The Q angle

The pelvic cavity of the male skeleton is narrow while the pelvic cavity of the female skeleton is wider and deeper.

Thus, the legs of the male skeleton are straighter due to the narrow pelvis while the legs of the female skeleton are slanted.

The Q angle is the quadriceps angle where the femur goes into the hip joint.

Biological females have an acute Q angle.
It's an important skeletal trait because it is related to childbearing.
A man’s angle goes almost straight in.

They are all related :

Pelvis ➡️ Q angle ➡️ Gait

The Gait

Compare the male and female gaits

The female gait

Observe biological women walking.

You see :

The female Q angle.

The slanted legs.

One foot in front of the other ➡️ mincing.

The male gait

The male Q angle

The humerus bone

Biological males have a long humerus bone.
The top of the humerus bone helps shape the square shoulders.
The elbow bend aligns with the bottom of the rib cage.

Biological females have a short humerus bone.
The humerus bone starts lower, giving the sloping shoulders.
The elbow aligns with the hourglass waist as it fits right into it.