A football kicker primarily uses which muscle movement to kick the ball?
A. Abduction
B. Adduction
C. Extension
D. Circumduction
A
A football kicker primarily uses muscle movement C. Extension to kick the ball.
The correct answer is C. Extension.
To determine this, you need a basic understanding of anatomy and the movements of muscles. Here's a breakdown of each option and why extension is the correct answer:
A. Abduction: Abduction refers to moving a body part away from the center of the body. This movement is not used in the kicking motion of a football.
B. Adduction: Adduction refers to moving a body part towards the center of the body. This movement is also not used in the kicking motion of a football.
C. Extension: Extension refers to straightening or increasing the angle of a joint, allowing the two bones connected by the joint to move farther apart. In the case of a football kicker, the action of kicking the ball involves the movement of the leg extending from a bent position to a straightened position, generating the power required to propel the ball. This extension primarily uses the muscles in the quadriceps (thigh muscles) to straighten the knee joint and propel the leg forward to make contact with the ball.
D. Circumduction: Circumduction refers to making a circular movement with a body part, where the end of the body part traces out a cone shape. This movement is not used in the football kicking motion either.
In conclusion, the action of kicking a football primarily utilizes the muscle movement of extension.