AK Biomechanics & Body Movement Analysis 1

Question 1

What is the primary focus of biomechanics?

Accepted Answer

Understanding mechanical movement of the body.

Answer

Biomechanics is the study of the mechanical principles governing movement in living organisms. Its primary focus is to understand how forces and movements interact within the human body during various activities, from walking to athletic performance. This field applies physics and engineering concepts to analyze the musculoskeletal system and its functions.

Question 2

Which term describes a force that causes rotation around a joint?

Accepted Answer

Torque

Answer

Torque is the rotational equivalent of force, representing the twisting force that causes rotation around an axis, such as a joint. In the body, muscles generate torque to produce angular movements like flexion, extension, or rotation at joints. Understanding torque is fundamental to analyzing joint mechanics and muscle function.

Question 3

What is the correct anatomical term for movement away from the midline?

Accepted Answer

Abduction

Answer

Abduction is the anatomical term for movement of a limb or body part away from the midline of the body. For example, lifting your arm out to the side is abduction of the shoulder. This movement occurs in the frontal plane.

Question 4

Which plane divides the body into front and back sections?

Accepted Answer

Frontal

Answer

The frontal plane, also known as the coronal plane, divides the body into anterior (front) and posterior (back) sections. Movements such as abduction and adduction of the limbs occur within this plane. Understanding anatomical planes is crucial for describing and analyzing body movements.

Question 5

Which of the following best describes a first-class lever in the body?

Accepted Answer

Neck extension with skull as load

Answer

A first-class lever has the fulcrum (pivot point) positioned between the effort (force applied) and the load (resistance). In the body, neck extension, where the atlanto-occipital joint acts as the fulcrum, the neck extensor muscles provide the effort, and the weight of the skull is the load, is a classic example of a first-class lever.

(AK) Certified Applied Kinesiologist Practice Test

(AK) Certified Applied Kinesiologist Practice Test

AK Biomechanics & Body Movement Analysis 1