Question

Which of the following statements BEST describes the movement occurring at the ankle joints when a person in a standing position rises up on his or her toes?

A. Passive and open kinematic chain
B. Active and open kinematic chain
C. Passive and closed kinematic chain
D. Active and closed kinematic chain

Answer 1

The correct statement for the movement at the ankle when rising on toes is 'Active and closed kinematic chain', involving active muscle engagement and a fixed foot position.

Step-by-step explanation:

The statement which BEST describes the movement occurring at the ankle joints when a person in a standing position rises up on his or her toes is Active and closed kinematic chain. This is because as the individual actively uses their muscles to plantar flex the foot, the heel lifts off the ground, thus creating extension at the ankle joint. This movement involves the muscles in the back of the leg pulling on the Achilles tendon, mimicking the action in a closed kinematic chain where the end segment (the foot) is in a fixed position on the ground.