Train for Speed: The Force-Based Approach

Most high school athletes approach speed training the same way. They identify a weakness, then run. More sprints. Faster sprints. Longer sprints. Repeat.

The results are inconsistent. Some athletes get faster. Others stagnate. Both groups put in the work.

Here's the problem: You're treating speed as a conditioning problem when it's actually a force production problem.

Speed isn't about how much work you do. It's about how much force you apply to the ground in a short period of time. Once you understand that distinction, everything changes.

In this post, we'll walk through the biggest speed training mistakes—the ones that waste your time and leave you frustrated—and show you how to train for actual speed gains.

H2: The Four Speed Training Mistakes That Kill Your Progress

Mistake #1: Treating Speed as a Conditioning Issue

This is the most common error. An athlete feels slow. The response: run more. Longer distances. Higher repetitions. More frequency.

Conditioning matters. Fitness matters. But speed is not the same as conditioning.

Speed is the product of two variables: - Stride length (how far you travel with each step) - Cadence (how many steps you take per second)

To increase stride length, you need more force. Not more running. You need stronger muscles that produce force faster.

When you only add volume—more sprints, more conditioning—you might improve your work capacity. You might feel fitter. But you're not addressing the force production limitation that's actually slowing you down.

The athlete who does 20 sloppy, high-volume sprints each week will plateau. The athlete who does 6 sprints at maximum effort, with full recovery, and focuses on ground contact mechanics will improve.

Mistake #2: Skipping Strength Work Because "Speed Training Is Specific"

You've heard it before: "You have to train the movement." "Sport-specific work is king." "Strength training slows you down."

These statements are wrong.

Every sprint is built on a foundation of absolute strength. If you can't generate high amounts of force in a squat or a deadlift, you won't generate high amounts of force into the ground during a sprint.

This doesn't mean you need to be a powerlifter. It means your strength-to-bodyweight ratio matters. It means your ability to produce force in basic patterns—hip extension, knee extension, ankle plantarflexion—directly limits your ability to accelerate horizontally. (This is exactly what the Strength & Power course covers—how to build the force production engine that speed is built on.)

High school athletes often skip this step. They think strength training isn't "sport-specific" enough. So they do more conditioning, more sprints, more "specific" work.

Then they wonder why their fastest competitors—the ones doing squats, deadlifts, and explosive power work—keep getting faster.

Strength is the base. Everything else builds on it.

Mistake #3: Ignoring Rate of Force Development (RFD)

You can be strong. You can be powerful. But if you can't produce that force quickly, you're still slow.

Rate of Force Development (RFD) is the amount of force you generate per unit of time. In sprinting, you have roughly 0.5 to 1.5 seconds of ground contact across an entire acceleration phase. During each individual foot strike, you have maybe 0.1 to 0.3 seconds to apply force.

That's not much time.

If your nervous system isn't trained to recruit muscle fibers rapidly, you won't take advantage of your strength. You'll be slow off the line. You'll lose the race in the first 5-10 meters.

Training for RFD means: - Plyometric work (box jumps, bounds, reactive drills) - Short, explosive movements (not long, grinding efforts) - Full recovery between sets (so your nervous system can fire at maximum capacity) - Speed and intent (every rep is a maximal effort)

Many athletes skip this entirely. They do traditional strength training, which builds peak force but not the rate at which you can produce it. Then they wonder why they're not faster, even though they're stronger. The Speed Development course walks through how to structure your training to address both—building force production and then training your nervous system to use it faster, with specific RFD protocols and measurement strategies.

Mistake #4: Never Measuring Output—Just Assuming More Work = More Speed

This is the biggest blind spot in high school speed training.

You do the work. You think you're getting faster. But you're not actually checking. You're guessing based on feel, on times, on subjective comparison.

Feel is unreliable. Times can vary based on conditions, technique, fatigue level, and measurement error. Subjective comparison is—well—subjective.

What you need is objective data.

At Starke, we use force plates to measure the exact force and power you produce during a sprint. We capture your rate of force development. We identify imbalances—is your left leg weaker than your right? We measure ground contact time. We assess your acceleration profile—where in the first 10 meters does your power drop off? (Post 2 has a full breakdown of how force plate testing works and what each metric means.)

This data tells us exactly why you're slow. And it tells us exactly what to train.

One athlete might have high peak force but poor RFD. Another might have good RFD but poor force production. Another might be strong but imbalanced. Each athlete needs a different training emphasis.

