Why Do My Knees Make a Loud Grinding Noise When I Do Lunges?
1. Introduction A loud grinding noise in the knees during lunges is clinically known as crepitus, resulting from rough articular cartilage rubbing behind the kneecap or the patella tracking poorly within the femoral groove. This mechanical friction, often an early sign of patellofemoral pain syndrome or chondromalacia patellae, amplifies under the substantial compressive load of … Read more