Improve 40-Yard Dash With Strength Training: Building Speed Through Raw Power

The 40-yard dash doesn’t measure how fast you are. It measures how quickly you can get fast.

There’s a distinction most athletes miss. Maximum velocity—the fastest speed your body can reach—is one quality. Acceleration—how rapidly you build toward that speed—is something entirely different. The 40-yard dash is fundamentally an acceleration test. Your first five metres matter more than your final five metres. The strength in your legs and through your core determines how explosively you can fire out of a set position and build speed those first critical yards.

This is where strength training enters the picture. Many athletes treat the 40-yard dash as a pure speed event—something you develop by running faster, by doing agility drills, by accumulating sprint volume. But that approach leaves time on the clock. Real improvement in the 40-yard dash comes from building the raw strength that allows more explosive acceleration.

Here at Acceleration Australia, we work with athletes across multiple sports who need to improve their 40-yard dash time. American football athletes preparing for college recruitment. Rugby league and AFL players working toward professional selection. Track and field sprinters refining their acceleration mechanics. What we see consistently: athletes who improve their lower body strength while maintaining or improving their speed mechanics see the biggest gains in 40-yard dash performance.

The Physics of the 40-Yard Dash: Why Strength Matters More Than You Think

Understanding how speed actually works changes everything about how you train for it.

When you explode out of a starting position in the 40-yard dash, your muscles apply force against the ground. The ground applies equal and opposite force back (Newton’s third law). The stronger you are—the more force your muscles can generate—the greater the propulsive force you create, and the faster you accelerate. This isn’t theory. This is physics.

Here’s the practical implication: if you increase your lower body strength by 15%, and your sprint mechanics stay the same, your 40-yard dash time will improve. Not dramatically. You’re not looking at 0.5 second gains. But improvements of 0.05–0.15 seconds are realistic and significant. In a sport where the difference between selected and not selected is often measured in tenths of a second, that matters.

The strength-speed relationship has a specific profile. In the first 10–15 metres of a 40-yard dash, strength is the dominant factor. You’re still accelerating. Your speed is increasing. The power in your legs and glutes determines how explosively you accelerate through that first phase. At 20–30 metres, you’re reaching near-maximum velocity. Speed mechanics and running form become more relevant than raw strength. By 35–40 metres, maximum velocity maintenance is the dominant factor—are you holding your speed or decelerating?

Most athletes, when they work to improve their 40-yard dash, focus on the 20–40 metre phase. They run, they do sprints, they work on “top-end speed.” But that’s working on the phase where you have the least control and the least potential for improvement. The 0–15 metre phase—the acceleration phase—is where strength training creates the most impact, where improvements are most reliable, and where athletes have the most control.

At Acceleration Australia, this distinction drives our programming. We don’t ignore running mechanics or speed development. But we prioritise lower body strength for athletes specifically working to improve 40-yard dash time, because that’s where the leverage is.

The Strength Qualities That Drive 40-Yard Dash Performance

Not all strength is equal for the 40-yard dash. Some strength qualities transfer directly to sprint acceleration. Others are less relevant.

Maximum strength in the lower body—the ability to move heavy loads—builds the neuromuscular foundation that allows explosive acceleration. A stronger athlete, all else equal, accelerates faster from a standstill. Maximum strength is developed through compound movements (squats, deadlifts, lunges) performed with heavy loads (85%+ of one-rep maximum) for low reps. This is foundational work. An athlete with weak lower body maximum strength will struggle to generate explosive acceleration regardless of how much speed work they do.

Explosive strength or power—the ability to move loads quickly—is the direct driver of acceleration speed. An athlete with high maximum strength but poor power will generate force slowly. An athlete with moderate maximum strength but high power will accelerate explosively. Explosive strength is developed through movements performed with intent and speed (jumping, Olympic lift variations, resisted acceleration work). This is where the acceleration gains come from.