If you train blind, you're playing guessing games. You're hoping the work you do addresses your limitation. Most of the time, it doesn't.

H2: What Actually Drives Sprint Speed

Let's strip away the noise and talk about the mechanics.

When you sprint, you're not trying to move your legs fast. You're trying to apply as much force as possible into the ground, as quickly as possible, with each step.

That horizontal force pushes your center of mass forward. The more force you apply, the greater your acceleration. The greater your acceleration across the acceleration phase, the faster your top speed.

This is basic physics. Force equals mass times acceleration. You can't accelerate without force.

The three elements that drive sprint performance are:

Ground Contact Time: How long your foot is on the ground. Shorter is better. Longer ground contact gives you less time to apply force, wastes energy, and creates a longer "breaking" phase where your front leg slows you down. Elite sprinters spend less time on the ground—around 0.12 to 0.14 seconds per step. Slower athletes often spend 0.16 to 0.20 seconds. Training to reduce ground contact time (without sacrificing force) is a major speed gain.

Horizontal Force Application: The direction of your force matters. A lot of athletes generate force but direct it downward or at odd angles. You need horizontal force—force that pushes you forward. This comes from proper mechanics (slight forward lean, appropriate hip angle, effective leg swing) and from specific strength work. A force plate shows you exactly how much of your force is directed horizontally versus vertically.

Stride Length vs. Cadence Tradeoff: You can run fast with long strides and lower cadence, or with short strides and higher cadence. Both can work. But each has a ceiling. Stride length is limited by your force production and range of motion. Cadence is limited by your nervous system's ability to fire rapidly. The best sprinters find their individual balance. For most athletes, increasing stride length (by building force) is the more effective approach early on.

All three of these elements are trainable. None of them improve with generic "speed work." All of them improve when you train based on your specific limitation.

H2: How Force Plates Reveal Your Speed Limitation

Here's a concrete example:

Two athletes, same age, same sport. They both want to be faster. They both commit to a speed training program. One improves significantly. One doesn't.

Why?

Without force plate data, you'd assume it was effort, genetics, or program design. You'd adjust something and hope it works.

With force plate data, you know exactly what's different.

Athlete A: 500N of peak horizontal force. Good ground contact time (0.14 seconds). Poor RFD—takes 0.08 seconds to reach 80% of peak force. 10% asymmetry between legs.

Athlete B: 650N of peak horizontal force. Slow ground contact time (0.18 seconds). Excellent RFD—reaches 80% of peak force in 0.05 seconds. Balanced (less than 3% asymmetry).

Both athletes are slow. But for different reasons.

Athlete A needs to build absolute force production. The training emphasis is strength—squats, deadlifts, heavy weights. RFD drills (plyometrics) are secondary. And the imbalance must be addressed—single-leg strength work is essential.

Athlete B doesn't need more strength. The force production is already there. The issue is ground contact time. This athlete is spending too long on the ground, which limits acceleration. The training emphasis is mechanics work (sprint drills, technique), RFD training (rapid force application), and reducing wasted motion.

If Athlete A trains like Athlete B (plyometrics and mechanics), they'll improve slowly. They're missing the strength foundation.

If Athlete B trains like Athlete A (heavy strength), they'll waste time. They're already strong enough. They need to apply that force faster and cleaner.

Force plates show you which athlete you are. Then the program can actually match the person. This is exactly what the Speed Development course covers—how to read your force plate data, identify your specific limitation, and build a 6-week acceleration block around what your numbers actually show.

H2: The Starke Approach to Speed Development

Speed development at Starke is built on a simple framework: Assess → Analyze → Train → Re-test.

Step 1: Assess

We start with a force plate evaluation. You perform multiple sprint efforts—10-meter, 20-meter, 30-meter distances—and we capture every data point. Peak force. Peak power. RFD at different time windows. Horizontal vs. vertical force distribution. Symmetry between legs. Ground contact time. Acceleration profile.

We also assess your baseline strength—squat and deadlift numbers—and calculate your strength-to-bodyweight ratios. We evaluate your movement quality. We look at your current speed times to establish a baseline.

This assessment takes 60-90 minutes. It's thorough. It has to be, because everything that follows is built on it.

Step 2: Analyze

Once we have the data, we interpret it. What's your primary limiting factor? Is it absolute force? RFD? Ground contact time? Asymmetry? Movement quality?

