Billy Hussy and the
Best Recruiting Pitch
I Ever Heard

Billy Hussy was the captain of my Rep AAA hockey team. Short, explosive, a natural leader. The kind of kid who didn’t need to say much because when he did, you listened.

One spring he came to me with a proposition. There was a lacrosse team being put together. Mostly the same guys from the hockey team, which should have told me something about the sport right there. And he had one line to sell me on it.

“You can crosscheck people,” he said. “And you won’t get a penalty.”

I was hooked before the first practice.

What followed was years of learning the game and all of its wonderful lessons. Keep your head on a swivel. Drop your shoulder when you’re cutting around a pick. Don’t complain about the bruises on your arms. And when you’re on. Run as fast as you can.

The shifts are short. There’s no coasting. You go until they pull you, and then you go again.

As my dad used to say: speed kills. Lacrosse taught me what he meant.

The Wall Doesn’t
Lie to You.

Every lacrosse athlete knows the wall.

Not team practice. Not a coach watching from the sideline. The wall is what you do alone. An Indian rubber ball, a brick wall, and whatever time you have. You throw. The ball comes back. You catch it. You throw again. Over and over, for hours, in the heat or the cold, with nobody watching and nobody clapping.

You can get lost in it. The rhythm of it. The ball finds the cracks in the bricks and comes back at strange angles and you learn to adjust without thinking about adjusting. You get better without knowing you’re getting better. A thousand throws. Five thousand. You stop counting.

The wall is a strict teacher. It has no patience for half-measures. A bad throw comes back as a bad catch. Or no catch at all. There’s no way to cheat it, no way to pretend. You either caught it or the ball bounced past you and you have to go pick it up off the ground and start again.

No spectators. No fanfare. No buddy to tell you you’re doing well.

Just you and the wall, and the slow accumulation of something real.

I didn’t understand at the time what those hours were building. I was just a kid throwing a ball. But that kind of solitary, repetitive, unspectacular work, done consistently, for years, without anyone making you, creates a particular type of person.

You’ve met them. They don’t talk much. They don’t need to.

Boots.

It was summer. Hot and humid the way only southern Ontario can be. We were in full gear, helmets included, running laps around the outside of the rink.

Thirteen or fourteen years old. The laps felt endless. Each time I came around the bend I could see Billy Hussy’s dad standing there at the same spot. Watching. Not saying anything. Just watching.

Every lap I genuinely hoped that this one would be the last. That when I came around again he’d raise his hand and call it. That the suffering would be mercifully over.

Each time: nothing. He stood there. Stoic. Said nothing. You kept running.

I was exposed early in life to Kipling’s poem “Boots.” It was written about British soldiers in the Boer War. The relentless, grinding march from Bloemfontein to Pretoria. Hundreds of miles on foot. The psychological weight of endless repetition. Not battle. Just the marching. Always more marching.

That’s lacrosse conditioning in that era. No stopping. No discharge in the war. You run until you’re told to stop, and you’re not told to stop for a very long time.

It sounds brutal. It was. But something happens to you in those laps. You stop fighting the repetition and you learn to inhabit it. You find a rhythm inside the suffering. You discover that you can keep going past the point where you thought you couldn’t.

That lesson doesn’t leave you.

The Picks and Screens
Aren’t Why They
Move So Well.

Ask most people why box lacrosse players are exceptional movers and you’ll get the same answer: the picks, the screens, the constant change of direction, the physicality of the game.

That’s part of it. But it’s not the reason.

The reason is the wall. The reason is Boots. The reason is that lacrosse, more than almost any other sport, selects for and develops people who will do the same thing alone, without applause, for as long as it takes, until it’s right. That mentality precedes the sport skills. It’s what makes the sport skills possible at all.

And it’s what makes lacrosse players respond to a very specific kind of training: the kind where you do a drill, watch the video of yourself doing it, hear one cue, and do it again. One rep at a time. No shortcuts. No pretending.

