save your knees

The Snow Course is a proven exercise plan to keep you shredding the mountain longer, without knee pain, stiffness, or a major injury getting in your way


Instructors and Patrol! Keep your knees feeling good so you can work, play, and slide for life


Be ready for an epic season, dominating the slopes and exploring new terrain


We partner with insurance companies to offer policyholders a program to stay safe and injury-free

Here's The Thing: ACL Injuries Happen. Knee Pain Happens. Arthritis Happens
...and it's harder to ski or ride when you're injured, stiff, or sore.

Knee problems pain overuse caused by everyday activities


A simple, at-home training program created by Dr. Leslie Desrosiers to help skiers and riders protect their knees, prevent injuries, and dominate the slopes as many long as possible.

"A First-Class Program!"

Over 1500 members have joined ACL Strong and the feedback has been AMAZING!

No one should lose their season because of a torn ACL or arthritis


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 course offers a simple, step-by-step blueprint to bulletproof your knees.  You’ll start with easier exercises to build a strong foundation, and the exercises 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


ACL Strong has partnered with major organizations in the ski and ride industry to support those who work and play on the snow.  To learn more about group enrollment at a ski area, click the SKI AREA PROGRAM button below. National Ski Patrol members can access their Pro Deal Discount with the button below. 

Group Enrollment for 10-10,000 participants

Access your NSP Pro Deal Coupon Code

NSAA Research Study planning underway


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 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 athletes had no idea what to do for prevention.

That’s when I made it my mission to help you enjoy the sports you love for as long as you want… without the fear of knee injury.

Please join me in the Snow Course so you never have to “watch from the sidelines.”

Dr. Leslie Desrosiers, PT


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.

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!  Ski and Ride Instructors – Click Here

National Ski Patrol members – Click Here

If you are part of a Ski Area Program, then you may join from the Resorts page with your coupon code – Click Here

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.

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. 

Better yet, there is now an ACL Strong app that you can download from the AppStore or Google Play Store to access all of your courses.

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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