Rate of force development is how quickly your muscles reach maximum force. It’s the quality that matters most in the first few hundred milliseconds of a 40-yard dash—the absolute beginning of acceleration. Some athletes can generate a lot of force, but it takes time. Others generate less total force but achieve it in a fraction of a second. Rate of force development wins sprints. It’s developed through high-velocity, low-load movements and plyometric training—box jumps, bounds, explosive medicine ball work, resisted acceleration.

Elastic recoil—your muscles’ ability to store and release energy like a spring—contributes to running efficiency and acceleration smoothness. Plyometric training (jumping, bounding) develops this quality. A muscular-skeletal system with good elastic recoil expresses the same strength more efficiently.

Unilateral strength balance prevents one leg from dominating, which kills acceleration mechanics and increases injury risk. A 40-yard dash requires both legs firing symmetrically and simultaneously. If one leg is significantly stronger, that leg will dominate during acceleration, pulling your body sideways or forward inefficiently. Single-leg strength work prevents this.

All four of these strength qualities—maximum strength, explosive strength, rate of force development, and elastic recoil—contribute to 40-yard dash performance. A comprehensive strength training program for 40-yard dash improvement doesn’t choose between them. It builds all four systematically.

The Strength Training Program That Improves 40-Yard Dash Time

A strength program designed specifically to improve 40-yard dash performance looks different from a general strength program or a bodybuilding program.

The focus is lower body. Upper body strength is relevant for starting position and posture, but the 40-yard dash is driven by the legs, hips, and glutes. A 40-yard dash-specific program dedicates 80%+ of strength work to lower body development.

The movements are compound and sport-specific. Squats, deadlifts, lunges, and their variations develop maximum strength and power across the full range of motion required for acceleration. Olympic lift variations (power cleans, hang cleans, clean pulls) develop explosive strength and rate of force development in patterns that mimic acceleration. Single-leg variations (Bulgarian split squats, single-leg deadlifts, single-leg bounds) develop unilateral strength and balance. These movements earn their place because they’re directly transferable to sprint acceleration.

Here’s what a weekly 40-yard dash-focused strength program looks like at Acceleration Australia:

Monday: Maximum Strength Lower Body

• Dynamic warm-up and movement preparation (10 minutes)
• Barbell back squats or deadlifts: 4 sets of 4–6 reps at 85–90% one-rep max (heavy, full recovery between sets, 2–3 minute rest)
• Accessory compound movement (single-leg deadlifts, Bulgarian split squats): 3 sets of 6–8 reps
• Core work (planks, anti-rotation holds): 2–3 sets of 45–60 second holds
• Total session time: 50–60 minutes

Wednesday: Explosive Strength and Power

• Dynamic warm-up and movement preparation (10 minutes)
• Plyometric primer (box jumps, bounding): 3 sets of 5 reps at 80–90% effort (not maximal, just preparing the nervous system)
• Power clean or hang clean: 5 sets of 3 reps at 75–80% (explosive intention, full recovery)
• Resisted acceleration work (sled sprints, weighted vest sprint, band-resisted acceleration): 4 sets of 15–20 metres with 2–3 minute recovery between efforts
• Jump squats or explosive lunges: 2 sets of 5–6 reps
• Core work: 2 sets of dynamic core engagement (Pallof press, landmine rotations)
• Total session time: 45–55 minutes

Friday: Speed and Elastic Recoil Development

• Dynamic warm-up and acceleration preparation (10 minutes)
• Bounding series: 3 sets of one court length or 30 metres, building height and distance with each bound
• Reactive jumping (depth jumps, jump-ups): 3 sets of 4–5 reps at maximum explosion (full recovery)
• Unloaded sprint acceleration: 3–4 sets of 10–20 metres at maximum effort with full recovery (2–3 minutes between efforts)
• Single-leg work (single-leg hops, single-leg bounding): 2 sets of 6–8 reps per leg
• Dynamic stretching and cool-down mobility (10 minutes)
• Total session time: 40–50 minutes

This is a three-day-per-week program. Other days can include sport-specific training, skill work, technique refinement, or recovery. The three strength sessions are positioned to allow adequate recovery—at least one full day between heavy strength days, and never performing maximum strength and explosive strength work on the same day (the nervous system can’t fully recover for a second maximum effort).

