This notch is the groove at the bottom of the femur(where it meets the knee). The notch is larger in men than it is in women. Doctors think it’s possible that because the notch is narrower in women, it restricts the movement of the ACL, especially during twisting movements. The other anatomy factor is that women half wider hips than men. The width of their hips can affect the alignment of the knee which is why women are more prone to kness that move inward, also known as knock-knees. The inward movement puts stress on the ACL, especially with the added force of landing a jump or turning.
One factor of the biomechanics is that the way bodies move and react can differ between men and women. For instance, women’s knees tend to be more flexible which leaves women more prone to hyperextend the knee and put strain on surrounding muscles, tendons, and