BULLETPROOF YOUR KNEES & Level Up Your Performance

Straight-forward exercise process to help athletes avoid injuries and perform at a higher level

Female soccer athletes, injury prevention


On your own, whenever you want!


Easy to Incorporate into Warm-up


Help your child be more PROTECTED from preventable injuries


There are 200,000 ACL injuries per year in the U.S.

Even after rehab, 1 in 4 will suffer a SECOND ACL tear within the first 2 years after surgery; and most athletes say their knee is never the same. They report weakness, pain, and fear of re-injury as factors that stop them from playing all out.  

The worst part?

Knee injuries are largely preventable and no one is doing anything about it.  UNTIL NOW!


A specialized “neuromuscular training program” created by injury prevention expert, Dr. Leslie Desrosiers, DPT, OCS, CSCS, to help you get stronger, prevent injuries, and perform at a higher level.

This 6-week online course includes:

Featured In


Nearly 3000 members have joined ACL Strong and the feedback has been AMAZING! 


After injuring her knee in soccer, Isabelle’s pain wouldn’t go away. Fearing re-injury and having to play through the pain, Isabelle luckily found ACL Strong.

“I could tell that I was getting a lot stronger and that my knee was getting a lot better because I wasn’t feeling pain during practices all the time.”


Coach Linda is proactive about rehab with her basketball players, but found they often don’t have much time. She wanted a program that was easy and doable. After finding ACL Strong, Linda has now gone through the program with her players for two years and said it makes a big difference, seeing improvement in as little as 4 weeks.

“I really encourage you to do it as a team together.  It’s quick and quite effective.”

No one's career should be cut short by a preventable injury.


Want to play the sports you love without fear of knee injury?  Want to get stronger and perform better?
It’s easy to get started!

1. Register for the Course

The Classic Course is for competitive athletes in sports such as soccer, basketball, lacrosse, volleyball, football, rugby, etc

2. Follow the Exercise Plan 

20 minutes, 3 times per week for 4-6 weeks

3. Become a Stronger, More Resilient Athlete

With lifetime access to the Classic Course, our athletes can reach their full potential and achieve their dreams!


Be careful of free knee exercises online.  Many sites start you off doing advanced movements that can injure you.  ACL Strong’s progressive 6-week online course offers a simple, step-by-step blueprint to bulletproof your knees.  You’ll start with easier exercises to build a strong foundation, and they will advance with you as you get stronger.  You’ll gain:


Critical movement and exercises to promote unshakable knees:


It's not enough to just be strong, you have to move properly and land safely


Quickness, Speed, and Mobility to improve performance and avoid injury


We offer a 30 day, no-questions-asked refund.  Nearly 3000 people have joined ACL Strong and the feedback has been amazing!  So many members return each year to repeat the course!  The exercises are quick and easy to do, even for a busy middle-school, high school, or college student.  We’re so confident you’ll love the course that if for any reason you are not satisfied with the course and don’t get value out of it, we will refund 100% of your money.



Hi, I’m Dr. Leslie!

As a lifelong athlete, I not only dealt with multiple injuries myself, but also saw some of my most talented friends and teammates sidelined by knee injuries.

It was so hard for us to watch from the sidelines, but what else could we do?  We stretched before every practice and game.  Wasn’t that enough?

It wasn’t until I started working as a Physical Therapist that I realized the ACL injury epidemic in American sports, especially among females (who are 2-9 times more likely to sustain an ACL injury).  Worst of all, I learned that this injury was preventable, but most coaches and parents had no idea how to teach injury prevention.  

That’s when I made it my mission to help you play the sports you love for as long as you want and to push as hard as you can… without the fear of knee injury or losing a season.

Please join me in the Classic Course so you never have to watch from the sidelines.

Dr. Leslie Desrosiers, PT, DPT, OCS, CSCS


The only requirement is a resistance mini band.  We highly recommend a Balance Trainer (i.e. BOSU) to get the most out of the balance/stability exercises, but it’s not required.  There are alternatives provided if you don’t have a BOSU, such as a pillow, foam pad, or dynadisc.  We also show how to use a foam roller and stretching strap if you have access to one, but these are optional.  See our equipment page for more info.

You can enroll your team in 3 easy steps:

One: Complete our Team Discount form here. (CLICK HERE) 

Two: We will email you a Coupon Code and Registration instructions for each participant to sign-up individually.

Three: Coach and participants self-register and gain access to the course immediately!

Pricing is based on number of participants and grants a one year license to all who register with the team.  Complete our Team Discount form here (CLICK HERE) and we will email you the registration instructions and pricing details.

While the course is designed for individual participants, we understand that parents may purchase the course for their children to participate in together.  Doing the exercises together can be helpful for compliance, motivation, and keeping good form. Please keep the login credentials within your own family, as number of logins per day may be restricted and will impact progress through the course. 

The Classic Course is not intended for rehab from an existing injury without an evaluation by a medical professional or physical therapist first.  If you are cleared to play a sport and have NO precautions for weight-bearing, range of motion, jumping, and lateral cutting, then you can participate in the course.  We highly encourage participants NOT to push into pain or discomfort during the exercises.  We provide modifications for most exercises and participants should choose the intensity that they can perform with good form (and no pain).  We emphasize quality over quantity.  If pain is noted during an exercise, we ask participants to follow these steps:  1) Check your form, 2) Decrease Intensity or Impact, and 3) If pain persists, then simply skip that exercise.  After ACL reconstruction, we recommend waiting 12+ months to participate in the course.  Once you are cleared for running, jumping, and changing directions WITHOUT pain or limitations, then you may participate at 9 months post-op.

Yes, I love interacting with members.  You can email me for support any time!  I also encourage you to utilize the Facebook group for support.  Our Tribe is amazing and can help answer many of your questions as well.

The problem with searching for your own “injury prevention” exercises on Google or Youtube is that you are not getting a comprehensive program that addresses all 5 pillars of injury prevention.  It can be overwhelming to sift through hundreds of exercises, determine which are right for you, and make sure you are covering all aspects that are necessary for effective prevention.  You will likely stumble upon exercises that may or may not be appropriate for your level of fitness and body control. Choosing the wrong exercises, or doing exercises the wrong way, can be dangerous and may lead to injury.

Yes, you can log in from any device including your desktop, tablet, or mobile phone.

Purchasing the course gives you a personal license with lifetime access.  If you are a team or organization, purchasing the course grants you access for 1 year.  By this time, we find many of our teams and participants have incorporated the exercises and techniques into their normal routine.  If you need to use the course longer, you may buy an additional year’s license or register for the updated version of the course.  Please see our Team Inquiry page.

A long-term maintenance plan should include continuing with neuromuscular training exercises for about 15 minutes, 2-3 times per week during pre-season and through the duration of the season.  There are a couple of options to do this:

  1. Participants can repeat the course from the beginning, choosing the options/modifications that are appropriate for them.
  2. Participants can select exercises or modules from the course to repeat 2-3 times per week.
  3. Participants can choose to upgrade to the VIP Club membership, which holds the entire library of neuromuscular training exercises in the ACL Strong Vault, as well as a monthly routine, and a featured exercise each month.  You can utilize the “Vault” to create your own routines.