 5th run always better?
Often helpful, but only if it doesn’t compromise recovery. For some runners, a 5th day is the best upgrade. For others, it’s the start of burnout.
What’s the best workout “mixture” for my race?
It depends on your limiter (speed, endurance, durability, etc.). A coach can simplify this quickly by matching training to your goal and schedule.
Closing
The five tenets work because they’re simple:
- build consistently
- expand what you can handle
- run often enough to adapt
- train with purpose
- and keep it enjoyable
If you want help turning these tenets into a plan that fits your life, you can browse RunDoyen’s coaches or get matched with a running coach based on your goals and schedule.
