OMT Kinesiology & Biomechanics 3

Question 1

In orthopedic massage, understanding the closed-packed position of a joint is important because in this position the joint is:

Accepted Answer

Most congruent with maximum ligamentous tension

Answer

In the closed-packed position, joint surfaces are maximally congruent, ligaments are taut, and the capsule is under greatest tension, making it the most stable but least accessible position.

Question 2

Which kinematic concept describes the motion of one joint surface rolling and sliding on the opposing surface simultaneously?

Accepted Answer

Arthrokinematics

Answer

Arthrokinematics describes the small accessory motions (roll, slide, spin) that occur between joint surfaces during physiological movement.

Question 3

According to the convex-concave rule in joint mobilization, when a convex surface moves on a fixed concave surface, the roll and slide occur in which directions?

Accepted Answer

Opposite directions

Answer

When a convex surface moves on a fixed concave surface, roll occurs in the direction of movement while the slide (glide) occurs in the opposite direction.

Question 4

A therapist assesses 'length-tension relationship' when evaluating a muscle. What does this term describe?

Accepted Answer

The relationship between muscle resting length and its force-generating capacity

Answer

The length-tension relationship describes how a muscle's ability to generate force varies with its current length, with optimal force produced at resting length.

Question 5

Which biomechanical principle explains why the lumbar spine is at greatest risk for injury during combined flexion, lateral flexion, and rotation?

Accepted Answer

Coupling motion and triaxial loading

Answer

Coupled motion combined with triaxial loading places simultaneous compressive, shear, and torsional stresses on lumbar discs and facet joints, dramatically increasing injury risk.

OMT - Orthopedic Massage Certification Practice Test

OMT - Orthopedic Massage Certification Practice Test

OMT Kinesiology & Biomechanics 3