OT Kinesiology 5

Question 1

An OT observes a client who cannot extend the DIP joints of the fingers but can extend the PIP and MCP joints. Which structure is most likely damaged?

Accepted Answer

Terminal tendon of the extensor mechanism

Answer

The terminal tendon (distal insertion of the extensor mechanism) extends the DIP joint; its disruption causes a mallet finger deformity with DIP flexion.

Question 2

Which of the following statements about the knee joint's Q-angle is clinically most relevant in OT?

Accepted Answer

A Q-angle greater than 15–18° in females may predispose to patellofemoral dysfunction

Answer

Women typically have a larger Q-angle (>15–18°) due to wider pelvis, which increases lateral pull on the patella and risk of patellofemoral pain syndrome.

Question 3

During analysis of wheelchair propulsion, which phase is most metabolically demanding and most stressful to the shoulder?

Accepted Answer

The initial contact and push phase

Answer

The push phase of wheelchair propulsion generates the greatest joint forces and muscular demands at the shoulder, especially during initial contact through mid-push.

Question 4

A client demonstrates 'boutonnière deformity' of the finger. Which positional pattern defines this deformity?

Accepted Answer

PIP flexion and DIP hyperextension

Answer

Boutonnière deformity involves PIP flexion and DIP hyperextension, caused by disruption of the central slip allowing the lateral bands to migrate volarly.

Question 5

In analyzing lifting tasks for ergonomic OT intervention, the NIOSH lifting equation calculates a Recommended Weight Limit (RWL). Which factor has the greatest potential to reduce RWL from its maximum?

Accepted Answer

Horizontal distance of the load from the body

Answer

Horizontal distance (H) is the most influential multiplier in the NIOSH equation because torque on the lumbar spine increases dramatically as load moves away from the body.

OT - Master of Occupational Therapy Practice Test

OT - Master of Occupational Therapy Practice Test

OT Kinesiology 5