Massage Therapist FREE Massage Therapist Kinesiology and Biomechanics Questions and Answers 2

Question 1

Which type of muscle contraction occurs when a muscle generates force while lengthening, such as slowly lowering a weight?

Accepted Answer

Eccentric contraction

Answer

An eccentric contraction occurs when a muscle lengthens under tension, controlling the speed of movement against an external force.

Question 2

What is the primary role of the rotator cuff muscles during shoulder abduction?

Accepted Answer

Stabilizing the humeral head in the glenoid fossa

Answer

The rotator cuff muscles act as dynamic stabilizers, keeping the humeral head centered in the shallow glenoid fossa during shoulder movements.

Question 3

In biomechanics, what does a first-class lever system have in common with a seesaw?

Accepted Answer

The fulcrum is located between the effort and the resistance

Answer

A first-class lever has the fulcrum positioned between the effort force and the resistance force, just like a seesaw.

Question 4

Which plane of motion divides the body into front and back halves and includes movements such as lateral flexion?

Accepted Answer

Frontal (coronal) plane

Answer

The frontal plane divides the body into anterior and posterior sections, and movements like lateral flexion and abduction occur within this plane.

Question 5

What term describes the point at which a muscle attaches to the more movable bone?

Accepted Answer

Insertion

Answer

The insertion is the muscle attachment site on the bone that typically moves during contraction, as opposed to the origin on the more stationary bone.

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Massage Therapist FREE Massage Therapist Kinesiology and Biomechanics Questions and Answers 2