OMT Kinesiology & Biomechanics 2

Question 1

Which of the following best defines 'torque' in biomechanics?

Accepted Answer

The tendency of a force to cause rotation around an axis

Answer

The speed at which a body segment moves

Answer

The compressive force on a joint surface

Answer

The linear distance a segment travels

Question 2

During normal gait, which phase accounts for approximately 60% of the gait cycle?

Accepted Answer

Stance phase

Answer

Swing phase

Answer

Terminal stance

Answer

Pre-swing

Question 3

The center of gravity in an average standing adult is located approximately at which level?

Accepted Answer

Anterior to S2 vertebra

Answer

T12 vertebra

Answer

At the umbilicus

Answer

At the iliac crest

Question 4

Which muscle is considered the primary stabilizer of the scapula during upper extremity elevation?

Accepted Answer

Serratus anterior

Answer

Pectoralis minor

Answer

Rhomboid major

Answer

Levator scapulae

Question 5

The scapulohumeral rhythm refers to the ratio of glenohumeral to scapulothoracic motion during arm elevation. What is the commonly accepted ratio?

Accepted Answer

2:1

Answer

1:1

Answer

3:1

Answer

4:1

Question 6

When a force is applied perpendicular to a bone segment at its midpoint, the resulting bending stress is greatest at which location?

Accepted Answer

At the site of force application

Answer

At the proximal joint

Answer

At the distal joint

Answer

Equally distributed throughout the bone

Question 7

Which type of muscle fiber is characterized by high oxidative capacity, slow-twitch properties, and resistance to fatigue?

Accepted Answer

Type I fibers

Answer

Type IIx fibers

Answer

Type IIa fibers

Answer

Type IIb fibers