STRENGTHEN KNEES and REDUCE ACL INJURIES with a simple exercise program so you or your athletes have a successful season without setbacks

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.  Most athletes require surgery, plus a year of recovery with extensive physical therapy.  The mental recovery can be even worse than the physical.

Too many young athletes miss out on high school and college opportunities as a direct result of a knee injury.

Worst of all, statistics show that most people don’t return to their same level of competition, they have a very high risk of re-injury, and a majority will develop early arthritis. 

Don’t sit back and let this happen to you or your athlete, when “injury prevention” is right at your fingertips.

ACL Injuries per year in the US
1 %
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 have to feel lost or figure it out on their own.


Online platform with simple workout 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 their career


Research has proven a >53% risk reduction (65% for females!). Experts recommend ALL athletes in high-risk sports participate in an Injury Prevention Program.

Our Most Popular Courses

Don't waste time figuring out the right workout from thousands of possibilities. Choose an ACL Strong Course based on your sport. Group Rates Available.

Knee Injury Prevention
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!

New for 2020/2021!

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!

New for 2020/2021!

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

Tons of ACL injuries happen on the snow each year, even to highly experienced skiers and riders.  More hours on the snow = higher risk of ACL injury and wear-and-tear on the knees.  Chronic knee pain and acute injuries keep 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 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.

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
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

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