#005. Why Doing Only Sport You Love Can Quietly Break You Down
Hey there, it’s Becky
Strength training matters as we age. So does stamina and endurance. That part is not controversial.
What is rarely discussed, and what I learned the hard way, is that doing only one thing well is rarely enough for long-term resilience.
If the gym is the only place you can move right now, that is still a win. You are loading your body. You are showing up. Any movement is better than none.
But over time, something else starts to matter.
Carryover.
Does what you are doing prepare you for life outside that environment?
I have seen this across all ends of the movement spectrum, and I have lived it myself.
There are people who lift consistently and look strong, but struggle the moment movement becomes unpredictable. A hill, uneven ground, a long swim, or a full day outside with their family, or even running for a bus, suddenly feels harder than it should.
There are master-level cyclists riding huge weekly volumes. They are powerful, committed, and disciplined, but often missing regular weight-bearing work. Over time, that absence shows up quietly in bones, joints, back aches, and overall robustness.
There are runners who never lift or vary their movement. Eventually, running too much starts to feel punishing rather than freeing.
None of this happens overnight, which is why it is easy to miss.
I have had seasons where I cycled almost exclusively. My stamina and cycling leg strength were excellent. I could ride for hours and felt very fit. I never felt the need to exercise in any other way.
But when I returned to running, the adaptation was poor. My lower core was sore. My hips and stabilisers struggled. Even walking normally took a few days to feel natural again.
When I went back to swimming after time away, my shoulders, lower back, and even my breathing muscles told the same story.
And when I tested something simple, like push-up strength for my age, I could not do one.
That was not failure. It was specialisation without foundation, and a wake-up call to work on my all-round strength.
The body adapts very specifically to what we ask of it. It becomes efficient at one thing and quietly deconditions elsewhere.
Doing only what we love often feels sustainable in the short term. In the long term, it can narrow us.
The answer is not to abandon the thing you enjoy most. It is to support it.
Cycling is still my main sport. It is the anchor and what I love most. Around that, I deliberately layer in other forms of movement.
Short distance running or longer power walking provides impact and bone loading.
Regular lifting builds resistance, control, and strength across multiple planes.
Swimming develops upper-body strength, breathing capacity, and mobility.
Each one protects the others.
Across the seasons, this balance shifts. In winter, I might trade a run and a lift for cross-country skiing, which provides full-body strength and stamina outdoors in a single session.
Nothing is fixed forever. Everything is phased. Variety in both sports and terrain keeps my all-round strength building while maintaining interest in my main sport.
This is not about doing more. It is about doing enough of the right, opposing inputs so the body stays adaptable and ready for life’s physical challenges.
So the goal is not optimisation. It is durability.
And durability is what keeps you moving, not just this year, but for decades to come in the many ways you want to move and support yourself.
If you have any questions on the above letter, hit reply and let me know!
Until next week…
Becky.
Momentum wins 🙌.
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