Recovering from an ACL injury is a journey that demands not only surgical expertise and careful rehabilitation but also a deep understanding of strength, conditioning, and athletic performance. On a recent episode of the University Orthopedics PT Podcast with Dan Bien, Dan sat down with Rob Panariello—physical therapist, athletic trainer, strength and conditioning coach, and consultant with over 40 years of experience—to discuss best practices for guiding athletes through ACL recovery.
Early Rehab: Building the Foundation
While much attention is often given to later phases of ACL rehab, Panariello emphasizes the importance of the first 12–16 weeks. “That period prepares you for everything that comes after,” he explains. Early priorities include:
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Controlling pain and swelling to restore muscle activation.
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Restoring quadriceps function, often challenged by arthrogenic inhibition.
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Introducing overload safely through methods like neuromuscular stimulation and progressive resistance.
This groundwork ensures patients are ready for more advanced strength and power training later in recovery.
The Role of Strength as the Foundation
Panariello stresses that strength is the cornerstone of athletic performance. Drawing from Al Vermeil’s Hierarchy of Athletic Development, he outlines how qualities like explosive power, elastic strength, and speed all depend on a strong base. Without it, athletes cannot safely or effectively progress to advanced movements such as sprinting, jumping, or change of direction drills.
Integrating Strength & Conditioning Principles
One of the most common shortcomings in ACL rehab, according to Panariello, is underloading. He believes physical therapists often stop short of challenging athletes with the intensity needed to prepare them for the demands of sport. His approach incorporates:
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Structured progression of strength training, often starting with sets of 5–6 reps at meaningful loads.
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Olympic lifting variations to develop explosive strength, deceleration capacity, and sport-specific movement patterns.
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Plyometric preparation using exercises like box jumps, pogos, and ankling drills to build tissue tolerance before progressing to true plyometrics.
Testing and Progression
How do you know when an athlete is ready to progress? Panariello uses a combination of standardized tests and practical measures, such as:
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The Five-Jump Test, which assesses strength, explosive power, and elastic ability in sequence.
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Strength and power benchmarks, such as squatting body weight and performing loaded jumps.
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Observation of movement quality and tolerance, ensuring progression doesn’t compromise joint health or athlete confidence.
Ultimately, he emphasizes that return-to-play decisions should be guided by the standards of the sport, not just limb symmetry indexes or basic clinical tests.
Beyond the Clinic: Preparing Athletes for Sport
Rehabilitation doesn’t end when an athlete can climb stairs or jog without pain. True readiness means being able to handle the unpredictable, high-intensity demands of competition. Panariello incorporates drills to improve deceleration, reaction time, and cognitive decision-making—because as he notes, “confidence comes from demonstrated ability.”
A Lifelong Learner
Even after decades in the field, Panariello continues to consult, lecture, and learn from colleagues across orthopedics, sports performance, and physical therapy. His advice to clinicians? Build relationships with strength coaches and sports scientists. By blending clinical expertise with athletic training principles, therapists can better prepare their patients for successful, lasting returns to sport.
Takeaway for patients and athletes: ACL rehab is more than just following a protocol—it’s about progressively restoring strength, power, and confidence so you can return not only to daily life, but to peak performance.
About Dan Bien
Dan Bien is a physical therapist at our Kettle Point Campus in East Providence. Dan has worked at University Orthopedics since 2006 and serves as the Coordinator of Clinical Education for the physical therapy department.
Dan is currently recognized as an Orthopedic Certified Specialist by the American Board of Physical Therapy Specialties, a Certified Strength and Conditioning Specialist through the National Strength and Conditioning Association, and a Credentialed Clinical Instructor by the American Physical Therapy Association.