Kaizen: The Problem with Getting 1% Better Every Day
Somewhere along the way, “Kaizen” became a slogan.
Small improvements. Every day. Get 1% better.
It’s neat. Memorable. Easy to sell.
And in strength & conditioning, it fits perfectly into how we like to think: progressive overload, marginal gains, consistent habits over time. It sounds like exactly what we’re already doing—just with a Japanese word attached to it.
But the more I’ve seen it used in practice, the more I think we’ve flattened the idea into something a bit too comfortable.
Because real Kaizen—the original concept—isn’t just about small improvements.
It’s about continuous confrontation with how things are currently done.
And that’s a lot less appealing.
Where Kaizen Actually Comes From
Kaizen came out of post-war Japanese industry, most famously through Toyota.
The idea wasn’t just to improve outcomes—it was to constantly refine processes. Workers on the factory floor weren’t just executing tasks; they were expected to question, adjust, and improve them.
Importantly, this wasn’t top-down.
Responsibility for improvement sat with everyone.
If something wasn’t working, you didn’t wait for management to fix it. You engaged with it. You owned it.
That part tends to get lost when Kaizen gets translated into performance environments.
We keep the idea of “small improvements,” but we quietly remove the responsibility.
The Comfortable Version of Kaizen
In S&C, Kaizen often shows up like this:
Add 2.5 kg to the bar
Improve sprint time by 0.05 seconds
Increase compliance with a program
Refine technique slightly over time
All good things.
But none of these really challenge the system itself.
They assume the plan is correct, and the athlete’s job is to gradually execute it better.
That’s not Kaizen. That’s progression.
Kaizen would ask a more uncomfortable question:
Is the way we’re doing this actually the best way?
And that question doesn’t just apply to athletes—it applies to us as coaches.
The Illusion of Constant Progress
The idea of getting 1% better every day is motivating.
It’s also unrealistic.
Performance isn’t linear. Adaptation isn’t predictable. Some days you go backwards. Some weeks stall completely. Sometimes what looks like progress is just noise.
And in high-performance sport, pushing for constant improvement can actually become counterproductive.
Athletes get stuck in a mindset where:
Every session has to be “better” than the last
Plateaus feel like failure
Deloads feel like regression
That’s not Kaizen—that’s pressure disguised as philosophy.
Real Kaizen would accept that stagnation, or even regression, is sometimes part of the process. But it would still ask:
What can we learn from this?
Not:
How do we force progress anyway?
Where This Shows Up in Coaching
I’ve caught myself doing this more than I’d like to admit.
Tweaking programs endlessly. Adjusting exercises. Changing small details week to week, thinking I’m “optimizing.”
But when I look closer, those changes aren’t always meaningful.
They’re just movement.
And that’s one of the traps of Kaizen in practice: it can justify constant change, even when change isn’t needed.
Not every detail requires refinement. Not every session needs to be better than the last.
Sometimes the best thing you can do—for performance and for clarity—is to stay consistent long enough for something to actually work.
The Athlete Side of Kaizen
Where Kaizen does have real power is in behaviour.
Small, consistent actions compound—especially outside the gym.
Sleep habits. Nutrition. Recovery. Attention to detail.
These are areas where marginal gains actually matter.
But again, the key difference is ownership.
If the athlete is just following instructions—eat this, sleep like that, do this recovery protocol—it doesn’t really stick.
When they start to engage with the process:
Noticing how sleep affects performance
Adjusting nutrition based on training demands
Reflecting on what actually helps them recover
That’s closer to Kaizen.
It’s not just doing more—it’s understanding more.
Kaizen in Rehab: Slow, Frustrating, Necessary
If there’s one place where Kaizen genuinely fits, it’s rehab.
Because rehab is slow.
Progress is often measured in very small wins:
A few degrees more range of motion
Slightly less pain
A bit more confidence in a movement
There’s no shortcut here. No big jumps.
And this is where the mindset becomes useful—focusing on what is improving, rather than what isn’t.
But even here, it’s not perfect.
Some athletes interpret “small improvements” as “always improving,” which can be misleading. Rehab isn’t linear either. There are setbacks, plateaus, days where nothing changes.
So again, Kaizen works—but only if it’s understood properly.
Not as constant progress, but as constant engagement with the process.
The Part We Don’t Like: Reflection
The hardest part of Kaizen isn’t the improvement.
It’s the reflection that comes before it.
In the Toyota system, workers would stop the production line if something was wrong. That’s a big deal. It forces you to confront inefficiencies immediately.
In S&C, we don’t always do that.
We let things run:
Programs that aren’t really working
Athletes who are disengaged
Sessions that feel flat
We notice it—but we don’t always act on it.
Because stopping and reassessing is uncomfortable. It feels like losing momentum.
But that’s actually where Kaizen lives.
Not in the constant doing—but in the willingness to pause, question, and adjust.
A More Honest Way to Apply It
If I strip this back to something practical, Kaizen in coaching probably looks less like “1% better every day” and more like this:
Be consistent enough to see what’s actually happening
Be critical enough to question whether it’s working
Be patient enough not to overreact
Be honest enough to change when needed
That’s less catchy. But it’s probably closer to reality.
It also shifts the focus away from just the athlete.
Because if we’re talking about continuous improvement, it can’t only apply to them.
It has to apply to how we coach, how we plan, and how we make decisions.
The Risk of Oversimplifying Good Ideas
Kaizen is a good idea.
But like a lot of good ideas in performance, it becomes less useful when it’s reduced to a slogan.
“Get 1% better every day” sounds great. It’s easy to remember. Easy to communicate.
But it skips over the messy parts:
Progress isn’t linear
Not all change is improvement
Reflection is harder than execution
And if we ignore those parts, we end up with something that looks like Kaizen—but doesn’t really function like it.
Final Thought
Continuous improvement sounds like a forward-moving process.
But in practice, it’s not just about moving forward.
It’s about stopping, questioning, adjusting—and then moving again.
Sometimes slowly. Sometimes not at all.
And occasionally, taking a step back.
That’s probably the part that doesn’t make it into the slogans.
But it’s also the part that makes it work.
