Introduction
Every year, the same thing happens at the NFL Combine.
Top college athletes—stronger, bigger, and more prepared than ever—step onto the field expecting to post their best times in the 40-yard dash.
👉 And every year…
👉 some of them don’t.
Despite:
- elite coaching
- advanced training programs
- months of preparation
👉 their speed doesn’t improve…
👉 and in some cases, it actually gets worse.
So what happened?
⚠️ The Pattern No One Talks About
These athletes didn’t fail because they didn’t train hard enough.
In fact:
- their strength improved
- their conditioning improved
- their preparation improved
👉 But their speed didn’t.
That’s not a coincidence.
👉 It’s a pattern.
👉 To understand why this keeps happening, see:
Why Most Speed Training Programs Don’t Work
🧠 What Most “Speed Training” Actually Looks Like
Leading up to the combine, many athletes follow programs that include:
- resisted sprinting (bands, sleds, parachutes)
- weight training
- high-repetition movements
- agility drills
👉 These are all useful tools.
But here’s the problem:
👉 they primarily develop strength and conditioning…
👉 not true speed.
👉 To understand why strength alone doesn’t translate into speed, see:
Why Strength Alone Won’t Make You Faster
❗ The Real Issue: Incomplete Development
Most training programs heavily emphasize:
- hip extensors (glutes, hamstrings)
- quadriceps
- calves
👉 These muscles drive the push phase of running.
But they often neglect:
- hip flexors
- swing phase development
- full-system coordination
👉 This creates a major imbalance.
👉 The athlete becomes strong in one part of the movement…
👉 but limited by another.
🔑 The Hidden Limitation: The Swing Phase
During sprinting, speed is not just about pushing harder into the ground.
👉 It’s also about how fast you can cycle your legs.
That movement is driven by:
👉 the hip flexors
These muscles:
- pull the leg forward
- control stride recovery
- influence stride speed
👉 And they are often undertrained or ignored entirely.
👉 Which means:
👉 no matter how strong an athlete becomes…
👉 their speed is capped by how quickly they can reposition their leg.
👉 To understand how this impacts your speed, see:
Hip Flexors for Running Speed
🔄 Speed Is a System—Not a Single Attribute
One of the biggest misconceptions in training is this:
👉 If you get stronger, you will get faster.
But speed doesn’t work that way.
👉 Speed is a system.
It depends on:
- force production (push phase)
- leg recovery (swing phase)
- timing and coordination (return phase)
👉 If one part of that system is underdeveloped…
👉 the entire system is limited.
👉 To understand how these phases work together, see:
Push Phase vs Swing Phase in Running
⚡ Why Athletes Plateau—or Get Slower
When athletes continue to train:
- the same muscles
- the same way
- with the same methods
👉 they eventually reach a limit.
At that point:
- strength increases may slow down
- added muscle mass may become counterproductive
- coordination may not improve
👉 And speed stalls—or declines.
👉 This is why some athletes run slower at the combine than they did in college.
🧩 What’s Missing From Most Training
Most programs develop:
- strength
- endurance
- conditioning
👉 But they neglect:
- coordination
- timing
- rapid muscle response
👉 These are the factors that actually determine speed.
👉 To understand how coordination affects your speed, see:
How Coordination Affects Running Speed
🚀 A Different Approach to Speed Development
To improve speed, training must go beyond repetition and strength.
👉 It must challenge your body to:
- react
- adjust
- stabilize
- coordinate
👉 This is where isometric training with resistance bands becomes powerful.
This type of training:
- targets fast-twitch muscle fibers
- improves muscle response
- develops coordination without adding unnecessary mass
👉 To understand how this method works, see:
Isometric Training for Speed
👉 To see how resistance bands are used in speed training, see:
Resistance Bands for Speed
🏁 Conclusion: The Real Reason Speed Doesn’t Improve
When athletes fail to improve their 40-yard dash time…
👉 it’s rarely due to lack of effort.
👉 It’s due to incomplete training.
They’ve developed:
- strength
👉 but not the full system required for speed.
🔥 What This Means for You
If you want to run faster:
👉 don’t just train harder
👉 train smarter
Focus on:
- developing all phases of movement
- improving coordination
- training how your muscles respond
👉 Because speed is not just about how much force you produce…
👉 it’s about how efficiently your body moves as a system
❓ Frequently Asked Questions
Why do athletes get slower after training hard?
Because their training often overemphasizes strength while neglecting coordination and full-system movement.
Why is the 40-yard dash affected by training?
Because speed depends on how your body moves and coordinates—not just how strong you are.
Do stronger athletes always run faster?
No, strength helps, but without proper coordination and muscle response, it won’t translate into speed.
What is the biggest mistake in speed training?
Focusing too much on strength and not enough on coordination, timing, and system development.
How can I improve my sprint speed effectively?
By training your body to respond quickly, coordinating all phases of movement, and addressing weak links like the swing phase.
