Forces transmitted across the knee joint during normal walking range between 2- and 3-times body weight. This is in part due to the kinetics of acceleration, the high moments generated at the knee, and simultaneous contraction of multiple muscles. Therefore, the net effect of each additional kilogram in body weight is multiplied 2 or 3 times at the knee.
Malalignment of the lower extremity, which overloads one compartment at the expense of another, is also associated with progression of osteoarthritis. Medial compartmental osteoarthritis has been linked to varus knee alignment and to increased external adduction moment at the knee.
Better shock absorption capacity with a good intrinsic muscle tone and a good arch of the foot prevent us from increase impact at the knee joint. Our first point of contact with the ground are our feet and good intrinsic muscle tone and well-formed arch help us in shock absorption and subsequent prevent us from knee injuries.
Ultimately, all these mechanism helps us in prevention from accelerated degeneration of the knee joint and subsequent OA knee. Better to correct biomechanics and live a healthy and pain free life.
Live life free from pain and disabilities.