The program is periodised. In a 12-week block, weeks 1–4 emphasise maximum strength (building the foundation). Weeks 5–8 maintain maximum strength while increasing explosive strength focus (building power). Weeks 9–12 maintain all qualities while emphasising rate of force development and elastic recoil (sharpening the acceleration). A 40-yard dash test at week 12 typically shows measurable improvement—usually 0.05–0.2 seconds, depending on starting fitness level.

Why Certain Exercises Work Better Than Others for 40-Yard Dash

Not every lower body strength exercise transfers equally to 40-yard dash performance. Some movements are highly specific. Others are less relevant.

Squats and deadlifts are foundational. They build maximum strength across the hip, knee, and ankle joints—exactly the joints required for acceleration. Front squats and deadlifts emphasise the quads slightly more, which is relevant for knee extension in sprinting. Back squats and deadlifts emphasise glute and hamstring engagement slightly more, which is also relevant for hip extension in sprinting. Both variations matter. Performing both builds balanced strength.

Olympic lift variations (power cleans, hang cleans, clean pulls) develop rate of force development in triple extension (ankle, knee, hip extension simultaneously)—the exact movement pattern of powerful sprint acceleration. These movements are highly transferable but technically demanding. An athlete needs proper coaching to perform them safely. At Acceleration Australia, we include them because their specificity is unmatched, but only for athletes with solid movement foundations.

Single-leg movements (Bulgarian split squats, single-leg deadlifts, single-leg squats) develop unilateral strength and prevent asymmetries. A 40-yard dash requires balanced bilateral acceleration. Single-leg work ensures both legs are contributing equally. Two to three sets of six to eight reps per leg, once per week, is sufficient.

Plyometric movements (box jumps, bounds, depth jumps, jump squats) develop elastic recoil and rate of force development. These movements teach your nervous system to express strength quickly. They’re not strength-building in the traditional sense (you don’t get heavier loads), but they’re essential for translating strength into speed. A 40-yard dash improvement program without plyometrics leaves significant gains on the table.

Resisted acceleration work (sled sprints, band-resisted sprints, weighted vest sprints) combines strength and speed work in a sport-specific pattern. You’re sprinting—the exact movement—but against external resistance that requires more force. The nervous system learns to generate more force during acceleration in the exact movement pattern you’re trying to improve. This transfers almost directly to unresisted acceleration performance.

Movement-prep and technique work (A-skips, high knees, bounding drills, single-leg hops) develop running mechanics and teach the nervous system to coordinate the movements of acceleration efficiently. A stronger athlete with poor mechanics won’t improve their 40-yard dash. A mechanically efficient athlete with moderate strength will. Technique work is foundational.

Exercises that are less relevant: isolated leg exercises (leg extensions, leg curls, calf raises) develop individual muscles but don’t translate to acceleration performance as directly. Excess upper body work (for a 40-yard dash program) takes energy and recovery capacity from lower body work. High-rep, low-intensity leg work builds muscular endurance but doesn’t develop the maximum strength or power needed for explosive acceleration.

Recovery and Periodisation: Making 40-Yard Dash Strength Training Sustainable

Strength training for 40-yard dash improvement is demanding. Your nervous system is working hard. Your muscles are working hard. Recovery isn’t optional—it’s when the adaptation happens.

Here at Acceleration Australia, we structure 40-yard dash training blocks with built-in recovery phases. A 12-week program might look like: 4 weeks of progressive load increases (building maximum strength), 4 weeks of explosive power emphasis (building rate of force development), 4 weeks of sharpening (maintaining all qualities while optimising running mechanics). At week 13, athletes take a deload week—reduced volume, reduced intensity—before the next 12-week block.

Within each week, recovery is managed through session sequencing. Heavy maximum strength work on Monday requires at least one full recovery day before explosive work on Wednesday. Explosive work on Wednesday requires one full recovery day before speed work on Friday. The progression is intelligent: maximum strength provides the foundation. Explosive strength applies that foundation with speed. Speed work maintains and refines everything.

