How Muscle Balance Prevents ACL Knee Injuries: The Role of Hamstrings and QuadricepsThis article explains the crucial role of muscle balance, control, and coordination in protecting the knee's anterior cruciate ligament (ACL) from injury. ACL tears often result from imbalances between the quadriceps and hamstrings, rather than just muscle weakness alone. Strong quadriceps paired with weak or delayed-activating hamstrings increase stress on…This article explains the crucial role of muscle balance, control, and coordination in protecting the knee's anterior cruciate ligament (ACL) from injury. ACL tears often result from imbalances between the quadriceps and hamstrings, rather than just muscle weakness alone. Strong quadriceps paired with weak or delayed-activating hamstrings increase stress on the ACL during movements like landing or pivoting. The hamstring-to-quadriceps strength ratio is vital for knee stability, ideally maintaining hamstrings at 60-70% of quadriceps strength. Effective prevention and rehabilitation focus on symmetrical strength training, neuromuscular control, proper landing mechanics, and fatigue-resistant conditioning. Personalized assessments enhance recovery and reduce re-injury risk. Overall, balanced, well-coordinated muscles not only protect the ACL but improve joint function and athletic performance.