Stronger Legs, Healthier Knees, and Better Balance in just 6 weeks, so you can spend a lifetime on the snow

Discount for NSP Members!

Don't let knee pain or a preventable injury ruin your season or career


As a patroller, you’ve probably seen more knee injuries on the mountain than you can count.  In fact, knees are the most frequently injured body part in skiing, and the ligaments (ACL or MCL) are almost always involved.

A torn ligament means NO MORE skiing or riding for awhile.  ACL injuries usually require reconstructive surgery and a year of rehab.  Unfortunately, 1 in 4 will suffer another torn ACL within the first 2 years after surgery; and most people say their knee is never the same because of weakness, residual pain, and fear of re-injury. 

The worst part?

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


A professional neuromuscular training program created by Dr. Leslie Desrosiers to help you feel better,
move better, and safely protect your knees for a long career on the snow.

Online program designed by experts, for experts…




"This program rocks!"

This program rocks! I’m already feeling stronger in my legs and more agile. I feel a difference after each module. I will definitely keep up with these exercises.
Peggy Erickson
PSIA-AASI Instructor
As a ski patroller with some nagging knee pain from an injury 30 years ago, I am very happy to have found your courses through NSP. Great stuff! Thank you!
Stephen Goeben
National Ski Patrol
Severed my ACL 20 years ago, it was not surgically repaired. I've used a brace ever since. There has always been some pain or stiffness during and after ski season. This year, no pain, no stiffness. ACL Strong exercise program really helped. Thank you.
M Brown
National Ski Patrol

Organizations who Trust ACL Strong


At 30-45% OFF, National Ski Patrol members get a deal they simply can’t pass up. Take care of your body so you can keep saving lives.  Choose a Package from the two options below and use your coupon code at checkout.



Enjoy the mountain, and perform better, this season and many more.  
It’s easy to get started!

Step 1: Register

Register and use your NSP Pro Deal coupon code at checkout

Step 2: Follow The Plan

Simple exercises at-home for 15-20 minutes, 2-3 days per week, for 4-6 weeks

Step 3: More Years on Snow

Feel Stronger, Ski and Ride Better, and have a lower chance of Injury


Wondering how this works?  ACL Strong’s progressive 6-week course offers a simple, step-by-step blueprint to bulletproof your knees by enhancing the following components…





We offer a 30 day, no-questions-asked refund.  Over 1000 people have joined the ACL Strong program, and the feedback has been extremely positive.  Many people return each year to repeat the course!  The exercises are quick and easy to do, even for a busy student, parent, or athlete working multiple jobs.  We’re so confident you’ll love the course that if for any reason you are not satisfied with the course, 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 wasn’t until I was in grad school to become a Physical Therapist that I realized how simple it really is to prevent ACL injuries, but most people have no idea what to do for it.  

I developed ACL Strong to help make this type of training easy and accessible to people who want it. I want you to be able to enjoy the sports you love for as long as you want… without knee pain or preventable injuries getting in your way.

Please join me in the Snow Course so you never have to miss a season.

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


The only requirement is a resistance mini band.  We highly recommend a Balance Trainer (i.e. BOSU or dyna disc) 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 other.  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.

The Snow 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 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 9-12 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.

You can enroll a group in 3 easy steps:

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

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

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

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.

Yes!  We encourage teams, departments, and organizations to do this training.  Pricing is based on number of participants and grants a one year license to all who register with the team or organization.  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 families may purchase the course 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 tracking/progress through the course. 

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 necessary components 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.  The best way to continue to reduce injuries each year is by returning to this program with your team or organization each year.  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. 
  4. Repeat the Snow Course before each winter ski/ride season. 
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