Is your strength sufficient, or do we need to build that first? Is your power good but your mechanics poor? Are you imbalanced?

We create a "speed profile" that shows exactly where your speed gains will come from. This isn't a guess. It's data-driven analysis. (This mirrors what Post 11 covers about long-term athletic development—knowing which capacity to build in which phase of training.)

Step 3: Train

Your program is built around your profile. If you need force, we emphasize compound strength work. If you need RFD, we emphasize plyometrics and explosive movements. If you need mechanics, we emphasize technique. If you're imbalanced, we emphasize single-leg work.

You're not doing generic speed training. You're doing the specific training that your data says will make you faster.

The program runs for 8-12 weeks. We track progress. We make adjustments based on how your body responds.

Step 4: Re-test

At the end of the cycle, we run the full force plate assessment again. We compare the data. Did your peak force increase? Did your RFD improve? Did your ground contact time decrease? Did you get faster?

Most of the time, yes. Because you trained what actually needed to improve.

Then we look at what's next. Did you reach your goals? Do we need another cycle? Is there a new limitation that's emerged?

This is how you build speed. Not by guessing. Not by doing the work you think you should do. By measuring, analyzing, training what matters, and then measuring again.

H2: Practical Application: What to Do Right Now

If you can't get a force plate assessment immediately, here's what you can do:

First: Assess your current speed and strength

Time yourself on 10, 20, and 30-meter sprints. Record your best times. Test your squat and deadlift—aim for a 1-rep max or a heavy 3-5 rep set. Calculate your strength-to-bodyweight ratio. Know your baseline.

Second: Identify your likely limiting factor

If you're significantly weaker than your sport peers (your squat is less than 1.5x bodyweight), strength is your priority. Build your foundation first. (This is where Post 6 on "Strong vs. Powerful" is helpful—it clarifies the difference between building peak force and rate of force development, so you know which one you need.)

If you're reasonably strong but feel slow off the line, RFD is likely your limitation. Add plyometric work.

If you're strong and explosive but your 30-meter time is worse than your 10-meter time, mechanics and ground contact time are the issue. Focus on sprint technique.

Third: Design a focused program

Don't do everything. Pick your primary emphasis based on your limitation.

If strength: Heavy compound work (squats, deadlifts, lunges) 2-3x per week. Standard rep ranges (3-6 reps, multiple sets). Full recovery.

If RFD: Plyometric work (box jumps, bounds, jump squats) 1-2x per week. Very low reps (3-5 per set). Very high intensity. Full recovery between sets.

If mechanics: Sprint drills and technique work 1-2x per week. Short distances (10-30 meters). Full recovery. Focus on form, not fatigue.

Add general conditioning at the end of sessions, but don't let it be your main training.

Fourth: Re-test in 8-12 weeks

Run your speed tests again. Compare. Did your times improve? What changed—did you get stronger, or did your mechanics improve?

Then adjust. If you improved significantly, you addressed the right limitation. If you improved marginally, you might need to shift emphasis.

This is the data-driven approach. Small, testable cycles. Measurement. Adjustment.

H2: Why Starke Is Different

Starke Industries is a training facility. We're not a gym where you pay to access equipment. We're not a coaching service where you get a canned program.

We're a performance laboratory where we identify your specific limitation, build your program around it, and track your progress with objective data.

Every speed program we write is unique because every athlete is unique. Your force profile is different from the athlete next to you. Your RFD curve is different. Your mechanics are different. Your strength-to-bodyweight ratio is different.

A generic speed program might help you. It might not. It's a guessing game.

A data-driven program built around your specific profile? That will make you faster. We've done this thousands of times. We know what works when the data is right.

If you're serious about speed, you need to be serious about measurement. You need to know what's actually holding you back. And you need a program built around that data, not around what you think you need.

CTA

If you want to train for speed the right way—starting with the data—the Speed Development course gives you the full system. You'll learn how to read your force plate data (or understand it if you get tested), identify your specific limitation, and build a 6-week acceleration block around what actually needs to improve.

Start the Speed Development course → starkeit.com/courses/speed-development

Secondary CTA: Get Your Baseline Data

Not sure what your force profile looks like? The fastest way to know is to get tested on a force plate.

Book a force plate baseline assessment → starkeit.com/assessment

Get the data. Then train smarter, not just harder.