Nutrition and sleep are where most athletes leave gains on the table. You can’t improve strength without adequate protein intake (roughly 0.7–1.0 grams per pound of body weight daily for strength athletes). You can’t recover from strength training without adequate sleep (7–9 hours nightly, consistently). These aren’t nuances—they’re non-negotiable. At Acceleration Australia, we focus exclusively on training stimulus; for nutrition guidance, we’d point you toward a qualified sports dietitian.

Central nervous system fatigue accumulates. After 8–12 weeks of intense strength training, your nervous system fatigues even if you feel fine. A deload week—continuing the same movements but at 50–60% of normal intensity and volume—allows recovery. You won’t lose strength in one week. You’ll feel refreshed and return stronger.

• Weekly structure: maximum strength (heavy, low reps) Monday → recovery day → explosive strength (power, Olympic lifts) Wednesday → recovery day → speed emphasis (plyometrics, unloaded acceleration) Friday → recovery through weekend, allowing 48+ hours recovery between high-intensity sessions • 12-week periodisation: weeks 1–4 build maximum strength foundation with progressive load increases; weeks 5–8 maintain strength while building explosive power and rate of force development; weeks 9–12 maintain all qualities while sharpening running mechanics and refining acceleration patterns • Deload and recovery cycles: incorporate one deload week every 4 weeks (reduced to 50–60% normal volume and intensity) and full recovery weeks every 12 weeks, allowing nervous system and muscular system complete restoration before progression

Combining Strength Training With Speed Work: The Complete Formula

Strength training is powerful for 40-yard dash improvement, but it’s not the complete picture. Running mechanics, acceleration technique, and sport-specific speed development are equally important.

The most effective 40-yard dash improvement programs combine strength training with technique refinement and speed work. A 12-week program might dedicate Monday to heavy strength, Wednesday to explosive power, and Friday to speed-focused work. But those sessions also include movement preparation and acceleration-specific technique.

Here’s what integration looks like: On Wednesday’s explosive strength day, after warm-up and before heavy power work, you perform acceleration technique drills—10–15 metres of focus on first-step mechanics, knee drive, arm swing, body angle. You’re teaching the nervous system the efficient movement pattern while the nervous system is relatively fresh. Then you perform power cleans (developing rate of force development in a movement similar to acceleration). Then you do resisted acceleration (applying that developed power in the exact movement of the 40-yard dash).

On Friday’s speed day, you warm up with running-specific movement prep, perform plyometrics to develop elastic recoil, then perform unloaded 10–20 metre acceleration efforts at maximum intensity. The athlete is testing whether the strength built earlier in the week translates to unloaded speed.

By combining these elements—strength, power development, technique refinement, and speed work—within a structured program, athletes see compound improvements. The strength provides the foundation. The power work amplifies it. The technique work channels it efficiently. The speed work tests it and reinforces it.

This is why here at Acceleration Australia, we don’t separate 40-yard dash improvement into “strength training phase” and “speed training phase.” We integrate them systematically across a 12-week block so every element supports every other element.

Testing and Measuring 40-Yard Dash Progress

What you measure shapes what you improve. The 40-yard dash itself is the ultimate measure—timing it at the start of training (baseline), at weeks 6 and 12 (progress points), and at the end of the program tells you exactly whether the training worked.

But testing only the 40-yard dash time misses information. Intermediate times are valuable. Some athletes improve their first 10 metres (indicating acceleration gains) but show less improvement in the final 20 metres (indicating less top-end speed development). Others improve their final 20 metres more than their first 10. These distinctions tell you whether strength training is working as intended and whether the program needs adjustment.

At Acceleration Australia, we test 40-yard dash athletes at multiple intervals: 0–10 metre split, 0–20 metre split, 0–40 metre total. We also assess movement quality during sprinting via video analysis—checking knee drive, hip extension, arm swing, body lean, and foot strike pattern. We might test maximum strength (one-rep max squat or deadlift) to track strength progression. We test vertical jump as a proxy for lower body power development.