The wall already taught them how to do this. They just didn’t know they were being prepared.

When Everyone’s
Already Good, the
Margin Is Precision.

Box lacrosse at the competitive level has a problem most sports don’t. Everyone is already a good mover. The picks and screens and concrete floor have seen to that. The physical contact has built strength most youth athletes in other sports don’t have until years later.

So when everyone can change direction, when everyone is strong and fast and physical. What separates the best from the very good?

Not more conditioning. Not more skill work. Precision. The fractional improvements in how the cut is executed. The shin angle at the plant foot. The timing of the deceleration going into the change. Things invisible to the eye. Visible on video. And things that compound over thousands of repetitions.

Entry into the cut. Foot placement, shin angle, centre of mass. Coached explicitly, every rep.

The plant and redirect. One cue. Then go again. The wall mentality, applied to mechanics.

Video feedback between every set. Not at the end of the session. The athlete watches. Gets one cue. Goes again. This is not complicated. But it requires the willingness to do the same thing repeatedly, receive honest feedback, and not flinch from it.

Lacrosse players already know how to do that. The wall taught them.

Hand to the post confirms full deceleration before re-acceleration. The hardest thing to train. And the thing that creates separation at the elite level in box lacrosse.

Exxentric KBOX. Building the eccentric tissue resilience to brake hard, repeatedly, all game. Box lacrosse is physical and long. The athlete who maintains deceleration quality into the third period has an advantage that grows as the game does.

Woodway Force. The first four to six explosive steps after the cut. Pure neural work. This is where the separation appears on the floor.

He Walked In
at 12.
Didn’t Say Much.

Ashton Craddock came in the way lacrosse players come in. Quiet. Observant. Not there to perform for anyone. Just there to work.

He already had the wall in him. You could tell. Not because he said anything about it. He didn’t. But because of the way he took a cue. Heard it once. Processed it. Applied it on the next rep without needing it repeated. That kind of coachability doesn’t come from talent. It comes from years of being alone with something hard and learning to self-correct.

Session after session. One block on top of the next. The coordination drills that felt strange. The cutting mechanics that took weeks to click. The gym work that was hard and slow and didn’t feel like lacrosse training at all. The video between every set. One cue, go again.

Quietly. Determinedly. In the shadows.

No proclamations. Just the work.

A very high ceiling, this one. Still getting better. Still observing. Still working.

Thousands of
Kilometres Away.
Exactly the Same.

My second lacrosse career was in Calgary. Senior Mountaineers. A man now, not a kid, but stepping back onto the floor and finding the same sport waiting for me.

Same concrete. Same shifts. Same requirement to run as fast as you can when you’re on. Same bruises on the forearms that you don’t complain about. Same culture of people who’d been to the wall and back enough times that they didn’t need to announce it to anyone.

That’s the thing about lacrosse. It doesn’t change. The wall is the wall whether you find it in southern Ontario or Calgary. Whether you’re 13 or 33. It asks the same thing of you every time.

The sport selects for people who answer that ask without making a fuss about it.

And those people, when they show up in a training environment that matches their mentality, that gives them specific feedback and asks them to apply it one rep at a time, respond in a way that other athletes take much longer to develop.

The wall already did the work. We just build on top of it.

What This Looks
Like in Practice

Jungle Athletics in Calgary trains box lacrosse athletes ages 8–14 using video feedback, progressive deceleration mechanics, and movement training built on the same developmental framework used in Olympic-level sport. Every athlete starts with a Free Game Speed Analysis: 60 minutes at our facility at 134 71 Ave SE in Calgary, where we assess movement quality, deceleration capacity, and which training program is the right fit. No obligation. No sales pitch. Just clarity on where your athlete is and what would move them forward.

The athletes who respond best to this training are the ones who already know what it means to work alone without applause. Lacrosse players, in our experience, almost always qualify.

Sometimes You Think
You Know What
You’re Doing.

