CROSS HUMAN PERFORMANCE
KNEE REHAB SOLUTIONS
TOTAL KNEE REPLACEMENT AND CHRONIC KNEE PAIN
My program is designed as a long term solution to a wide variety of knee aches, pains & dysfunctions:
Total Knee Replacement
Osteoarthritis
Meniscus Degeneration/minor tear
Patellofemoral Pain Syndrome
Iliotibial Band Syndrome
Tendinopothy
Post-Surgical/Post-Traumatic stiffness and weakness
General Knee Instability
...beginning with a 1-on-1 virtual assessment to get down to the root cause of your problem.
About David A. Brennan and Cross Human Performance
David A. Brennan is a dedicated Physical Therapist Assistant and Certified Exercise Therapy Specialist through ISSA, bringing over 13 years of hands-on experience in the world of knee rehabilitation. His passion for rehab was born out of personal adversity—after suffering a sports-related knee injury, David became driven to understand the recovery process from the inside out. That journey shaped his deep commitment to helping others overcome knee pain and dysfunction with clarity and purpose.
Recognizing the limitations and frustrations of traditional rehab models, David founded Cross Human Performance to provide a more personalized, no-nonsense approach to recovery. His 1-on-1 method cuts through the red tape and focuses on what truly matters: real solutions, real progress, and real people reclaiming their strength and function.
"After my knee replacement, nothing worked until this program. Clear, direct, and actually effective. I'm back on my feet and feeling strong."
John M.
"Years of knee pain, gone. David’s approach is simple, personalized, and finally made sense."
Alyssa R.
"I never fully recovered after my ACL tear—until now. This program pushed me the right way with real results."
Marcus T.