The complete picture of improvement includes not just 40-yard dash time but the intermediate metrics and movement quality that drive it. An athlete who improves their 0–10 metre time significantly while maintaining their 0–40 metre time is showing exactly what we expect: strength training improving acceleration. An athlete whose 0–10 metre time stagnates while overall time improves is showing that the strength work isn’t translating to sport-specific speed—the program needs adjustment.

Testing every 4 weeks (rather than waiting 12 weeks for the final test) allows program refinement. If data shows no improvement after 4 weeks, adjustment happens immediately—perhaps increasing load slightly, adjusting exercise selection, or refining running mechanics coaching.

Position and Sport-Specific Application of 40-Yard Dash Training

The 40-yard dash matters differently across sports. Programming for it varies accordingly.

For American football athletes recruiting to college, the 40-yard dash is a standardised measure. Scouts time it in controlled conditions. Improvement matters directly to recruitment prospects. Strength training emphasis is high—development of maximum strength and explosive power is prioritised because the correlation between 40-yard dash time and athletic selection is direct.

For rugby league or AFL athletes, the 40-yard dash isn’t typically a standardised test, but repeated sprint ability and acceleration over shorter distances (10–20 metres) matter significantly. Here at Acceleration Australia, we often work with rugby league and AFL athletes on acceleration development through strength training, even if they’re not specifically targeting 40-yard dash performance. The improvements in first-step quickness and explosive acceleration transfer to sport performance.

For track and field sprinters, strength training underpins all sprint performance. 40-yard dash (roughly 36 metres) isn’t their primary race, but the acceleration mechanics and strength foundation are identical. Strength training is central to their entire program.

For other sports (basketball, soccer, cricket), sudden acceleration over short distances (5–10 metres) matters more than 40-yard dash time. Strength training still improves these qualities, but the program emphasis might shift slightly toward single-leg balance and lateral strength (relevant for multi-directional sports) rather than pure linear acceleration.

Here at Acceleration Australia, we tailor 40-yard dash strength training to the athlete’s sport context. American football athletes might spend 12 weeks optimising pure 40-yard dash performance. Rugby league athletes might spend 12 weeks improving acceleration, with 40-yard dash time as one measure among several metrics. The strength training principles remain consistent. The emphasis and programming details vary.

Building Your 40-Yard Dash Strength Program

Improving 40-yard dash time through strength training is measurable, achievable, and systematic. It requires understanding the physics of acceleration, building the right strength qualities, programming intelligently, and maintaining consistency across a 12-week block.

If you’re serious about improving your 40-yard dash, whether you’re an American football athlete recruiting to college level, a rugby league prospect working toward professional selection, a track and field sprinter refining your acceleration mechanics, or an athlete in any sport where explosive linear speed matters, we’d love to help. Here at Acceleration Australia, our coaches across our Brisbane Central, Brisbane East, Brisbane North, Brisbane South, and Gold Coast centres regularly work with athletes specifically targeting 40-yard dash improvement.

We start with an athletic performance testing session that measures your current 40-yard dash time, tests your lower body strength (one-rep max squat or deadlift), assesses your movement mechanics via video analysis, and identifies your specific strength gaps. Many athletes assume their limitation is top-end speed; testing usually reveals that acceleration power or asymmetries between legs are the real bottlenecks. From there, we write a personalised 12-week strength training program specifically targeting your individual gaps, your sport context, and your recruitment or competition timeline.

We also deliver 40-yard dash strength programming online through our AccelerWare platform if you’re located outside Brisbane or the Gold Coast—the same testing methodology, the same periodised program structure, the same video-based movement coaching that ensures your mechanics stay efficient as load increases. Regular video coaching check-ins keep you accountable to the program and allow adjustments if progress plateaus.

Strength training improves the 40-yard dash. Physics backs it. Data confirms it. Consistency makes it happen. Let’s build the strength that gets you faster when it matters most.