Sometimes you think your way is correct and it can’t possibly not work. Sometimes in life you learn that you are wrong.

I was a young coach. First real team. The Luge B team out of the Olympic Oval in Calgary, under Jason Poole. Jason was a jolly and fun guy — until you screwed up. Then he could put you in a boiler room of interrogation and keep turning up the heat. He expected a damn good reason why you were doing things to his athletes. Always a reason. Always.

I’d earned the placement by surviving months of being grilled by Matt Jordan, Jason Poole, and Scott Maw. The most demanding coaches I’d ever encountered. They dealt exclusively in high performance. That thin slice of athletic training right on the edge of what’s possible for humans to attain. I’d passed their early tests. Now it was time to see if I could actually make someone better.

So I went to work. And to my surprise, most of the athletes made amazing progress. One guy went from a 70kg power clean to 100kg. It was extraordinary. Like Midas, everything I touched turned to gold. The young superstar strength coach was making a name for himself.

Everything was good.

Except one thing.

One athlete got worse. Way worse. And at the time I didn’t know why and I couldn’t fix it.

That’s what I want to talk about. The athlete who gets worse. Why it happens. And why the harder you push, the worse it gets.

But first. Maybe we’re talking about your kid.

This Is How
It Starts.

Your athlete begins training with a team or a new coach. The early results are exciting. They get stronger. Their body starts to change in ways you haven’t seen before. They’re more physical in games — outrunning players they didn’t used to. Their confidence skyrockets. They finish that first season on cloud nine.

You double down. They’re moving up a level. Everything points forward.

Somewhere in the next season, or maybe the one after, something changes.

As the season goes on, other things appear. Even though the performance coach swears they’re getting faster, they actually look slower. You fight it. You tell yourself they’re just tired from a big tournament weekend. But your eyes tell you something different.

You start watching practice more closely. And they look sharp there. But it doesn’t transfer to games.

Then the little injuries start. A hamstring that gets slightly pulled in the third game of a weekend tournament. Hip tightness. Foot pain that comes and goes. Then a growth spurt — and now everything is just worse. Nothing obvious has happened. They’re training hard, doing extra skills sessions, hitting the weight room. But nothing is working.

This is the feedback loop.

And once you’re stuck in it, it feels like there’s no way out.

There is. But first you need to understand what’s actually happening. Because I promise you, it isn’t what you think.

What’s Actually
Happening Inside
the Loop

My athlete on the Luge B team wasn’t getting worse because he wasn’t trying. He wasn’t getting worse because his program was wrong. He was getting worse because his body had encountered a load it couldn’t manage — and had made a completely rational decision to protect itself from ever encountering that load again.

His nervous system was smarter than I was at the time.

Here’s the cascade, step by step:

Each iteration of the loop increases the mismatch, deepens the protective behaviour, and moves the athlete further from the braking capacity they need. Performance plateaus or declines. Injury risk rises. The athlete looks like they’ve stopped developing. The problem is structural, not motivational.

That was my athlete on the Luge team. His body had made a completely logical decision to protect itself. I was pushing harder. He was declining faster. I was making things worse without understanding why.

What You See vs
What’s Happening

The cruelest part of the feedback loop is that almost every visible symptom points coaches and parents toward the wrong explanation. The harder you push in the wrong direction, the worse it gets.

How to Break
the Loop

The feedback loop is not permanent. It can be interrupted and reversed. But it requires patience and a willingness to address the root cause rather than the symptoms.

More sprints won’t fix it. More skills sessions won’t fix it. More conditioning won’t fix it. The problem is deceleration capacity. The solution is deceleration training. Everything else is noise.

This Isn’t Rare.
It’s on Every Team.

The deceleration feedback loop isn’t a phenomenon unique to high-performance athletes who’ve pushed past their limits. It’s happening across every level of youth sport, on every team, in every city. It’s happening to athletes who are being well-coached in every other respect.

