FREE NCCPT Applied Science and Kinesiology Questions and Answers

Question 1

A client is performing a dumbbell biceps curl. During the upward phase of the exercise, as the weight is lifted towards the shoulder, which muscle acts as the antagonist and what type of contraction is the biceps brachii performing?

Accepted Answer

Triceps brachii, Concentric

Answer

During the upward (flexion) phase of a biceps curl, the biceps brachii is the prime mover (agonist) and shortens, which is a concentric contraction. The opposing muscle, the triceps brachii, must relax and lengthen to allow this movement, making it the antagonist.

Question 2

A lateral raise, where the arms are abducted away from the midline of the body, occurs primarily in which plane of motion?

Accepted Answer

Frontal

Answer

The frontal plane, also known as the coronal plane, divides the body into anterior (front) and posterior (back) halves. Movements in this plane include abduction, adduction, and side-bending. A lateral raise involves moving the arms out to the side, which is abduction in the frontal plane.

Question 3

Which of the following scenarios best describes an isometric muscle action?

Accepted Answer

Holding a plank position.

Answer

An isometric muscle action occurs when a muscle generates tension without changing its length, resulting in no joint movement. Holding a plank requires the core and other stabilizing muscles to contract and produce force to maintain a static position against gravity, which is a classic example of an isometric action.

Question 4

According to the principles of biomechanics, a force that causes rotation around an axis is known as what?

Accepted Answer

Torque

Answer

In biomechanics, torque (or a moment of force) is the rotational equivalent of linear force. It is the turning effect that a force produces when it is applied to a body that can rotate about an axis. Exercises involving rotational movement, like a Russian twist or swinging a bat, rely on generating torque.

Question 5

A client is performing the downward phase of a squat. What is the primary muscle action of the quadriceps during this movement?

Accepted Answer

Eccentric

Answer

During the downward phase of a squat, the quadriceps are actively lengthening under tension to control the descent against gravity. This type of muscle action, where the muscle elongates while under load, is known as an eccentric contraction.

(NCCPT) National Council for Certified Personal Trainers Practice Test

(NCCPT) National Council for Certified Personal Trainers Practice Test

FREE NCCPT Applied Science and Kinesiology Questions and Answers