Although the success of physical therapy following surgery has been well-documented and validated in patients undergoing Anterior Cruciate Ligament Reconstruction (ACLR) procedures, more recent studies have demonstrated that patient outcomes are the most favorable when surgery is delayed approximately 4 weeks until after the patient has completed a preoperative physical therapy program, or "pre-habilitation." The ultimate goal of pre-habilitation is to regain full range of motion in the knee and reach approximately 80% of pre-injury quadricep strength. However, extra physical therapy can stress both time and resources. Thus, we propose a home-based, self-guided pre-habilitation program. We hypothesize that patients participating in self-guided pre-habilitation will experience the same benefits as patients in a traditional office-based physical therapy program.

Inclusion Criteria:

• Skeletal maturity
• Acute ACL rupture occurring no longer than 4 weeks prior to presentation
• Ability to participate in a pre-habilitation program
• Nature of the injury allows adequate time for pre-habilitation
• Ability to speak, read, and understand English
• Willing and able to provide informed consent

Exclusion Criteria:

• Any injuries requiring immediate surgical intervention
• Ipsilateral meniscus tear that preventing participation in a pre-habilitation program
• Ipsilateral MCL tears grade III
• Ipsilateral PCL tears (any grade)
• Concomitant LCL injuries
• Concomitant posterolateral corner injuries
• Inflammatory arthritis
• Prior ACL rupture/reconstruction
• Anyone unable to participate in a stretching/strengthening program