The athletes trapped in the loop aren’t lazy or unmotivated. Their bodies are doing exactly what bodies are designed to do — protect tissue from loads it can’t safely manage. The solution isn’t to push harder through the protection signal. It’s to build the capacity that makes the protection signal unnecessary.

I didn’t know that when I was working with the Luge B team. I was pushing harder. He was getting worse. I thought the problem was effort. It was load management.

That’s the lesson I’ve carried into every athlete relationship since. When someone is declining for no obvious reason, the first question isn’t “how do we push harder?” It’s “what is the body protecting itself from — and why?”

Answer that question first. Everything else follows.

He Wasn’t Faster.
He Was Playing
a Different Game.

There was a receiver I could never tackle.

I was playing linebacker. I knew the play before the snap. I knew who had the ball, where it was going, and roughly when. I had every advantage a defender can have — information, positioning, a good angle.

Didn’t matter.

He’d get the ball and I’d run hard toward the spot he was going to be. And just before I got there, something would happen. A stop. A pause. A sudden downshift that froze me for a half-second. Then an explosion in a completely different direction.

And I’d skid past the space he’d just left.

Every time.

The one time I managed to stay with him through the initial move, he just did it again. Downshifted. Let me close the gap. Then shifted up so fast my legs didn’t have time to answer. I tied myself in knots trying to match a tempo I couldn’t read.

My dad used to say speed kills. And I thought that was the problem — that he was simply faster than me.

He wasn’t. Not in a straight line. I could stay with him in a straight line.

What he had was something different. He could stop faster than I could react to the stop. He could change velocity so abruptly — down and then up — that by the time my body processed what was happening, he was already in a different gear heading somewhere else.

I was playing checkers. He was playing it faster and simpler. Stop. Go. Stop. Gone.

It took me years of coaching to understand what was actually happening in those exchanges. It wasn’t a speed problem. It was a braking problem. His deceleration was so sharp that it functioned as an offensive weapon. And I had no answer for it because no one had ever taught me that braking was something you trained.

That’s the article.

Everyone’s Training
the Exit.

Ask most coaches what change of direction training looks like and you’ll hear the same things. Cones. Speed ladders. Reactive drills. Short sprints in different directions. Fast feet. Explosive push-off.

All of that is real. None of it is wrong.

But it’s training the exit. The re-acceleration side of the direction change. The part that happens after the hard work is done.

The reason most athletes lose change-of-direction exchanges isn’t that they can’t re-accelerate fast enough. It’s that they can’t decelerate effectively enough to get into position to re-accelerate. They arrive at the cut still carrying momentum they haven’t managed. The exit is compromised before it starts.

When I was chasing that receiver, I wasn’t losing on the re-acceleration. I was losing on the stop. By the time he’d already redirected, I was still carrying momentum in the wrong direction. The contest was over before I got to the part of the play I’d trained for.

What Wins at
Each Angle

Not all direction changes are the same. The angle of the cut determines which physical quality decides the outcome. Research from Dos Santos et al. makes this explicit — deceleration and braking demands are angle and velocity dependent.

Here’s what that actually means:

The plays that decide games in APDL soccer, hockey, and lacrosse are almost entirely in the 90 to 180 degree range. The cuts that beat defenders. The pivots that open lanes. The recovery runs that prevent goals. All braking dominated.

That receiver wasn’t running 45 degree routes when he was embarrassing me. He was stopping and reversing. The sharpest angles. The ones where his braking quality was the only thing that mattered. The only thing I couldn’t match.

Going Faster Makes
Braking More Important,
Not Less

Here’s the part that catches most coaches off guard. As approach velocity increases, the deceleration demand increases with it. A direction change at 5 m/s requires a certain braking capacity. The same cut at 7 m/s requires roughly double the braking work in the same number of steps.

Most change of direction training is done at drill speed, maybe 60 to 70 percent of game pace. The braking demand at that speed and the braking demand at full match intensity are not the same thing. An athlete who looks sharp and fluid in a cone drill can be completely unprepared for what happens to those same mechanics when the speed is real.

