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Ground Reaction Force and Frontal Plane Motion in Human Movement

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Ground Reaction Force and Frontal Plane Motion in Human Movement

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Questions and Answers

What is the typical angle of inclination in the frontal plane for an adult?

150°

110°

144°

125° (correct)

What is the term for an increased angle of inclination in the frontal plane?

Coxa valga (correct)

Frontal plane motion

Coxa vara

Leg length discrepancy

What is the primary function of the hip during bilateral support of the HAT?

To provide stability to the upper body (correct)

To facilitate movement of the leg on the trunk

To initiate movement of the arms and head

To allow movement of the trunk on the leg

What is the effect of coxa valga on the weight bearing of the head of the femur?

Increased weight bearing Signup and view all the answers

What is the effect of coxa vara on the moment arms of gluteus medius and minimus?

Decreased moment arms Signup and view all the answers

In a closed kinematic chain, which part of the body is moving?

The upper body is moving on the leg Signup and view all the answers

At what stage of life is the angle of inclination in the frontal plane typically 150°?

Infancy Signup and view all the answers

What is the name of the kinematic chain where the movement of the leg is on the trunk?

Open kinematic chain Signup and view all the answers

In optimal posture, what is the characteristic of the line of gravity in the coronal plane?

It divides the body into two symmetrical parts Signup and view all the answers

What is the term for a decreased angle of inclination in the frontal plane?

Coxa vara Signup and view all the answers

What is the term for the hip's ability to support the head, arms, and trunk on one leg?

Unilateral support of HAT-L Signup and view all the answers

What is the direction of the external flexion moments in a flexed-knee posture?

Acting around the hip, knee, and ankle joints Signup and view all the answers