Question

multiple choice 1 point
what type of stress occurs at the knee during extension?
tensile
shear
torsion
compression

Explanation:

During knee extension, the forces acting on the knee joint cause a type of stress where layers of tissue tend to slide over each other. Shear stress is defined as stress that occurs when forces are applied parallel to a surface, causing one part of a material to slide over an adjacent part. In the context of knee extension, this sliding - like action (due to the movement and the forces involved) is characteristic of shear stress. Tensile stress is about stretching, torsion is about twisting, and compression is about squeezing, none of which accurately describe the stress during knee extension.

Answer:

shear