When that receiver downshifted on me, it wasn’t just that he stopped fast. It was that he could stop that fast from full speed, under game pressure, with a defender closing. That capacity only comes from training the braking demand at the actual velocity it needs to work at.

The Stop Is Where
the Game Is Won

That’s what was happening on that football field. I wasn’t slow. My reaction time wasn’t poor. I simply couldn’t decelerate at the angle and velocity that the exchange demanded. And nobody had ever identified that as a trainable gap, let alone trained it.

Build the Brakes
Before You Build
the Engine

The shift isn’t complicated. It doesn’t mean abandoning speed work. It means sequencing things correctly and giving the braking side of direction change the dedicated attention it deserves.

The Fastest Athletes
in a Game Are the
Best Brakers in a Game

I spent years thinking I lost those exchanges because I wasn’t fast enough. I wasn’t. I lost them because my braking couldn’t match his.

That’s the conversation nobody is having in most youth sport programs. Speed gets trained. Acceleration gets trained. Footwork gets trained. The braking capacity that governs outcomes at the angles that actually decide games, the sharp cuts, the reversals, the downshift-then-explode move that tied me in knots, gets assumed. It doesn’t get coached. It doesn’t get measured. It doesn’t get developed.

Your athlete is playing against kids who have that capacity. Some of them were born with a feel for it. Most of them learned it somewhere.

It’s trainable. That’s the point.

The U of C Bubble.
My Son’s Tryout.
The Thing I Couldn’t
Stop Watching.

I was at my son’s football tryout at the Shouldice field bubble.

If you’ve been to one of these, you know how it goes. It’s an all-day event. Hundreds of athletes. Testing stations everywhere. Bench press. Vertical jump. Broad jump. 40-yard dash. Height. Weight.

Loud. Hot. After a while, everything starts to blur together.

I spent most of the morning trying to figure out who was actually good. And I couldn’t. You could see small differences if you paid attention. One kid ran a little smoother. Another had better arm action. Some had cleaner mechanics. But nothing obvious. Nothing that clearly separated one athlete from another.

Then the testing ended and the receivers moved into individual work. Routes. Cuts. Pylons. Catches.

Still hard to tell.

And then the defensive backs came out.

That’s when it changed.

Immediately, the differences became obvious. There were a few receivers who could create space without looking faster. They weren’t blowing by anyone in a straight line. But when it was time to break, when it was time to change direction, they were gone.

Separation. Instantly.

The defender wasn’t reacting late. He was already losing.

And it wasn’t the final step, the plant, that made the difference.

It was the step before it.

Some athletes had it. Most didn’t.

Once you saw it, you couldn’t unsee it.

What Shows Up at a
Tryout Isn’t Random

What I was watching at that tryout isn’t a talent gap. It’s a training gap. The athletes who create separation aren’t relying on quick feet or instincts. They’re doing something specific — something measurable — in the steps before the final plant.

And when you break deceleration down properly, the data confirms exactly what you see in those moments.

Most coaches, and most programs, think about deceleration as the final stop. The plant. The moment the athlete halts their momentum. That moment matters.

But it’s not where the most important work happens.

The most important work happens before it.

What the Data
Actually Shows

Dr. Damian Harper’s deceleration research captured motion data across the full braking sequence and split it into two phases. The force profile that came back is not what most coaches expect.

The average across the full sequence was −4.76 m/s². But averages hide the shape of the load. The late phase is substantially more intense — and it follows a phase that has already asked a lot of the athlete.

Those receivers I watched at the tryout who were already gone before the defender reacted? They were managing that early phase better than everyone else on the field. They just didn’t know the numbers behind what they were doing.

Why the Step Before
the Stop Is Everything

Here’s the finding that changes how you should think about deceleration training:

Athletes who can brake harder in the preparatory steps, who can tolerate that early high-force braking, arrive at the terminal step having already reduced more of their momentum. That means lower absolute forces at the final plant. Better body position. More control going into re-acceleration.

