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Kinesiology Flashcards

7 cards from real OT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Kinesiology flashcards as text
  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?

    Answer: Terminal tendon of the extensor mechanism

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

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

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

    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.

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

    Answer: The initial contact and push phase

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

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

    Answer: PIP flexion and DIP hyperextension

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

  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?

    Answer: Horizontal distance of the load from the body

    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.

  6. Which intrinsic foot muscle, important for arch support during standing activities in OT, is often targeted in foot orthotic interventions?

    Answer: Abductor hallucis

    The abductor hallucis supports the medial longitudinal arch and is frequently weakened in clients with pes planus, making it a target for strengthening and orthotic support.

  7. When an OT grades muscle strength as 3/5 (Fair) using the Medical Research Council (MRC) scale, this means the muscle can:

    Answer: Move the limb through full range of motion against gravity only

    An MRC grade of 3/5 indicates the muscle can complete full ROM against gravity but cannot tolerate any additional resistance beyond body weight.