Sprinting: A Very Underutilized Training Tool
May 07, 2026Most people completely ignore sprinting.
They lift. They do some steady state cardio. Maybe some interval type training here and there. But all out sprinting? Rare or never. That’s no good!
Because sprinting trains something most people are actively losing as they age… and most people never realize it until it’s already happening.
Your fast twitch muscle fibers.
Your body has different muscle fiber types with different jobs. Type I fibers are your slow twitch fibers. They’re more endurance based and fatigue resistant. Type II fibers are your fast twitch fibers. They’re responsible for high force, high speed, explosive movement, and rapid force production.
Sprinting, jumping, changing direction, reacting quickly, and explosive lifting all rely heavily on these fast twitch fibers.
Here’s the problem… fast twitch fibers are the first ones to decline as you age, especially if you stop using them. Research on sarcopenia consistently shows that high threshold motor units and fast twitch fibers tend to atrophy more rapidly in sedentary individuals.
In simple terms, if you stop asking your body to move fast and produce power… your body adapts by becoming slower and less powerful.
That’s not just an athletic issue. That’s a life issue.
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Most people think aging is just about “losing muscle,” but it’s also about losing speed, reaction time, elasticity, coordination, and the ability to produce force quickly. Those are all qualities tied heavily to fast twitch fiber function.
And that matters more than most people realize.
Power, which is your ability to produce force quickly, is one of the biggest predictors of longterm function and independence. Not just strength… power.
Think about real life for a second – like catching yourself when you trip. Regaining balance if you slip on ice. Changing direction quickly. Moving out of the way quickly. Preventing a fall.
Those are all rapid force production tasks.
If your body loses access to that “high gear,” your margin for error gets smaller and smaller over time.
This is also where most training programs fall short.
A lot of training today lives almost entirely in slower, controlled movement. And of course there is tremendous value in that. Strength training matters. Muscle mass matters. Controlled movement matters.
But if all you ever do is move slowly, your body becomes really good at moving slowly.
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Sprinting changes that.
Sprinting requires maximal motor unit recruitment, high rates of force development, tendon stiffness, elasticity, coordination, timing, and rapid force transfer through the body. It’s one of the most neurologically demanding things you can do.
And that’s exactly why it’s so valuable.
It also trains qualities most people lose without realizing it – Tendon elasticity, ground force production, reactivity, timing, and rhythm.
This is one reason sprinting tends to make people feel “athletic” again, even after years away from sports.
And no… sprinting is not just “running hard.” That’s another common misunderstanding.
True sprinting is about output, not exhaustion. A lot of people turn sprint work into conditioning because they don’t rest enough between efforts. But real sprinting is short duration, high intent...with full recovery between reps.
This is about speed and power, not surviving fatigue like the goal of conditioning workouts.
The good news is you probably need way less sprinting than you think.
You don’t need huge sprint workouts or track athlete volume. Even a few short sprints once or twice per week can provide a meaningful stimulus for maintaining fast twitch function and explosive capability.
The key is quality.
If you haven’t sprinted in years, don’t immediately go run all out 100 meter sprints. Ease into it. Hill sprints are a great option because they reduce impact forces and help clean up mechanics naturally.
You can also start with shorter accelerations, sled sprints, jumps, or explosive drills before progressing into more aggressive sprint work.
When people think about longevity, they usually think walking, Zone 2 cardio, lifting weights, mobility work, or eating healthy. All of those matter. 100%!
But sprinting deserves to be part of the conversation too, because longevity is not just about being jacked when you're old. It’s about staying CAPABLE.
Can you still move fast? Can you still react quickly? Can you still produce power?
Those qualities matter.
If you want to maintain strength, you lift. If you want to maintain endurance, you do longer, steady state cardio.
If you want to maintain speed, power, athleticism, and fast twitch function…
SPRINT.
Because the body adapts to what you ask it to do.
And if you stop asking for speed…eventually your body stops giving it to you. Simple as that!
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