A better early phase creates a safer, more effective late phase.

The inverse is where problems happen. Athletes who delay braking, who don’t manage the early steps, arrive at the final plant still carrying too much speed. The forces spike. The hamstring is overloaded. The knee is exposed. The position is compromised. And everything happens too fast to fix.

This is also why the separation those receivers were creating wasn’t happening at the plant. It was happening two or three steps before it. They’d already done the work. The cut was just the expression of it.

This Is Where
Separation Actually
Happens

There’s a performance dimension here that goes beyond injury prevention, and it’s the one that matters most to parents watching from the sideline.

The athlete who brakes earlier and better is already positioned to move again. They’re not stopping. They’re transitioning. That’s why they look faster without being faster in a straight line.

On a game pitch, when two players are running and one manages the preparatory steps better, that player is changing direction while the other is still trying to kill momentum. That’s not a speed advantage. It’s a braking advantage.

Three yards of space that wasn’t there a second ago.

In APDL soccer, hockey, lacrosse, the cuts that decide games are sharp ones. 90 to 180 degrees. Those cuts are almost entirely braking problems, not speed problems. The athlete who has trained the preparatory steps owns those moments. The athlete who hasn’t is always a step behind and doesn’t know why.

What 5.9× Bodyweight
Actually Means

Peak ground reaction force during max deceleration, at the terminal step, reaches approximately 5.9 times the athlete’s bodyweight. For a 60kg youth athlete, that’s over 350kg of force absorbed through one leg in about 25 milliseconds.

Deceleration force is 2.7 times higher than sprinting force. It arrives 8 times faster. There is no time to react once the foot is on the ground. The only protection is preparation before it.

How to Actually
Coach This

Knowing that the preparatory steps are where the most important work happens changes how sessions should be designed. Here’s what that looks like in practice:

The Step Nobody Trains
Is the One That
Matters Most

At that tryout at the Shouldice bubble, I wasn’t watching athletes who were gifted with better instincts. I was watching athletes whose preparatory steps were better — who could handle the early braking load, arrive at the final plant with less residual momentum, and transition out of it cleanly.

Most athletes train the stop. The ones who separate themselves train the steps before it. That’s where forces are distributed, positions are set, and outcomes are decided.

The athlete who handles the preparatory phase arrives safer, moves cleaner, and creates more space. Not because they’re faster. Because their braking quality is better in the moments nobody is watching.

Train that. Measure it. Coach it explicitly. The terminal step will take care of itself.

Lake Bonavista,
Summer of My 19th Year

I was 19 years old and working at Lake Bonavista in Calgary. Summer job. One of those guys driving a Gator around the property — “wasting gas,” as one of the older workers liked to say. We cut grass, emptied garbage cans, a thousand small things that make a private park with a lake feel like somewhere worth being on a hot day.

And it was worth being. Summer-starved Calgarians would flood that place the moment the temperature climbed. Swimming, tennis, canoes, boat rentals. You could close your eyes on a warm weekend and between the screams of laughter, the music, and the sun on your face, it felt like a resort. For a 19-year-old kid working outdoors all day, not bad.

There was a dock. Long one — probably 20 yards. And if you could run, you could get up to a real clip before you launched off the end into the water.

I could run. I was on the U of C track team at the time.

The dock got wet sometimes. You had to manage that. You learned to feel the surface under your feet and make adjustments. I’d done it plenty of times.

Then one day after work, I was sprinting down it at full speed — and right at the end of the dock, just before I jumped, I slipped.

I was rocking backward. Time doing that thing it does. I was genuinely calculating whether my head was going to hit the edge of the dock on the way down.

It didn’t. The water took me. I was fine.

But my hamstring was not fine. I had done a number on it — the worst I’d ever felt. And floating there in the water at Lake Bonavista, I learned something I’ve never forgotten.

