Online courses to Prevent Knee Injuries and Enhance Performance

so you can keep doing the sports you Love

A major knee injury or torn ACL changes everything.

Rupturing a ligament in the knee, like the ACL (Anterior Cruciate Ligament), is not only excruciatingly painful, but emotionally heartbreaking, and usually season-ending for competitive athletes.  Most require surgery, followed by a year of recovery with extensive rehabilitation.  The social-emotional impact can be just as difficult as the physical, if not harder.

Too many young athletes miss out on high school and college opportunities as a direct result of a knee injury.  Too many people have to quit their sport because of knee problems or degenerative joint disease.

Worst of all, statistics show that after ACL reconstruction, most athletes don’t return to their same level of competition, 1 in 4 will re-tear their ACL, and 50% will go on to develop early arthritis. 

Don’t let this happen to you or your athlete, especially when “injury prevention” or “risk reduction” has never been easier.

ACL Injuries per year in the US
1 %
of ACL injuries occur during turning, cutting, or jumping
1 %
Reduced Risk after a 4-6 week Injury Prevention program
1 %
Recommend ACL Strong for Prevention and Performance

We have the SOLUTION
...and nobody does it like we do!

Our online courses help athletes strengthen properly around the knees, hips, and core to prevent or avoid injuries. Our step-by-step process guides athletes through the exact exercises to do in a short amount of time, so they don't get lost or have to figure it out on their own.


Online platform with simple exercise routines you can do at home, on your schedule, with minimal space and equipment


Doctors of Physical Therapy guide you or your athletes step-by-step to avoid injuries that will impact a budding or thriving career


Research has proven a 53-67% risk reduction with a 4-6 week neuromuscular training program for injury prevention!

Our Most Popular Courses

Don't waste time figuring out the right workout from infinite possibilities. Choose an ACL Strong Course based on your sport. Start with the Snow Course or Classic Course, then select the Add-Ons that are right for you.
Group Rates Available.

Knee Safety and Performance
Prevent knee injuries in skiing

Snow Course (v3)

Skiers and Boarders! Protect your knees so you can slide for life! Follow the exact program that has helped more than a thousand instructors, patrollers, and on-snow employees improve performance, avoid injuries, and feel better! Don’t miss this chance to keep your knees healthy!

Ski and Ride Pros START Here

Performance and ACL Injury Prevention
prevent knee injuries in soccer

Classic Course (v3)

Attention all field/court athletes (soccer, basketball, lacrosse, etc)! Does your competitive athlete dream of playing a sport at a higher level, maybe even on a college scholarship? Help them protect their knees so they can thrive in sports for life!

Competitive Youth Athletes START Here

A Proven System with Professional Training
For You, Your Athletes, or Your Employees

Our Program has clear instructions and easy modifications for people of all ages and skill-level.
Choose an ACL Strong Course based on your sport. If you're not sure which course you need, read below:

Dr. Leslie Desrosiers, PT, DPT, OCS, CSCS
Founder of ACL Strong and Injury Prevention Expert

Athletes in sports that involve lateral movements and quick changes in speed and direction are at HIGH RISK for a torn ACL and should be enrolled in the Classic Course for protecting their knees and improving performance on the field or court.  Researchers and experts agree that all youth athletes 12-25 years old should participate in this type of training.  Click Here to Learn More

ACL injuries happen all the time on the snow, even to highly experienced skiers and riders.  More hours on the snow = higher risk of knee injury and wear-and-tear on the joints.  Chronic knee pain and acute injuries take people off the mountain every year.  Snow athletes should enroll in the Snow Course prior to the beginning of the season and should continue with the maintenance exercises during the season.

Ski area employees in all departments will benefit from the training, and fewer injuries occur as a result.  We are partnered with PSIA-AASI and National Ski Patrol to support those working daily on the snow.  Click here to learn more about the Snow Course and consider the Ski Area Program if you are part of an organization.

Organizations and Communities such as Soccer Teams, Basketball Clubs, and Ski Resorts across the world are reducing injury rates with ACL Strong by returning each year to complete the training as a group.  Group discounts are available and rate is determined by number of participants.  Contact us for a quote.

What Our Students Have to Say

Dr. Leslie has done an amazing job creating ACL strong! As a fellow therapist, and bb coach, this program is both doable for the busy athlete and spot on in the training. I love the educational side, and the improvement I saw in our athletes in 4 weeks was awesome. Thank for your work!
Linda Schuck
Basketball Coach from Minneapolis, MN
After the first couple of weeks, my legs and knee felt stronger, and more importantly, my pain was gone. The videos were very detailed on how to do the exercises which made them super easy to do. Thanks Dr. Leslie!!!
Ron Kutsch
Ski Instructor from Colorado Springs, CO
I have had three surgeries in one year. I went to PT in three different states and was strong again to jump back into ski instructing with only missing one season. BUT your program is so awesome! I was blown away! I really enjoyed the versatility of the different moves and explanation especially for those that don't have a Bosu ball or other professional equipment handy. Although my surgeons had done work for the US ski teams, I never found a PT that incorporated as many ski like strengthening moves as you. AMAZING! In fact a lot of us instructors have been excited to share our progress with each other in the locker room in the mornings. I can' wait to keep up this routine and do it all over again next season. I will forever be recommending your program thank you!!
Charity Russell
Ski Instructor from Schweitzer Mountain Resort
The girls had an amazing season, played at an extremely high level, and we finished the season ACL strong! I believe the core strength, stability, balance, and technique we train through your ACL strong program has helped keep us almost completely injury free.
Roy Snyder
Soccer Coach from St. Cloud, MN
With much of the emphasis on the core and hips, I received an unexpected benefit from the program that helped my hips! I had an old hip injury that bothered me for years, but sometime during the program I noticed the chronic, nagging pain I had was gone. So . . . thanks ACL Strong!
John Minnaberry
Ski Patrol from Tahoe, CA

Download a FREE Guide

Get 5 quick tips to start using right away that will help reduce the risk of injury. Don't wait and regret it later. Grab this FREE Guide Today. 5 Tips to Prevent ACL Injuries...And the MOST VALUABLE Decision You Can Make to Protect Their Future

Get In Touch With Us!





Scroll to Top