Here’s what I realized floating in that water: when your lower leg is travelling fast, the only thing stopping the foot from going too far forward is your hamstring. That’s it. No backup. And if it’s not ready for that moment, it tears.

When I slipped, my lower leg shot forward uncontrolled. My hamstring fired at full force to stop it. Full stretch. Full speed. Completely unprepared for what was coming. That’s not a sprinting injury. That’s a braking injury. The muscle failed because it was asked to absorb more eccentric force than it was ready for, faster than it had time to prepare.

That moment in the water is the clearest way I know to explain why hamstring injuries happen. And why almost every training program in youth sport is looking at the wrong thing.

Everyone Gets
This Backwards

When a soccer player or hockey player pulls a hamstring, everyone reaches for the same explanation: they were sprinting too hard, pushed too much, the muscle gave out. Rest. Rehab. Return to play. Repeat next season.

Tidy story. Wrong most of the time.

Not wrong as in sprinting never causes hamstring injuries — it does. But in multi-directional sports, sprinting is often a minority cause. Look at how hamstring injuries are actually categorized in the research:

In multi-directional sports, research consistently shows braking as a leading mechanism. Not sprinting. Not contact. Braking.

That’s what happened to me on the dock. My foot shot forward. My hamstring fired violently to stop it. The tissue couldn’t handle it.

That exact mechanism is happening in your athlete’s sport every weekend. The moment they react to a defender, plant hard to change direction, stop unexpectedly.

Why the Hamstring
Fails During Braking

To understand why braking is so hard on the hamstring, you need to understand what’s actually being asked of it. The demand is completely different from what happens when you’re accelerating.

During sprinting, the hamstring works as a propulsive force generator. It operates in a rhythm the body knows. The athlete controls when to go. The force is relatively predictable.

During braking, the hamstring must absorb and control massive force while the muscle is rapidly lengthening under load. High eccentric velocity at high force. The foot hits the ground in front of the body, the body decelerates, and the hamstring has milliseconds to manage the whole event.

The research from Dr. Damian Harper puts numbers on it: the late braking phase reaches −5.44 m/s² of deceleration — 32% higher force than the early phase at −4.13 m/s². The hamstring isn’t failing at the beginning of a stop. It’s failing at the hardest part of the stop, when everything is at maximum simultaneously.

This mechanism is predictable. Well-documented. And significantly more preventable than most programs assume — if athletes are progressively trained for these demands before they encounter them at full speed in a game.

What Trained Athletes
Do That Others Don’t

Athletes who are systematically exposed to high eccentric deceleration loads develop tissue properties that protect them. The hamstring’s ability to generate eccentric force improves. Its capacity to handle high eccentric velocity improves. The muscle gets better at exactly the thing that was tearing it.

But here’s what most programs miss entirely: it’s not just strength.

The deeper adaptation is timing. A trained athlete’s hamstring fires before the foot hits the ground during a hard stop — not after. That split-second preparation is what creates the stiffness needed to handle the impact. Without it, the muscle absorbs the full force unbraced. That’s the difference between an athlete who brakes safely and one who doesn’t.

An athlete who has never trained deceleration is in that same position every time they brake hard under pressure. The slip is just a defender cutting across them. Or a ball played behind them that forces a direction change. The physics are identical.

If Half of Hamstring
Injuries Come From
Braking, Train the Braking

The prescription writes itself. Or it should. Here’s what a program that actually addresses this looks like:

Stop Treating
the Injury.
Train the Cause.

Hamstring injuries are not bad luck. They are not inevitable. In multi-directional sports, almost half of them come from a predictable, well-understood mechanism — one that targeted deceleration training can significantly reduce.

I learned this floating in that water at Lake Bonavista. That same mechanism is happening to athletes across Calgary every weekend. In APDL soccer. In hockey. In lacrosse. The dock is just where I finally understood it clearly.

The real question is whether your athlete’s training reflects the way hamstrings actually get overloaded in their sport. For most youth athletes, it doesn’t.

That can change.